id	sid	tid	token	lemma	pos
ajst-2162	1	1	academic	academic	ADJ
ajst-2162	1	2	journal	journal	NOUN
ajst-2162	1	3	of	of	ADP
ajst-2162	1	4	science	science	NOUN
ajst-2162	1	5	and	and	CCONJ
ajst-2162	1	6	technology	technology	NOUN
ajst-2162	1	7	issn	issn	NOUN
ajst-2162	1	8	:	:	PUNCT
ajst-2162	1	9	2771	2771	NUM
ajst-2162	1	10	-	-	SYM
ajst-2162	1	11	3032	3032	NUM
ajst-2162	1	12	|	|	NOUN
ajst-2162	1	13	vol	vol	NOUN
ajst-2162	1	14	.	.	PROPN
ajst-2162	2	1	3	3	NUM
ajst-2162	2	2	,	,	PUNCT
ajst-2162	2	3	no	no	INTJ
ajst-2162	2	4	.	.	NOUN
ajst-2162	2	5	2	2	NUM
ajst-2162	2	6	,	,	PUNCT
ajst-2162	2	7	2022	2022	NUM
ajst-2162	2	8	161	161	NUM
ajst-2162	2	9	study	study	NOUN
ajst-2162	2	10	on	on	ADP
ajst-2162	2	11	the	the	DET
ajst-2162	2	12	cone	cone	NOUN
ajst-2162	2	13	angle	angle	NOUN
ajst-2162	2	14	of	of	ADP
ajst-2162	2	15	sliding	slide	VERB
ajst-2162	2	16	sleeve	sleeve	NOUN
ajst-2162	2	17	ball	ball	NOUN
ajst-2162	2	18	seat	seat	NOUN
ajst-2162	2	19	in	in	ADP
ajst-2162	2	20	open	open	ADJ
ajst-2162	2	21	hole	hole	NOUN
ajst-2162	2	22	staged	stage	VERB
ajst-2162	2	23	ball	ball	NOUN
ajst-2162	2	24	throwing	throw	VERB
ajst-2162	2	25	fracturing	fracturing	NOUN
ajst-2162	2	26	ruolan	ruolan	NOUN
ajst-2162	2	27	li1	li1	NOUN
ajst-2162	2	28	,	,	PUNCT
ajst-2162	2	29	dongsheng	dongsheng	PROPN
ajst-2162	2	30	he2	he2	PROPN
ajst-2162	2	31	and	and	CCONJ
ajst-2162	2	32	lang	lang	PROPN
ajst-2162	2	33	xiong2	xiong2	PROPN
ajst-2162	3	1	1school	1school	NUM
ajst-2162	3	2	of	of	ADP
ajst-2162	3	3	chengdu	chengdu	PROPN
ajst-2162	3	4	,	,	PUNCT
ajst-2162	3	5	southwest	southwest	ADJ
ajst-2162	3	6	petroleum	petroleum	PROPN
ajst-2162	3	7	university	university	PROPN
ajst-2162	3	8	,	,	PUNCT
ajst-2162	3	9	sichuan	sichuan	PROPN
ajst-2162	3	10	610000	610000	NUM
ajst-2162	3	11	,	,	PUNCT
ajst-2162	3	12	china	china	PROPN
ajst-2162	3	13	2company	2company	NUM
ajst-2162	3	14	of	of	ADP
ajst-2162	3	15	karamay	karamay	PROPN
ajst-2162	3	16	,	,	PUNCT
ajst-2162	3	17	petrochina	petrochina	NOUN
ajst-2162	3	18	western	western	ADJ
ajst-2162	3	19	drilling	drilling	NOUN
ajst-2162	3	20	downhole	downhole	PROPN
ajst-2162	3	21	operation	operation	NOUN
ajst-2162	3	22	company	company	NOUN
ajst-2162	3	23	,	,	PUNCT
ajst-2162	3	24	xinjiang	xinjiang	PROPN
ajst-2162	3	25	834000	834000	NUM
ajst-2162	3	26	,	,	PUNCT
ajst-2162	3	27	china	china	PROPN
ajst-2162	3	28	abstract	abstract	NOUN
ajst-2162	3	29	:	:	PUNCT
ajst-2162	3	30	in	in	ADP
ajst-2162	3	31	the	the	DET
ajst-2162	3	32	ball	ball	NOUN
ajst-2162	3	33	type	type	NOUN
ajst-2162	3	34	fracturing	fracture	VERB
ajst-2162	3	35	sliding	slide	VERB
ajst-2162	3	36	sleeve	sleeve	NOUN
ajst-2162	3	37	,	,	PUNCT
ajst-2162	3	38	the	the	DET
ajst-2162	3	39	contact	contact	NOUN
ajst-2162	3	40	surface	surface	NOUN
ajst-2162	3	41	between	between	ADP
ajst-2162	3	42	the	the	DET
ajst-2162	3	43	ball	ball	NOUN
ajst-2162	3	44	socket	socket	NOUN
ajst-2162	3	45	and	and	CCONJ
ajst-2162	3	46	the	the	DET
ajst-2162	3	47	fracturing	fracturing	NOUN
ajst-2162	3	48	ball	ball	NOUN
ajst-2162	3	49	is	be	AUX
ajst-2162	3	50	the	the	DET
ajst-2162	3	51	most	most	ADV
ajst-2162	3	52	vulnerable	vulnerable	ADJ
ajst-2162	3	53	part	part	NOUN
ajst-2162	3	54	to	to	ADP
ajst-2162	3	55	failure	failure	NOUN
ajst-2162	3	56	.	.	PUNCT
ajst-2162	4	1	once	once	SCONJ
ajst-2162	4	2	the	the	DET
ajst-2162	4	3	contact	contact	NOUN
ajst-2162	4	4	surface	surface	NOUN
ajst-2162	4	5	fails	fail	VERB
ajst-2162	4	6	,	,	PUNCT
ajst-2162	4	7	the	the	DET
ajst-2162	4	8	sealing	sealing	NOUN
ajst-2162	4	9	of	of	ADP
ajst-2162	4	10	the	the	DET
ajst-2162	4	11	fracturing	fracturing	NOUN
ajst-2162	4	12	sliding	slide	VERB
ajst-2162	4	13	sleeve	sleeve	NOUN
ajst-2162	4	14	will	will	AUX
ajst-2162	4	15	fail	fail	VERB
ajst-2162	4	16	,	,	PUNCT
ajst-2162	4	17	the	the	DET
ajst-2162	4	18	fracturing	fracturing	NOUN
ajst-2162	4	19	fluid	fluid	NOUN
ajst-2162	4	20	will	will	AUX
ajst-2162	4	21	leak	leak	VERB
ajst-2162	4	22	,	,	PUNCT
ajst-2162	4	23	and	and	CCONJ
ajst-2162	4	24	finally	finally	ADV
ajst-2162	4	25	the	the	DET
ajst-2162	4	26	fracturing	fracturing	NOUN
ajst-2162	4	27	will	will	AUX
ajst-2162	4	28	fail	fail	VERB
ajst-2162	4	29	.	.	PUNCT
ajst-2162	5	1	the	the	DET
ajst-2162	5	2	contact	contact	NOUN
ajst-2162	5	3	condition	condition	NOUN
ajst-2162	5	4	between	between	ADP
ajst-2162	5	5	the	the	DET
ajst-2162	5	6	ball	ball	NOUN
ajst-2162	5	7	socket	socket	NOUN
ajst-2162	5	8	and	and	CCONJ
ajst-2162	5	9	the	the	DET
ajst-2162	5	10	fracturing	fracturing	NOUN
ajst-2162	5	11	ball	ball	NOUN
ajst-2162	5	12	is	be	AUX
ajst-2162	5	13	mainly	mainly	ADV
ajst-2162	5	14	determined	determine	VERB
ajst-2162	5	15	by	by	ADP
ajst-2162	5	16	the	the	DET
ajst-2162	5	17	cone	cone	NOUN
ajst-2162	5	18	angle	angle	NOUN
ajst-2162	5	19	of	of	ADP
ajst-2162	5	20	the	the	DET
ajst-2162	5	21	ball	ball	NOUN
ajst-2162	5	22	socket	socket	NOUN
ajst-2162	5	23	.	.	PUNCT
ajst-2162	6	1	in	in	ADP
ajst-2162	6	2	order	order	NOUN
ajst-2162	6	3	to	to	PART
ajst-2162	6	4	improve	improve	VERB
ajst-2162	6	5	the	the	DET
ajst-2162	6	6	contact	contact	NOUN
ajst-2162	6	7	condition	condition	NOUN
ajst-2162	6	8	between	between	ADP
ajst-2162	6	9	the	the	DET
ajst-2162	6	10	ball	ball	NOUN
ajst-2162	6	11	socket	socket	NOUN
ajst-2162	6	12	and	and	CCONJ
ajst-2162	6	13	the	the	DET
ajst-2162	6	14	fracturing	fracturing	NOUN
ajst-2162	6	15	ball	ball	NOUN
ajst-2162	6	16	as	as	ADV
ajst-2162	6	17	much	much	ADV
ajst-2162	6	18	as	as	ADP
ajst-2162	6	19	possible	possible	ADJ
ajst-2162	6	20	,	,	PUNCT
ajst-2162	6	21	and	and	CCONJ
ajst-2162	6	22	extend	extend	VERB
ajst-2162	6	23	the	the	DET
ajst-2162	6	24	service	service	NOUN
ajst-2162	6	25	life	life	NOUN
ajst-2162	6	26	of	of	ADP
ajst-2162	6	27	the	the	DET
ajst-2162	6	28	sliding	slide	VERB
ajst-2162	6	29	sleeve	sleeve	NOUN
ajst-2162	6	30	,	,	PUNCT
ajst-2162	6	31	based	base	VERB
ajst-2162	6	32	on	on	ADP
ajst-2162	6	33	fluid	fluid	ADJ
ajst-2162	6	34	erosion	erosion	NOUN
ajst-2162	6	35	and	and	CCONJ
ajst-2162	6	36	finite	finite	ADJ
ajst-2162	6	37	element	element	ADJ
ajst-2162	6	38	structural	structural	ADJ
ajst-2162	6	39	analysis	analysis	NOUN
ajst-2162	6	40	,	,	PUNCT
ajst-2162	6	41	this	this	DET
ajst-2162	6	42	paper	paper	NOUN
ajst-2162	6	43	has	have	AUX
ajst-2162	6	44	carried	carry	VERB
ajst-2162	6	45	out	out	ADP
ajst-2162	6	46	the	the	DET
ajst-2162	6	47	analysis	analysis	NOUN
ajst-2162	6	48	of	of	ADP
ajst-2162	6	49	the	the	DET
ajst-2162	6	50	cone	cone	NOUN
ajst-2162	6	51	angle	angle	NOUN
ajst-2162	6	52	of	of	ADP
ajst-2162	6	53	the	the	DET
ajst-2162	6	54	fracturing	fracturing	NOUN
ajst-2162	6	55	sliding	slide	VERB
ajst-2162	6	56	sleeve	sleeve	NOUN
ajst-2162	6	57	.	.	PUNCT
ajst-2162	7	1	firstly	firstly	ADV
ajst-2162	7	2	,	,	PUNCT
ajst-2162	7	3	the	the	DET
ajst-2162	7	4	erosion	erosion	NOUN
ajst-2162	7	5	of	of	ADP
ajst-2162	7	6	the	the	DET
ajst-2162	7	7	ball	ball	NOUN
ajst-2162	7	8	seat	seat	NOUN
ajst-2162	7	9	is	be	AUX
ajst-2162	7	10	analyzed	analyze	VERB
ajst-2162	7	11	,	,	PUNCT
ajst-2162	7	12	and	and	CCONJ
ajst-2162	7	13	the	the	DET
ajst-2162	7	14	erosion	erosion	NOUN
ajst-2162	7	15	rate	rate	NOUN
ajst-2162	7	16	of	of	ADP
ajst-2162	7	17	the	the	DET
ajst-2162	7	18	ball	ball	NOUN
ajst-2162	7	19	seat	seat	NOUN
ajst-2162	7	20	under	under	ADP
ajst-2162	7	21	different	different	ADJ
ajst-2162	7	22	cone	cone	NOUN
ajst-2162	7	23	angles	angle	NOUN
ajst-2162	7	24	is	be	AUX
ajst-2162	7	25	obtained	obtain	VERB
ajst-2162	7	26	.	.	PUNCT
ajst-2162	8	1	the	the	DET
ajst-2162	8	2	conclusion	conclusion	NOUN
ajst-2162	8	3	is	be	AUX
ajst-2162	8	4	that	that	SCONJ
ajst-2162	8	5	the	the	DET
ajst-2162	8	6	erosion	erosion	NOUN
ajst-2162	8	7	rate	rate	NOUN
ajst-2162	8	8	of	of	ADP
ajst-2162	8	9	the	the	DET
ajst-2162	8	10	ball	ball	NOUN
ajst-2162	8	11	seat	seat	NOUN
ajst-2162	8	12	is	be	AUX
ajst-2162	8	13	proportional	proportional	ADJ
ajst-2162	8	14	to	to	ADP
ajst-2162	8	15	the	the	DET
ajst-2162	8	16	cone	cone	NOUN
ajst-2162	8	17	angle	angle	NOUN
ajst-2162	8	18	of	of	ADP
ajst-2162	8	19	the	the	DET
ajst-2162	8	20	ball	ball	NOUN
ajst-2162	8	21	seat	seat	NOUN
ajst-2162	8	22	.	.	PUNCT
ajst-2162	9	1	combined	combine	VERB
ajst-2162	9	2	with	with	ADP
ajst-2162	9	3	the	the	DET
ajst-2162	9	4	working	work	VERB
ajst-2162	9	5	conditions	condition	NOUN
ajst-2162	9	6	of	of	ADP
ajst-2162	9	7	the	the	DET
ajst-2162	9	8	ball	ball	NOUN
ajst-2162	9	9	socket	socket	NOUN
ajst-2162	9	10	fracturing	fracturing	NOUN
ajst-2162	9	11	,	,	PUNCT
ajst-2162	9	12	the	the	DET
ajst-2162	9	13	finite	finite	ADJ
ajst-2162	9	14	element	element	NOUN
ajst-2162	9	15	analysis	analysis	NOUN
ajst-2162	9	16	of	of	ADP
ajst-2162	9	17	the	the	DET
ajst-2162	9	18	ball	ball	NOUN
ajst-2162	9	19	socket	socket	NOUN
ajst-2162	9	20	structure	structure	NOUN
ajst-2162	9	21	is	be	AUX
ajst-2162	9	22	carried	carry	VERB
ajst-2162	9	23	out	out	ADP
ajst-2162	9	24	,	,	PUNCT
ajst-2162	9	25	and	and	CCONJ
ajst-2162	9	26	the	the	DET
ajst-2162	9	27	stress	stress	NOUN
ajst-2162	9	28	conditions	condition	NOUN
ajst-2162	9	29	of	of	ADP
ajst-2162	9	30	different	different	ADJ
ajst-2162	9	31	cone	cone	NOUN
ajst-2162	9	32	angles	angle	NOUN
ajst-2162	9	33	are	be	AUX
ajst-2162	9	34	compared	compare	VERB
ajst-2162	9	35	.	.	PUNCT
ajst-2162	10	1	finally	finally	ADV
ajst-2162	10	2	,	,	PUNCT
ajst-2162	10	3	combined	combine	VERB
ajst-2162	10	4	with	with	ADP
ajst-2162	10	5	the	the	DET
ajst-2162	10	6	erosion	erosion	NOUN
ajst-2162	10	7	rule	rule	NOUN
ajst-2162	10	8	and	and	CCONJ
ajst-2162	10	9	force	force	VERB
ajst-2162	10	10	analysis	analysis	NOUN
ajst-2162	10	11	of	of	ADP
ajst-2162	10	12	the	the	DET
ajst-2162	10	13	ball	ball	NOUN
ajst-2162	10	14	socket	socket	NOUN
ajst-2162	10	15	,	,	PUNCT
ajst-2162	10	16	the	the	DET
ajst-2162	10	17	optimal	optimal	ADJ
ajst-2162	10	18	cone	cone	NOUN
ajst-2162	10	19	angle	angle	NOUN
ajst-2162	10	20	of	of	ADP
ajst-2162	10	21	the	the	DET
ajst-2162	10	22	ball	ball	NOUN
ajst-2162	10	23	socket	socket	NOUN
ajst-2162	10	24	is	be	AUX
ajst-2162	10	25	20	20	NUM
ajst-2162	10	26	°	°	NOUN
ajst-2162	10	27	.	.	PUNCT
ajst-2162	11	1	when	when	SCONJ
ajst-2162	11	2	the	the	DET
ajst-2162	11	3	cone	cone	NOUN
ajst-2162	11	4	angle	angle	NOUN
ajst-2162	11	5	of	of	ADP
ajst-2162	11	6	the	the	DET
ajst-2162	11	7	ball	ball	NOUN
ajst-2162	11	8	socket	socket	NOUN
ajst-2162	11	9	is	be	AUX
ajst-2162	11	10	20	20	NUM
ajst-2162	11	11	°	°	NOUN
ajst-2162	11	12	,	,	PUNCT
ajst-2162	11	13	the	the	DET
ajst-2162	11	14	force	force	NOUN
ajst-2162	11	15	of	of	ADP
ajst-2162	11	16	the	the	DET
ajst-2162	11	17	ball	ball	NOUN
ajst-2162	11	18	socket	socket	NOUN
ajst-2162	11	19	meets	meet	VERB
ajst-2162	11	20	the	the	DET
ajst-2162	11	21	strength	strength	NOUN
ajst-2162	11	22	requirements	requirement	NOUN
ajst-2162	11	23	of	of	ADP
ajst-2162	11	24	the	the	DET
ajst-2162	11	25	ball	ball	NOUN
ajst-2162	11	26	socket	socket	NOUN
ajst-2162	11	27	,	,	PUNCT
ajst-2162	11	28	and	and	CCONJ
ajst-2162	11	29	can	can	AUX
ajst-2162	11	30	obtain	obtain	VERB
ajst-2162	11	31	a	a	DET
ajst-2162	11	32	higher	high	ADJ
ajst-2162	11	33	service	service	NOUN
ajst-2162	11	34	life	life	NOUN
ajst-2162	11	35	.	.	PUNCT
ajst-2162	12	1	keywords	keyword	NOUN
ajst-2162	12	2	:	:	PUNCT
ajst-2162	12	3	fracturing	fracture	VERB
ajst-2162	12	4	sliding	slide	VERB
ajst-2162	12	5	sleeve	sleeve	NOUN
ajst-2162	12	6	,	,	PUNCT
ajst-2162	12	7	ball	ball	NOUN
ajst-2162	12	8	seat	seat	NOUN
ajst-2162	12	9	cone	cone	NOUN
ajst-2162	12	10	angle	angle	NOUN
ajst-2162	12	11	,	,	PUNCT
ajst-2162	12	12	erosion	erosion	NOUN
ajst-2162	12	13	rate	rate	NOUN
ajst-2162	12	14	,	,	PUNCT
ajst-2162	12	15	stress	stress	NOUN
ajst-2162	12	16	,	,	PUNCT
ajst-2162	12	17	contact	contact	NOUN
ajst-2162	12	18	stress	stress	NOUN
ajst-2162	12	19	.	.	PUNCT
ajst-2162	13	1	1	1	X
ajst-2162	13	2	.	.	X
ajst-2162	13	3	introduction	introduction	NOUN
ajst-2162	13	4	with	with	ADP
ajst-2162	13	5	the	the	DET
ajst-2162	13	6	deepening	deepening	NOUN
ajst-2162	13	7	and	and	CCONJ
ajst-2162	13	8	development	development	NOUN
ajst-2162	13	9	of	of	ADP
ajst-2162	13	10	oil	oil	NOUN
ajst-2162	13	11	and	and	CCONJ
ajst-2162	13	12	gas	gas	NOUN
ajst-2162	13	13	exploration	exploration	NOUN
ajst-2162	13	14	and	and	CCONJ
ajst-2162	13	15	development	development	NOUN
ajst-2162	13	16	process	process	NOUN
ajst-2162	13	17	,	,	PUNCT
ajst-2162	13	18	low	low	ADJ
ajst-2162	13	19	permeability	permeability	NOUN
ajst-2162	13	20	,	,	PUNCT
ajst-2162	13	21	shale	shale	NOUN
ajst-2162	13	22	,	,	PUNCT
ajst-2162	13	23	tight	tight	ADJ
ajst-2162	13	24	and	and	CCONJ
ajst-2162	13	25	other	other	ADJ
ajst-2162	13	26	difficult	difficult	ADJ
ajst-2162	13	27	to	to	PART
ajst-2162	13	28	exploit	exploit	VERB
ajst-2162	13	29	oil	oil	NOUN
ajst-2162	13	30	and	and	CCONJ
ajst-2162	13	31	gas	gas	NOUN
ajst-2162	13	32	resources	resource	NOUN
ajst-2162	13	33	account	account	VERB
ajst-2162	13	34	for	for	ADP
ajst-2162	13	35	an	an	DET
ajst-2162	13	36	increasing	increase	VERB
ajst-2162	13	37	proportion	proportion	NOUN
ajst-2162	13	38	in	in	ADP
ajst-2162	13	39	exploration	exploration	NOUN
ajst-2162	13	40	and	and	CCONJ
ajst-2162	13	41	development	development	NOUN
ajst-2162	13	42	.	.	PUNCT
ajst-2162	14	1	low	low	ADJ
ajst-2162	14	2	permeability	permeability	NOUN
ajst-2162	14	3	oilfields	oilfield	NOUN
ajst-2162	14	4	are	be	AUX
ajst-2162	14	5	widely	widely	ADV
ajst-2162	14	6	distributed	distribute	VERB
ajst-2162	14	7	in	in	ADP
ajst-2162	14	8	china	china	PROPN
ajst-2162	14	9	,	,	PUNCT
ajst-2162	14	10	especially	especially	ADV
ajst-2162	14	11	in	in	ADP
ajst-2162	14	12	sichuan	sichuan	PROPN
ajst-2162	14	13	and	and	CCONJ
ajst-2162	14	14	chongqing	chongqing	PROPN
ajst-2162	14	15	areas	area	NOUN
ajst-2162	14	16	.	.	PUNCT
ajst-2162	15	1	shale	shale	NOUN
ajst-2162	15	2	gas	gas	NOUN
ajst-2162	15	3	productivity	productivity	NOUN
ajst-2162	15	4	is	be	AUX
ajst-2162	15	5	low	low	ADJ
ajst-2162	15	6	due	due	ADP
ajst-2162	15	7	to	to	ADP
ajst-2162	15	8	its	its	PRON
ajst-2162	15	9	large	large	ADJ
ajst-2162	15	10	rock	rock	NOUN
ajst-2162	15	11	density	density	NOUN
ajst-2162	15	12	,	,	PUNCT
ajst-2162	15	13	small	small	ADJ
ajst-2162	15	14	porosity	porosity	NOUN
ajst-2162	15	15	,	,	PUNCT
ajst-2162	15	16	low	low	ADJ
ajst-2162	15	17	permeability	permeability	NOUN
ajst-2162	15	18	and	and	CCONJ
ajst-2162	15	19	complex	complex	ADJ
ajst-2162	15	20	geological	geological	ADJ
ajst-2162	15	21	conditions	condition	NOUN
ajst-2162	15	22	[	[	X
ajst-2162	15	23	1	1	NUM
ajst-2162	15	24	-	-	SYM
ajst-2162	15	25	4	4	NUM
ajst-2162	15	26	]	]	PUNCT
ajst-2162	15	27	.	.	PUNCT
ajst-2162	16	1	at	at	ADP
ajst-2162	16	2	present	present	ADJ
ajst-2162	16	3	,	,	PUNCT
ajst-2162	16	4	the	the	DET
ajst-2162	16	5	main	main	ADJ
ajst-2162	16	6	method	method	NOUN
ajst-2162	16	7	to	to	PART
ajst-2162	16	8	exploit	exploit	VERB
ajst-2162	16	9	shale	shale	NOUN
ajst-2162	16	10	gas	gas	NOUN
ajst-2162	16	11	is	be	AUX
ajst-2162	16	12	multi	multi	ADJ
ajst-2162	16	13	-	-	ADJ
ajst-2162	16	14	stage	stage	ADJ
ajst-2162	16	15	fracturing	fracturing	NOUN
ajst-2162	16	16	technology	technology	NOUN
ajst-2162	16	17	for	for	ADP
ajst-2162	16	18	horizontal	horizontal	ADJ
ajst-2162	16	19	wells	well	NOUN
ajst-2162	16	20	.	.	PUNCT
ajst-2162	17	1	due	due	ADP
ajst-2162	17	2	to	to	ADP
ajst-2162	17	3	the	the	DET
ajst-2162	17	4	long	long	ADJ
ajst-2162	17	5	wellbore	wellbore	NOUN
ajst-2162	17	6	of	of	ADP
ajst-2162	17	7	horizontal	horizontal	ADJ
ajst-2162	17	8	wells	well	NOUN
ajst-2162	17	9	,	,	PUNCT
ajst-2162	17	10	casing	case	VERB
ajst-2162	17	11	deformation	deformation	NOUN
ajst-2162	17	12	is	be	AUX
ajst-2162	17	13	very	very	ADV
ajst-2162	17	14	easy	easy	ADJ
ajst-2162	17	15	to	to	PART
ajst-2162	17	16	occur	occur	VERB
ajst-2162	17	17	during	during	ADP
ajst-2162	17	18	multi	multi	ADJ
ajst-2162	17	19	-	-	ADJ
ajst-2162	17	20	stage	stage	ADJ
ajst-2162	17	21	fracturing	fracturing	NOUN
ajst-2162	17	22	.	.	PUNCT
ajst-2162	18	1	in	in	ADP
ajst-2162	18	2	addition	addition	NOUN
ajst-2162	18	3	,	,	PUNCT
ajst-2162	18	4	hydraulic	hydraulic	ADJ
ajst-2162	18	5	fracturing	fracturing	NOUN
ajst-2162	18	6	technology	technology	NOUN
ajst-2162	18	7	has	have	VERB
ajst-2162	18	8	great	great	ADJ
ajst-2162	18	9	limitations	limitation	NOUN
ajst-2162	18	10	when	when	SCONJ
ajst-2162	18	11	facing	face	VERB
ajst-2162	18	12	wells	well	NOUN
ajst-2162	18	13	with	with	ADP
ajst-2162	18	14	complex	complex	ADJ
ajst-2162	18	15	structures	structure	NOUN
ajst-2162	18	16	and	and	CCONJ
ajst-2162	18	17	complex	complex	ADJ
ajst-2162	18	18	formations	formation	NOUN
ajst-2162	18	19	[	[	X
ajst-2162	18	20	5	5	NUM
ajst-2162	18	21	-	-	SYM
ajst-2162	18	22	9	9	NUM
ajst-2162	18	23	]	]	PUNCT
ajst-2162	18	24	in	in	ADP
ajst-2162	18	25	recent	recent	ADJ
ajst-2162	18	26	years	year	NOUN
ajst-2162	18	27	,	,	PUNCT
ajst-2162	18	28	the	the	DET
ajst-2162	18	29	open	open	ADJ
ajst-2162	18	30	hole	hole	NOUN
ajst-2162	18	31	staged	stage	VERB
ajst-2162	18	32	fracturing	fracturing	NOUN
ajst-2162	18	33	technology	technology	NOUN
ajst-2162	18	34	for	for	ADP
ajst-2162	18	35	horizontal	horizontal	ADJ
ajst-2162	18	36	wells	well	NOUN
ajst-2162	18	37	is	be	AUX
ajst-2162	18	38	a	a	DET
ajst-2162	18	39	new	new	ADJ
ajst-2162	18	40	technology	technology	NOUN
ajst-2162	18	41	to	to	PART
ajst-2162	18	42	exploit	exploit	VERB
ajst-2162	18	43	unconventional	unconventional	ADJ
ajst-2162	18	44	oil	oil	NOUN
ajst-2162	18	45	and	and	CCONJ
ajst-2162	18	46	gas	gas	NOUN
ajst-2162	18	47	fields	field	NOUN
ajst-2162	18	48	,	,	PUNCT
ajst-2162	18	49	which	which	PRON
ajst-2162	18	50	has	have	VERB
ajst-2162	18	51	broad	broad	ADJ
ajst-2162	18	52	application	application	NOUN
ajst-2162	18	53	prospects	prospect	NOUN
ajst-2162	18	54	and	and	CCONJ
ajst-2162	18	55	economic	economic	ADJ
ajst-2162	18	56	benefits	benefit	NOUN
ajst-2162	18	57	.	.	PUNCT
ajst-2162	19	1	it	it	PRON
ajst-2162	19	2	is	be	AUX
ajst-2162	19	3	mainly	mainly	ADV
ajst-2162	19	4	composed	compose	VERB
ajst-2162	19	5	of	of	ADP
ajst-2162	19	6	multiple	multiple	ADJ
ajst-2162	19	7	groups	group	NOUN
ajst-2162	19	8	of	of	ADP
ajst-2162	19	9	open	open	ADJ
ajst-2162	19	10	hole	hole	NOUN
ajst-2162	19	11	packers	packer	NOUN
ajst-2162	19	12	and	and	CCONJ
ajst-2162	19	13	multistage	multistage	NOUN
ajst-2162	19	14	fracturing	fracture	VERB
ajst-2162	19	15	sliding	slide	VERB
ajst-2162	19	16	sleeves	sleeve	NOUN
ajst-2162	19	17	,	,	PUNCT
ajst-2162	19	18	which	which	DET
ajst-2162	19	19	conduct	conduct	NOUN
ajst-2162	19	20	staged	stage	VERB
ajst-2162	19	21	fracturing	fracture	VERB
ajst-2162	19	22	for	for	ADP
ajst-2162	19	23	low	low	ADJ
ajst-2162	19	24	permeability	permeability	NOUN
ajst-2162	19	25	long	long	ADJ
ajst-2162	19	26	horizontal	horizontal	ADJ
ajst-2162	19	27	sections	section	NOUN
ajst-2162	19	28	[	[	X
ajst-2162	19	29	1016	1016	NUM
ajst-2162	19	30	]	]	PUNCT
ajst-2162	19	31	.	.	PUNCT
ajst-2162	20	1	in	in	ADP
ajst-2162	20	2	the	the	DET
ajst-2162	20	3	open	open	ADJ
ajst-2162	20	4	hole	hole	NOUN
ajst-2162	20	5	staged	stage	VERB
ajst-2162	20	6	fracturing	fracturing	NOUN
ajst-2162	20	7	process	process	NOUN
ajst-2162	20	8	,	,	PUNCT
ajst-2162	20	9	the	the	DET
ajst-2162	20	10	sealing	sealing	NOUN
ajst-2162	20	11	performance	performance	NOUN
ajst-2162	20	12	of	of	ADP
ajst-2162	20	13	the	the	DET
ajst-2162	20	14	fracturing	fracturing	NOUN
ajst-2162	20	15	sliding	slide	VERB
ajst-2162	20	16	sleeve	sleeve	NOUN
ajst-2162	20	17	directly	directly	ADV
ajst-2162	20	18	determines	determine	VERB
ajst-2162	20	19	the	the	DET
ajst-2162	20	20	success	success	NOUN
ajst-2162	20	21	or	or	CCONJ
ajst-2162	20	22	failure	failure	NOUN
ajst-2162	20	23	of	of	ADP
ajst-2162	20	24	the	the	DET
ajst-2162	20	25	fracturing	fracturing	NOUN
ajst-2162	20	26	,	,	PUNCT
ajst-2162	20	27	and	and	CCONJ
ajst-2162	20	28	the	the	DET
ajst-2162	20	29	ball	ball	NOUN
ajst-2162	20	30	seat	seat	NOUN
ajst-2162	20	31	is	be	AUX
ajst-2162	20	32	the	the	DET
ajst-2162	20	33	key	key	ADJ
ajst-2162	20	34	component	component	NOUN
ajst-2162	20	35	directly	directly	ADV
ajst-2162	20	36	involved	involve	VERB
ajst-2162	20	37	in	in	ADP
ajst-2162	20	38	the	the	DET
ajst-2162	20	39	fracturing	fracturing	NOUN
ajst-2162	20	40	sealing	sealing	NOUN
ajst-2162	20	41	.	.	PUNCT
ajst-2162	21	1	the	the	DET
ajst-2162	21	2	failure	failure	NOUN
ajst-2162	21	3	of	of	ADP
ajst-2162	21	4	the	the	DET
ajst-2162	21	5	ball	ball	NOUN
ajst-2162	21	6	seat	seat	NOUN
ajst-2162	21	7	seal	seal	NOUN
ajst-2162	21	8	may	may	AUX
ajst-2162	21	9	lead	lead	VERB
ajst-2162	21	10	to	to	ADP
ajst-2162	21	11	the	the	DET
ajst-2162	21	12	failure	failure	NOUN
ajst-2162	21	13	of	of	ADP
ajst-2162	21	14	the	the	DET
ajst-2162	21	15	entire	entire	ADJ
ajst-2162	21	16	multi	multi	ADJ
ajst-2162	21	17	-	-	ADJ
ajst-2162	21	18	stage	stage	ADJ
ajst-2162	21	19	fracturing	fracturing	NOUN
ajst-2162	21	20	.	.	PUNCT
ajst-2162	22	1	there	there	PRON
ajst-2162	22	2	are	be	VERB
ajst-2162	22	3	two	two	NUM
ajst-2162	22	4	main	main	ADJ
ajst-2162	22	5	reasons	reason	NOUN
ajst-2162	22	6	for	for	ADP
ajst-2162	22	7	the	the	DET
ajst-2162	22	8	seal	seal	NOUN
ajst-2162	22	9	failure	failure	NOUN
ajst-2162	22	10	of	of	ADP
ajst-2162	22	11	the	the	DET
ajst-2162	22	12	ball	ball	NOUN
ajst-2162	22	13	seat	seat	NOUN
ajst-2162	22	14	:	:	PUNCT
ajst-2162	22	15	one	one	NUM
ajst-2162	22	16	is	be	AUX
ajst-2162	22	17	the	the	DET
ajst-2162	22	18	plastic	plastic	ADJ
ajst-2162	22	19	deformation	deformation	NOUN
ajst-2162	22	20	of	of	ADP
ajst-2162	22	21	the	the	DET
ajst-2162	22	22	ball	ball	NOUN
ajst-2162	22	23	seat	seat	NOUN
ajst-2162	22	24	caused	cause	VERB
ajst-2162	22	25	by	by	ADP
ajst-2162	22	26	excessive	excessive	ADJ
ajst-2162	22	27	stress	stress	NOUN
ajst-2162	22	28	,	,	PUNCT
ajst-2162	22	29	which	which	PRON
ajst-2162	22	30	leads	lead	VERB
ajst-2162	22	31	to	to	ADP
ajst-2162	22	32	the	the	DET
ajst-2162	22	33	seal	seal	NOUN
ajst-2162	22	34	failure	failure	NOUN
ajst-2162	22	35	;	;	PUNCT
ajst-2162	22	36	second	second	X
ajst-2162	22	37	,	,	PUNCT
ajst-2162	22	38	the	the	DET
ajst-2162	22	39	fracturing	fracture	VERB
ajst-2162	22	40	fluid	fluid	NOUN
ajst-2162	22	41	containing	contain	VERB
ajst-2162	22	42	proppant	proppant	NOUN
ajst-2162	22	43	continuously	continuously	ADV
ajst-2162	22	44	impacted	impact	VERB
ajst-2162	22	45	the	the	DET
ajst-2162	22	46	conical	conical	ADJ
ajst-2162	22	47	surface	surface	NOUN
ajst-2162	22	48	of	of	ADP
ajst-2162	22	49	the	the	DET
ajst-2162	22	50	ball	ball	NOUN
ajst-2162	22	51	socket	socket	NOUN
ajst-2162	22	52	,	,	PUNCT
ajst-2162	22	53	causing	cause	VERB
ajst-2162	22	54	erosion	erosion	NOUN
ajst-2162	22	55	wear	wear	NOUN
ajst-2162	22	56	of	of	ADP
ajst-2162	22	57	the	the	DET
ajst-2162	22	58	conical	conical	ADJ
ajst-2162	22	59	surface	surface	NOUN
ajst-2162	22	60	of	of	ADP
ajst-2162	22	61	the	the	DET
ajst-2162	22	62	ball	ball	NOUN
ajst-2162	22	63	socket	socket	NOUN
ajst-2162	22	64	[	[	X
ajst-2162	22	65	17	17	NUM
ajst-2162	22	66	]	]	PUNCT
ajst-2162	22	67	.	.	PUNCT
ajst-2162	23	1	among	among	ADP
ajst-2162	23	2	them	they	PRON
ajst-2162	23	3	,	,	PUNCT
ajst-2162	23	4	the	the	DET
ajst-2162	23	5	erosion	erosion	NOUN
ajst-2162	23	6	of	of	ADP
ajst-2162	23	7	fracturing	fracture	VERB
ajst-2162	23	8	fluid	fluid	NOUN
ajst-2162	23	9	on	on	ADP
ajst-2162	23	10	the	the	DET
ajst-2162	23	11	cone	cone	NOUN
ajst-2162	23	12	surface	surface	NOUN
ajst-2162	23	13	of	of	ADP
ajst-2162	23	14	the	the	DET
ajst-2162	23	15	ball	ball	NOUN
ajst-2162	23	16	seat	seat	NOUN
ajst-2162	23	17	is	be	AUX
ajst-2162	23	18	the	the	DET
ajst-2162	23	19	main	main	ADJ
ajst-2162	23	20	reason	reason	NOUN
ajst-2162	23	21	for	for	ADP
ajst-2162	23	22	the	the	DET
ajst-2162	23	23	failure	failure	NOUN
ajst-2162	23	24	of	of	ADP
ajst-2162	23	25	the	the	DET
ajst-2162	23	26	ball	ball	NOUN
ajst-2162	23	27	seat	seat	NOUN
ajst-2162	23	28	[	[	X
ajst-2162	23	29	18	18	NUM
ajst-2162	23	30	]	]	PUNCT
ajst-2162	23	31	.	.	PUNCT
ajst-2162	24	1	from	from	ADP
ajst-2162	24	2	these	these	DET
ajst-2162	24	3	two	two	NUM
ajst-2162	24	4	aspects	aspect	NOUN
ajst-2162	24	5	,	,	PUNCT
ajst-2162	24	6	this	this	DET
ajst-2162	24	7	paper	paper	NOUN
ajst-2162	24	8	uses	use	VERB
ajst-2162	24	9	ansys	ansys	PROPN
ajst-2162	24	10	finite	finite	PROPN
ajst-2162	24	11	element	element	PROPN
ajst-2162	24	12	simulation	simulation	NOUN
ajst-2162	24	13	and	and	CCONJ
ajst-2162	24	14	fluent	fluent	ADJ
ajst-2162	24	15	erosion	erosion	NOUN
ajst-2162	24	16	analysis	analysis	NOUN
ajst-2162	24	17	to	to	PART
ajst-2162	24	18	simulate	simulate	VERB
ajst-2162	24	19	the	the	DET
ajst-2162	24	20	working	work	VERB
ajst-2162	24	21	conditions	condition	NOUN
ajst-2162	24	22	under	under	ADP
ajst-2162	24	23	different	different	ADJ
ajst-2162	24	24	ball	ball	NOUN
ajst-2162	24	25	seat	seat	NOUN
ajst-2162	24	26	cone	cone	NOUN
ajst-2162	24	27	angles	angle	NOUN
ajst-2162	24	28	.	.	PUNCT
ajst-2162	25	1	based	base	VERB
ajst-2162	25	2	on	on	ADP
ajst-2162	25	3	the	the	DET
ajst-2162	25	4	structural	structural	ADJ
ajst-2162	25	5	data	datum	NOUN
ajst-2162	25	6	of	of	ADP
ajst-2162	25	7	the	the	DET
ajst-2162	25	8	sliding	slide	VERB
ajst-2162	25	9	sleeve	sleeve	NOUN
ajst-2162	25	10	structure	structure	NOUN
ajst-2162	25	11	in	in	ADP
ajst-2162	25	12	the	the	DET
ajst-2162	25	13	subject	subject	NOUN
ajst-2162	25	14	,	,	PUNCT
ajst-2162	25	15	in	in	ADP
ajst-2162	25	16	this	this	DET
ajst-2162	25	17	design	design	NOUN
ajst-2162	25	18	,	,	PUNCT
ajst-2162	25	19	the	the	DET
ajst-2162	25	20	diameter	diameter	NOUN
ajst-2162	25	21	of	of	ADP
ajst-2162	25	22	the	the	DET
ajst-2162	25	23	fracturing	fracturing	NOUN
ajst-2162	25	24	ball	ball	NOUN
ajst-2162	25	25	d=84.5	d=84.5	PROPN
ajst-2162	25	26	mm	mm	PROPN
ajst-2162	25	27	,	,	PUNCT
ajst-2162	25	28	the	the	DET
ajst-2162	25	29	design	design	NOUN
ajst-2162	25	30	inner	inner	ADJ
ajst-2162	25	31	diameter	diameter	NOUN
ajst-2162	25	32	of	of	ADP
ajst-2162	25	33	the	the	DET
ajst-2162	25	34	ball	ball	NOUN
ajst-2162	25	35	seat	seat	NOUN
ajst-2162	25	36	after	after	ADP
ajst-2162	25	37	shrinkage	shrinkage	NOUN
ajst-2162	25	38	is	be	AUX
ajst-2162	25	39	d=76.5	d=76.5	PROPN
ajst-2162	25	40	mm	mm	PROPN
ajst-2162	25	41	,	,	PUNCT
ajst-2162	25	42	and	and	CCONJ
ajst-2162	25	43	its	its	PRON
ajst-2162	25	44	diameter	diameter	NOUN
ajst-2162	25	45	difference	difference	NOUN
ajst-2162	25	46	∆=d	∆=d	PROPN
ajst-2162	25	47	-	-	PUNCT
ajst-2162	25	48	d=8	d=8	NOUN
ajst-2162	25	49	mm	mm	NOUN
ajst-2162	25	50	.	.	PUNCT
ajst-2162	26	1	with	with	ADP
ajst-2162	26	2	this	this	DET
ajst-2162	26	3	parameter	parameter	NOUN
ajst-2162	26	4	,	,	PUNCT
ajst-2162	26	5	the	the	DET
ajst-2162	26	6	optimal	optimal	ADJ
ajst-2162	26	7	fracturing	fracturing	NOUN
ajst-2162	26	8	ball	ball	NOUN
ajst-2162	26	9	seat	seat	NOUN
ajst-2162	26	10	cone	cone	NOUN
ajst-2162	26	11	angle	angle	NOUN
ajst-2162	26	12	is	be	AUX
ajst-2162	26	13	studied	study	VERB
ajst-2162	26	14	.	.	PUNCT
ajst-2162	27	1	2	2	X
ajst-2162	27	2	.	.	X
ajst-2162	27	3	pressure	pressure	NOUN
ajst-2162	27	4	bearing	bear	VERB
ajst-2162	27	5	analysis	analysis	NOUN
ajst-2162	27	6	of	of	ADP
ajst-2162	27	7	ball	ball	NOUN
ajst-2162	27	8	seat	seat	NOUN
ajst-2162	27	9	structure	structure	NOUN
ajst-2162	27	10	during	during	ADP
ajst-2162	27	11	the	the	DET
ajst-2162	27	12	whole	whole	ADJ
ajst-2162	27	13	fracturing	fracturing	NOUN
ajst-2162	27	14	process	process	NOUN
ajst-2162	27	15	of	of	ADP
ajst-2162	27	16	fracturing	fracture	VERB
ajst-2162	27	17	sliding	slide	VERB
ajst-2162	27	18	sleeve	sleeve	NOUN
ajst-2162	27	19	,	,	PUNCT
ajst-2162	27	20	the	the	DET
ajst-2162	27	21	most	most	ADV
ajst-2162	27	22	severe	severe	ADJ
ajst-2162	27	23	working	working	NOUN
ajst-2162	27	24	condition	condition	NOUN
ajst-2162	27	25	is	be	AUX
ajst-2162	27	26	that	that	SCONJ
ajst-2162	27	27	the	the	DET
ajst-2162	27	28	fracturing	fracturing	NOUN
ajst-2162	27	29	ball	ball	NOUN
ajst-2162	27	30	is	be	AUX
ajst-2162	27	31	set	set	VERB
ajst-2162	27	32	on	on	ADP
ajst-2162	27	33	the	the	DET
ajst-2162	27	34	ball	ball	NOUN
ajst-2162	27	35	seat	seat	NOUN
ajst-2162	27	36	and	and	CCONJ
ajst-2162	27	37	the	the	DET
ajst-2162	27	38	fracturing	fracturing	NOUN
ajst-2162	27	39	fluid	fluid	NOUN
ajst-2162	27	40	is	be	AUX
ajst-2162	27	41	used	use	VERB
ajst-2162	27	42	to	to	PART
ajst-2162	27	43	fracturing	fracture	VERB
ajst-2162	27	44	the	the	DET
ajst-2162	27	45	formation	formation	NOUN
ajst-2162	27	46	.	.	PUNCT
ajst-2162	28	1	at	at	ADP
ajst-2162	28	2	this	this	DET
ajst-2162	28	3	time	time	NOUN
ajst-2162	28	4	,	,	PUNCT
ajst-2162	28	5	the	the	DET
ajst-2162	28	6	differential	differential	ADJ
ajst-2162	28	7	pressure	pressure	NOUN
ajst-2162	28	8	between	between	ADP
ajst-2162	28	9	the	the	DET
ajst-2162	28	10	upper	upper	ADJ
ajst-2162	28	11	and	and	CCONJ
ajst-2162	28	12	lower	low	ADJ
ajst-2162	28	13	parts	part	NOUN
ajst-2162	28	14	of	of	ADP
ajst-2162	28	15	the	the	DET
ajst-2162	28	16	ball	ball	NOUN
ajst-2162	28	17	socket	socket	NOUN
ajst-2162	28	18	reaches	reach	VERB
ajst-2162	28	19	the	the	DET
ajst-2162	28	20	maximum	maximum	ADJ
ajst-2162	28	21	value	value	NOUN
ajst-2162	28	22	.	.	PUNCT
ajst-2162	29	1	to	to	PART
ajst-2162	29	2	ensure	ensure	VERB
ajst-2162	29	3	that	that	SCONJ
ajst-2162	29	4	the	the	DET
ajst-2162	29	5	fracturing	fracture	VERB
ajst-2162	29	6	sliding	slide	VERB
ajst-2162	29	7	sleeve	sleeve	NOUN
ajst-2162	29	8	can	can	AUX
ajst-2162	29	9	complete	complete	VERB
ajst-2162	29	10	the	the	DET
ajst-2162	29	11	sealing	sealing	NOUN
ajst-2162	29	12	work	work	NOUN
ajst-2162	29	13	,	,	PUNCT
ajst-2162	29	14	it	it	PRON
ajst-2162	29	15	is	be	AUX
ajst-2162	29	16	necessary	necessary	ADJ
ajst-2162	29	17	to	to	PART
ajst-2162	29	18	make	make	VERB
ajst-2162	29	19	a	a	DET
ajst-2162	29	20	specific	specific	ADJ
ajst-2162	29	21	analysis	analysis	NOUN
ajst-2162	29	22	of	of	ADP
ajst-2162	29	23	the	the	DET
ajst-2162	29	24	working	work	VERB
ajst-2162	29	25	conditions	condition	NOUN
ajst-2162	29	26	of	of	ADP
ajst-2162	29	27	the	the	DET
ajst-2162	29	28	ball	ball	NOUN
ajst-2162	29	29	socket	socket	NOUN
ajst-2162	29	30	.	.	PUNCT
ajst-2162	30	1	the	the	DET
ajst-2162	30	2	correct	correct	ADJ
ajst-2162	30	3	setting	setting	NOUN
ajst-2162	30	4	of	of	ADP
ajst-2162	30	5	fracturing	fracture	VERB
ajst-2162	30	6	ball	ball	NOUN
ajst-2162	30	7	must	must	AUX
ajst-2162	30	8	meet	meet	VERB
ajst-2162	30	9	the	the	DET
ajst-2162	30	10	following	follow	VERB
ajst-2162	30	11	three	three	NUM
ajst-2162	30	12	requirements	requirement	NOUN
ajst-2162	30	13	:	:	PUNCT
ajst-2162	30	14	the	the	DET
ajst-2162	30	15	fracturing	fracturing	NOUN
ajst-2162	30	16	ball	ball	NOUN
ajst-2162	30	17	must	must	AUX
ajst-2162	30	18	be	be	AUX
ajst-2162	30	19	seated	seat	VERB
ajst-2162	30	20	on	on	ADP
ajst-2162	30	21	the	the	DET
ajst-2162	30	22	conical	conical	ADJ
ajst-2162	30	23	surface	surface	NOUN
ajst-2162	30	24	of	of	ADP
ajst-2162	30	25	the	the	DET
ajst-2162	30	26	ball	ball	NOUN
ajst-2162	30	27	seat	seat	NOUN
ajst-2162	30	28	;	;	PUNCT
ajst-2162	30	29	the	the	DET
ajst-2162	30	30	ball	ball	NOUN
ajst-2162	30	31	seat	seat	NOUN
ajst-2162	30	32	shall	shall	AUX
ajst-2162	30	33	meet	meet	VERB
ajst-2162	30	34	the	the	DET
ajst-2162	30	35	structural	structural	ADJ
ajst-2162	30	36	strength	strength	NOUN
ajst-2162	30	37	requirements	requirement	NOUN
ajst-2162	30	38	;	;	PUNCT
ajst-2162	30	39	the	the	DET
ajst-2162	30	40	fracturing	fracturing	NOUN
ajst-2162	30	41	ball	ball	NOUN
ajst-2162	30	42	shall	shall	AUX
ajst-2162	30	43	not	not	PART
ajst-2162	30	44	be	be	AUX
ajst-2162	30	45	self	self	NOUN
ajst-2162	30	46	-	-	PUNCT
ajst-2162	30	47	locking	locking	NOUN
ajst-2162	30	48	with	with	ADP
ajst-2162	30	49	the	the	DET
ajst-2162	30	50	ball	ball	NOUN
ajst-2162	30	51	socket	socket	NOUN
ajst-2162	30	52	.	.	PUNCT
ajst-2162	31	1	2.1	2.1	NUM
ajst-2162	31	2	.	.	PUNCT
ajst-2162	32	1	ensure	ensure	VERB
ajst-2162	32	2	that	that	SCONJ
ajst-2162	32	3	the	the	DET
ajst-2162	32	4	fracturing	fracturing	NOUN
ajst-2162	32	5	ball	ball	NOUN
ajst-2162	32	6	is	be	AUX
ajst-2162	32	7	seated	seat	VERB
ajst-2162	32	8	on	on	ADP
ajst-2162	32	9	the	the	DET
ajst-2162	32	10	conical	conical	ADJ
ajst-2162	32	11	surface	surface	NOUN
ajst-2162	32	12	of	of	ADP
ajst-2162	32	13	the	the	DET
ajst-2162	32	14	ball	ball	NOUN
ajst-2162	32	15	seat	seat	NOUN
ajst-2162	32	16	according	accord	VERB
ajst-2162	32	17	to	to	ADP
ajst-2162	32	18	the	the	DET
ajst-2162	32	19	operation	operation	NOUN
ajst-2162	32	20	of	of	ADP
ajst-2162	32	21	the	the	DET
ajst-2162	32	22	ball	ball	NOUN
ajst-2162	32	23	socket	socket	NOUN
ajst-2162	32	24	during	during	ADP
ajst-2162	32	25	fracturing	fracture	VERB
ajst-2162	32	26	,	,	PUNCT
ajst-2162	32	27	the	the	DET
ajst-2162	32	28	contact	contact	NOUN
ajst-2162	32	29	relationship	relationship	NOUN
ajst-2162	32	30	between	between	ADP
ajst-2162	32	31	the	the	DET
ajst-2162	32	32	fracturing	fracturing	NOUN
ajst-2162	32	33	ball	ball	NOUN
ajst-2162	32	34	and	and	CCONJ
ajst-2162	32	35	the	the	DET
ajst-2162	32	36	ball	ball	NOUN
ajst-2162	32	37	socket	socket	NOUN
ajst-2162	32	38	is	be	AUX
ajst-2162	32	39	shown	show	VERB
ajst-2162	32	40	in	in	ADP
ajst-2162	32	41	figure	figure	NOUN
ajst-2162	32	42	1	1	NUM
ajst-2162	32	43	:	:	SYM
ajst-2162	32	44	162	162	NUM
ajst-2162	32	45	figure	figure	NOUN
ajst-2162	32	46	1	1	NUM
ajst-2162	32	47	.	.	PUNCT
ajst-2162	32	48	fracturing	fracture	VERB
ajst-2162	32	49	ball	ball	NOUN
ajst-2162	32	50	set	set	VERB
ajst-2162	32	51	on	on	ADP
ajst-2162	32	52	ball	ball	NOUN
ajst-2162	32	53	seat	seat	NOUN
ajst-2162	32	54	to	to	PART
ajst-2162	32	55	seat	seat	VERB
ajst-2162	32	56	the	the	DET
ajst-2162	32	57	fracturing	fracturing	NOUN
ajst-2162	32	58	ball	ball	NOUN
ajst-2162	32	59	on	on	ADP
ajst-2162	32	60	the	the	DET
ajst-2162	32	61	conical	conical	ADJ
ajst-2162	32	62	surface	surface	NOUN
ajst-2162	32	63	of	of	ADP
ajst-2162	32	64	the	the	DET
ajst-2162	32	65	ball	ball	NOUN
ajst-2162	32	66	seat	seat	NOUN
ajst-2162	32	67	:	:	PUNCT
ajst-2162	32	68	2	2	NUM
ajst-2162	32	69	cosr	cosr	NOUN
ajst-2162	32	70	d	d	X
ajst-2162	32	71	d	d	PROPN
ajst-2162	32	72	＞	＞	NUM
ajst-2162	32	73	(	(	PUNCT
ajst-2162	32	74	1	1	NUM
ajst-2162	32	75	)	)	PUNCT
ajst-2162	32	76	where	where	SCONJ
ajst-2162	32	77	,	,	PUNCT
ajst-2162	32	78	d	d	X
ajst-2162	32	79	is	be	AUX
ajst-2162	32	80	the	the	DET
ajst-2162	32	81	diameter	diameter	NOUN
ajst-2162	32	82	of	of	ADP
ajst-2162	32	83	sealing	seal	VERB
ajst-2162	32	84	ball	ball	NOUN
ajst-2162	32	85	,	,	PUNCT
ajst-2162	32	86	84.5	84.5	NUM
ajst-2162	32	87	mm	mm	NOUN
ajst-2162	32	88	;	;	PUNCT
ajst-2162	32	89	d	d	X
ajst-2162	32	90	is	be	AUX
ajst-2162	32	91	the	the	DET
ajst-2162	32	92	shrinkage	shrinkage	NOUN
ajst-2162	32	93	diameter	diameter	NOUN
ajst-2162	32	94	of	of	ADP
ajst-2162	32	95	the	the	DET
ajst-2162	32	96	ball	ball	NOUN
ajst-2162	32	97	seat	seat	NOUN
ajst-2162	32	98	,	,	PUNCT
ajst-2162	32	99	taking	take	VERB
ajst-2162	32	100	76.5	76.5	NUM
ajst-2162	32	101	mm	mm	NOUN
ajst-2162	32	102	;	;	PUNCT
ajst-2162	32	103	r	r	NOUN
ajst-2162	32	104	is	be	AUX
ajst-2162	32	105	the	the	DET
ajst-2162	32	106	radius	radius	NOUN
ajst-2162	32	107	of	of	ADP
ajst-2162	32	108	the	the	DET
ajst-2162	32	109	fracturing	fracturing	NOUN
ajst-2162	32	110	ball	ball	NOUN
ajst-2162	32	111	section	section	NOUN
ajst-2162	32	112	on	on	ADP
ajst-2162	32	113	the	the	DET
ajst-2162	32	114	setting	set	VERB
ajst-2162	32	115	section	section	NOUN
ajst-2162	32	116	.	.	PUNCT
ajst-2162	33	1	the	the	DET
ajst-2162	33	2	taper	taper	NOUN
ajst-2162	33	3	angle	angle	NOUN
ajst-2162	33	4	of	of	ADP
ajst-2162	33	5	the	the	DET
ajst-2162	33	6	ball	ball	NOUN
ajst-2162	33	7	seat	seat	NOUN
ajst-2162	33	8	can	can	AUX
ajst-2162	33	9	be	be	AUX
ajst-2162	33	10	calculated	calculate	VERB
ajst-2162	33	11	according	accord	VERB
ajst-2162	33	12	to	to	ADP
ajst-2162	33	13	the	the	DET
ajst-2162	33	14	above	above	ADJ
ajst-2162	33	15	formula	formula	NOUN
ajst-2162	33	16	α	α	X
ajst-2162	33	17	<	<	X
ajst-2162	33	18	arccos	arccos	X
ajst-2162	33	19	d	d	PROPN
ajst-2162	33	20	/	/	SYM
ajst-2162	33	21	d=25.13	d=25.13	NOUN
ajst-2162	33	22	°	°	NOUN
ajst-2162	33	23	.	.	PUNCT
ajst-2162	34	1	2.2	2.2	NUM
ajst-2162	34	2	.	.	PUNCT
ajst-2162	35	1	ensure	ensure	VERB
ajst-2162	35	2	that	that	SCONJ
ajst-2162	35	3	the	the	DET
ajst-2162	35	4	fracturing	fracturing	NOUN
ajst-2162	35	5	ball	ball	NOUN
ajst-2162	35	6	does	do	AUX
ajst-2162	35	7	not	not	PART
ajst-2162	35	8	lock	lock	VERB
ajst-2162	35	9	with	with	ADP
ajst-2162	35	10	the	the	DET
ajst-2162	35	11	ball	ball	NOUN
ajst-2162	35	12	socket	socket	NOUN
ajst-2162	35	13	after	after	ADP
ajst-2162	35	14	fracturing	fracture	VERB
ajst-2162	35	15	,	,	PUNCT
ajst-2162	35	16	the	the	DET
ajst-2162	35	17	fracturing	fracturing	NOUN
ajst-2162	35	18	ball	ball	NOUN
ajst-2162	35	19	needs	need	VERB
ajst-2162	35	20	to	to	PART
ajst-2162	35	21	disengage	disengage	VERB
ajst-2162	35	22	from	from	ADP
ajst-2162	35	23	the	the	DET
ajst-2162	35	24	ball	ball	NOUN
ajst-2162	35	25	seat	seat	NOUN
ajst-2162	35	26	and	and	CCONJ
ajst-2162	35	27	automatically	automatically	ADV
ajst-2162	35	28	discharge	discharge	VERB
ajst-2162	35	29	the	the	DET
ajst-2162	35	30	sliding	slide	VERB
ajst-2162	35	31	sleeve	sleeve	NOUN
ajst-2162	35	32	under	under	ADP
ajst-2162	35	33	the	the	DET
ajst-2162	35	34	action	action	NOUN
ajst-2162	35	35	of	of	ADP
ajst-2162	35	36	formation	formation	NOUN
ajst-2162	35	37	pressure	pressure	NOUN
ajst-2162	35	38	p.	p.	NOUN
ajst-2162	35	39	the	the	DET
ajst-2162	35	40	fracturing	fracturing	NOUN
ajst-2162	35	41	ball	ball	NOUN
ajst-2162	35	42	backflow	backflow	NOUN
ajst-2162	35	43	is	be	AUX
ajst-2162	35	44	divided	divide	VERB
ajst-2162	35	45	into	into	ADP
ajst-2162	35	46	two	two	NUM
ajst-2162	35	47	stages	stage	NOUN
ajst-2162	35	48	.	.	PUNCT
ajst-2162	36	1	first	first	ADV
ajst-2162	36	2	,	,	PUNCT
ajst-2162	36	3	after	after	SCONJ
ajst-2162	36	4	the	the	DET
ajst-2162	36	5	fracturing	fracture	VERB
ajst-2162	36	6	fluid	fluid	NOUN
ajst-2162	36	7	pressure	pressure	NOUN
ajst-2162	36	8	is	be	AUX
ajst-2162	36	9	removed	remove	VERB
ajst-2162	36	10	,	,	PUNCT
ajst-2162	36	11	the	the	DET
ajst-2162	36	12	fracturing	fracturing	NOUN
ajst-2162	36	13	ball	ball	NOUN
ajst-2162	36	14	automatically	automatically	ADV
ajst-2162	36	15	disengages	disengage	VERB
ajst-2162	36	16	from	from	ADP
ajst-2162	36	17	the	the	DET
ajst-2162	36	18	ball	ball	NOUN
ajst-2162	36	19	socket	socket	NOUN
ajst-2162	36	20	;	;	PUNCT
ajst-2162	36	21	then	then	ADV
ajst-2162	36	22	the	the	DET
ajst-2162	36	23	fracturing	fracturing	NOUN
ajst-2162	36	24	ball	ball	NOUN
ajst-2162	36	25	reversely	reversely	ADV
ajst-2162	36	26	discharges	discharge	VERB
ajst-2162	36	27	the	the	DET
ajst-2162	36	28	sliding	slide	VERB
ajst-2162	36	29	sleeve	sleeve	NOUN
ajst-2162	36	30	under	under	ADP
ajst-2162	36	31	the	the	DET
ajst-2162	36	32	formation	formation	NOUN
ajst-2162	36	33	pressure	pressure	NOUN
ajst-2162	36	34	.	.	PUNCT
ajst-2162	37	1	in	in	ADP
ajst-2162	37	2	the	the	DET
ajst-2162	37	3	first	first	ADJ
ajst-2162	37	4	stage	stage	NOUN
ajst-2162	37	5	,	,	PUNCT
ajst-2162	37	6	the	the	DET
ajst-2162	37	7	upper	upper	ADJ
ajst-2162	37	8	pressure	pressure	NOUN
ajst-2162	37	9	of	of	ADP
ajst-2162	37	10	the	the	DET
ajst-2162	37	11	fracturing	fracturing	NOUN
ajst-2162	37	12	ball	ball	NOUN
ajst-2162	37	13	disappears	disappear	VERB
ajst-2162	37	14	,	,	PUNCT
ajst-2162	37	15	the	the	DET
ajst-2162	37	16	fracturing	fracturing	NOUN
ajst-2162	37	17	ball	ball	NOUN
ajst-2162	37	18	breaks	break	VERB
ajst-2162	37	19	away	away	ADV
ajst-2162	37	20	from	from	ADP
ajst-2162	37	21	the	the	DET
ajst-2162	37	22	socket	socket	NOUN
ajst-2162	37	23	by	by	ADP
ajst-2162	37	24	elastic	elastic	ADJ
ajst-2162	37	25	deformation	deformation	NOUN
ajst-2162	37	26	,	,	PUNCT
ajst-2162	37	27	and	and	CCONJ
ajst-2162	37	28	the	the	DET
ajst-2162	37	29	fracturing	fracturing	NOUN
ajst-2162	37	30	ball	ball	NOUN
ajst-2162	37	31	keeps	keep	VERB
ajst-2162	37	32	balance	balance	NOUN
ajst-2162	37	33	under	under	ADP
ajst-2162	37	34	the	the	DET
ajst-2162	37	35	action	action	NOUN
ajst-2162	37	36	of	of	ADP
ajst-2162	37	37	positive	positive	ADJ
ajst-2162	37	38	pressure	pressure	NOUN
ajst-2162	37	39	and	and	CCONJ
ajst-2162	37	40	friction	friction	NOUN
ajst-2162	37	41	[	[	X
ajst-2162	37	42	19	19	NUM
ajst-2162	37	43	]	]	PUNCT
ajst-2162	37	44	.	.	PUNCT
ajst-2162	38	1	the	the	DET
ajst-2162	38	2	relationship	relationship	NOUN
ajst-2162	38	3	between	between	ADP
ajst-2162	38	4	the	the	DET
ajst-2162	38	5	two	two	NUM
ajst-2162	38	6	forces	force	NOUN
ajst-2162	38	7	is	be	AUX
ajst-2162	38	8	:	:	PUNCT
ajst-2162	38	9	n=	n=	ADJ
ajst-2162	38	10	μ	μ	PROPN
ajst-2162	38	11	·	·	PUNCT
ajst-2162	39	1	f	f	X
ajst-2162	39	2	,	,	PUNCT
ajst-2162	39	3	assuming	assume	VERB
ajst-2162	39	4	that	that	SCONJ
ajst-2162	39	5	the	the	DET
ajst-2162	39	6	fracturing	fracturing	NOUN
ajst-2162	39	7	ball	ball	NOUN
ajst-2162	39	8	is	be	AUX
ajst-2162	39	9	an	an	DET
ajst-2162	39	10	elastomer	elastomer	NOUN
ajst-2162	39	11	,	,	PUNCT
ajst-2162	39	12	there	there	PRON
ajst-2162	39	13	are	be	VERB
ajst-2162	39	14	:	:	PUNCT
ajst-2162	39	15	n	n	ADP
ajst-2162	39	16	f	f	NOUN
ajst-2162	39	17	i	i	PRON
ajst-2162	39	18	'	'	VERB
ajst-2162	39	19	n	n	ADV
ajst-2162	39	20	n	n	NOUN
ajst-2162	39	21	(	(	PUNCT
ajst-2162	39	22	2	2	NUM
ajst-2162	39	23	)	)	PUNCT
ajst-2162	39	24	where	where	SCONJ
ajst-2162	39	25	,	,	PUNCT
ajst-2162	39	26	n	n	PRON
ajst-2162	39	27	is	be	AUX
ajst-2162	39	28	the	the	DET
ajst-2162	39	29	reaction	reaction	NOUN
ajst-2162	39	30	force	force	NOUN
ajst-2162	39	31	of	of	ADP
ajst-2162	39	32	the	the	DET
ajst-2162	39	33	ball	ball	NOUN
ajst-2162	39	34	seat	seat	NOUN
ajst-2162	39	35	to	to	ADP
ajst-2162	39	36	the	the	DET
ajst-2162	39	37	fracturing	fracturing	NOUN
ajst-2162	39	38	ball	ball	NOUN
ajst-2162	39	39	after	after	ADP
ajst-2162	39	40	fracturing	fracture	VERB
ajst-2162	39	41	;	;	PUNCT
ajst-2162	39	42	n	n	PROPN
ajst-2162	39	43	^	^	PUNCT
ajst-2162	39	44	'	'	PUNCT
ajst-2162	39	45	is	be	AUX
ajst-2162	39	46	the	the	DET
ajst-2162	39	47	reaction	reaction	NOUN
ajst-2162	39	48	force	force	NOUN
ajst-2162	39	49	between	between	ADP
ajst-2162	39	50	the	the	DET
ajst-2162	39	51	ball	ball	NOUN
ajst-2162	39	52	seat	seat	NOUN
ajst-2162	39	53	and	and	CCONJ
ajst-2162	39	54	the	the	DET
ajst-2162	39	55	fracturing	fracturing	NOUN
ajst-2162	39	56	ball	ball	NOUN
ajst-2162	39	57	during	during	ADP
ajst-2162	39	58	fracturing	fracturing	NOUN
ajst-2162	39	59	;	;	PUNCT
ajst-2162	39	60	μ	μ	PROPN
ajst-2162	39	61	is	be	AUX
ajst-2162	39	62	the	the	DET
ajst-2162	39	63	friction	friction	NOUN
ajst-2162	39	64	coefficient	coefficient	NOUN
ajst-2162	39	65	between	between	ADP
ajst-2162	39	66	the	the	DET
ajst-2162	39	67	ball	ball	NOUN
ajst-2162	39	68	seat	seat	NOUN
ajst-2162	39	69	and	and	CCONJ
ajst-2162	39	70	fracturing	fracturing	NOUN
ajst-2162	39	71	;	;	PUNCT
ajst-2162	39	72	f	f	PROPN
ajst-2162	39	73	is	be	AUX
ajst-2162	39	74	the	the	DET
ajst-2162	39	75	friction	friction	NOUN
ajst-2162	39	76	between	between	ADP
ajst-2162	39	77	the	the	DET
ajst-2162	39	78	ball	ball	NOUN
ajst-2162	39	79	seat	seat	NOUN
ajst-2162	39	80	and	and	CCONJ
ajst-2162	39	81	the	the	DET
ajst-2162	39	82	fracturing	fracturing	NOUN
ajst-2162	39	83	ball	ball	NOUN
ajst-2162	39	84	.	.	PUNCT
ajst-2162	40	1	according	accord	VERB
ajst-2162	40	2	to	to	ADP
ajst-2162	40	3	the	the	DET
ajst-2162	40	4	above	above	ADJ
ajst-2162	40	5	formula	formula	NOUN
ajst-2162	40	6	,	,	PUNCT
ajst-2162	40	7	it	it	PRON
ajst-2162	40	8	can	can	AUX
ajst-2162	40	9	be	be	AUX
ajst-2162	40	10	deduced	deduce	VERB
ajst-2162	40	11	that	that	SCONJ
ajst-2162	40	12	the	the	DET
ajst-2162	40	13	half	half	ADJ
ajst-2162	40	14	cone	cone	NOUN
ajst-2162	40	15	angle	angle	NOUN
ajst-2162	40	16	of	of	ADP
ajst-2162	40	17	the	the	DET
ajst-2162	40	18	fracturing	fracturing	NOUN
ajst-2162	40	19	ball	ball	NOUN
ajst-2162	40	20	that	that	PRON
ajst-2162	40	21	can	can	AUX
ajst-2162	40	22	automatically	automatically	ADV
ajst-2162	40	23	separate	separate	VERB
ajst-2162	40	24	from	from	ADP
ajst-2162	40	25	the	the	DET
ajst-2162	40	26	ball	ball	NOUN
ajst-2162	40	27	socket	socket	NOUN
ajst-2162	40	28	when	when	SCONJ
ajst-2162	40	29	the	the	DET
ajst-2162	40	30	fracturing	fracture	VERB
ajst-2162	40	31	fluid	fluid	NOUN
ajst-2162	40	32	pressure	pressure	NOUN
ajst-2162	40	33	is	be	AUX
ajst-2162	40	34	removed	remove	VERB
ajst-2162	40	35	is	be	AUX
ajst-2162	40	36	arctan	arctan	PRON
ajst-2162	40	37			NOUN
ajst-2162	40	38	(	(	PUNCT
ajst-2162	40	39	3	3	NUM
ajst-2162	40	40	)	)	PUNCT
ajst-2162	40	41	where	where	SCONJ
ajst-2162	40	42	,	,	PUNCT
ajst-2162	40	43	α	α	PROPN
ajst-2162	40	44	is	be	AUX
ajst-2162	40	45	the	the	DET
ajst-2162	40	46	cone	cone	NOUN
ajst-2162	40	47	angle	angle	NOUN
ajst-2162	40	48	of	of	ADP
ajst-2162	40	49	the	the	DET
ajst-2162	40	50	ball	ball	NOUN
ajst-2162	40	51	seat	seat	NOUN
ajst-2162	40	52	.	.	PUNCT
ajst-2162	41	1	the	the	DET
ajst-2162	41	2	fracturing	fracturing	NOUN
ajst-2162	41	3	ball	ball	NOUN
ajst-2162	41	4	used	use	VERB
ajst-2162	41	5	in	in	ADP
ajst-2162	41	6	this	this	DET
ajst-2162	41	7	design	design	NOUN
ajst-2162	41	8	is	be	AUX
ajst-2162	41	9	a	a	DET
ajst-2162	41	10	low	low	ADJ
ajst-2162	41	11	-	-	PUNCT
ajst-2162	41	12	density	density	NOUN
ajst-2162	41	13	composite	composite	ADJ
ajst-2162	41	14	ball	ball	NOUN
ajst-2162	41	15	,	,	PUNCT
ajst-2162	41	16	and	and	CCONJ
ajst-2162	41	17	the	the	DET
ajst-2162	41	18	friction	friction	NOUN
ajst-2162	41	19	coefficient	coefficient	NOUN
ajst-2162	41	20	should	should	AUX
ajst-2162	41	21	be	be	AUX
ajst-2162	41	22	0.3	0.3	NUM
ajst-2162	41	23	.	.	PUNCT
ajst-2162	42	1	therefore	therefore	ADV
ajst-2162	42	2	,	,	PUNCT
ajst-2162	42	3	in	in	ADP
ajst-2162	42	4	order	order	NOUN
ajst-2162	42	5	to	to	PART
ajst-2162	42	6	prevent	prevent	VERB
ajst-2162	42	7	the	the	DET
ajst-2162	42	8	fracturing	fracturing	NOUN
ajst-2162	42	9	ball	ball	NOUN
ajst-2162	42	10	from	from	ADP
ajst-2162	42	11	selflocking	selflocke	VERB
ajst-2162	42	12	with	with	ADP
ajst-2162	42	13	the	the	DET
ajst-2162	42	14	ball	ball	NOUN
ajst-2162	42	15	seat	seat	NOUN
ajst-2162	42	16	after	after	SCONJ
ajst-2162	42	17	the	the	DET
ajst-2162	42	18	fracturing	fracture	VERB
ajst-2162	42	19	fluid	fluid	NOUN
ajst-2162	42	20	pressure	pressure	NOUN
ajst-2162	42	21	is	be	AUX
ajst-2162	42	22	removed	remove	VERB
ajst-2162	42	23	,	,	PUNCT
ajst-2162	42	24	the	the	DET
ajst-2162	42	25	half	half	ADJ
ajst-2162	42	26	cone	cone	NOUN
ajst-2162	42	27	angle	angle	NOUN
ajst-2162	42	28	of	of	ADP
ajst-2162	42	29	the	the	DET
ajst-2162	42	30	ball	ball	NOUN
ajst-2162	42	31	seat	seat	NOUN
ajst-2162	42	32	α	α	NOUN
ajst-2162	42	33	>	>	X
ajst-2162	42	34	arctan	arctan	PROPN
ajst-2162	42	35	(	(	PUNCT
ajst-2162	42	36	0.3)=1	0.3)=1	NUM
ajst-2162	42	37	6.69	6.69	NUM
ajst-2162	42	38	°	°	NOUN
ajst-2162	42	39	.	.	PUNCT
ajst-2162	43	1	in	in	ADP
ajst-2162	43	2	conclusion	conclusion	NOUN
ajst-2162	43	3	,	,	PUNCT
ajst-2162	43	4	to	to	PART
ajst-2162	43	5	meet	meet	VERB
ajst-2162	43	6	the	the	DET
ajst-2162	43	7	requirements	requirement	NOUN
ajst-2162	43	8	,	,	PUNCT
ajst-2162	43	9	the	the	DET
ajst-2162	43	10	cone	cone	NOUN
ajst-2162	43	11	angle	angle	NOUN
ajst-2162	43	12	of	of	ADP
ajst-2162	43	13	the	the	DET
ajst-2162	43	14	ball	ball	NOUN
ajst-2162	43	15	seat	seat	NOUN
ajst-2162	43	16	should	should	AUX
ajst-2162	43	17	be	be	AUX
ajst-2162	43	18	selected	select	VERB
ajst-2162	43	19	between	between	ADP
ajst-2162	43	20	16.69	16.69	NUM
ajst-2162	43	21	°	°	NOUN
ajst-2162	43	22	and	and	CCONJ
ajst-2162	43	23	25	25	NUM
ajst-2162	43	24	°	°	NOUN
ajst-2162	43	25	3	3	X
ajst-2162	43	26	.	.	X
ajst-2162	44	1	ball	ball	NOUN
ajst-2162	44	2	seat	seat	NOUN
ajst-2162	44	3	erosion	erosion	NOUN
ajst-2162	44	4	analysis	analysis	NOUN
ajst-2162	44	5	the	the	DET
ajst-2162	44	6	fracturing	fracturing	NOUN
ajst-2162	44	7	fluid	fluid	NOUN
ajst-2162	44	8	contains	contain	VERB
ajst-2162	44	9	a	a	DET
ajst-2162	44	10	large	large	ADJ
ajst-2162	44	11	number	number	NOUN
ajst-2162	44	12	of	of	ADP
ajst-2162	44	13	solid	solid	ADJ
ajst-2162	44	14	particles	particle	NOUN
ajst-2162	44	15	.	.	PUNCT
ajst-2162	45	1	under	under	ADP
ajst-2162	45	2	the	the	DET
ajst-2162	45	3	continuous	continuous	ADJ
ajst-2162	45	4	impact	impact	NOUN
ajst-2162	45	5	of	of	ADP
ajst-2162	45	6	the	the	DET
ajst-2162	45	7	fracturing	fracturing	NOUN
ajst-2162	45	8	fluid	fluid	NOUN
ajst-2162	45	9	,	,	PUNCT
ajst-2162	45	10	the	the	DET
ajst-2162	45	11	ball	ball	NOUN
ajst-2162	45	12	seat	seat	NOUN
ajst-2162	45	13	will	will	AUX
ajst-2162	45	14	appear	appear	VERB
ajst-2162	45	15	pitting	pitting	NOUN
ajst-2162	45	16	,	,	PUNCT
ajst-2162	45	17	pitting	pitting	NOUN
ajst-2162	45	18	and	and	CCONJ
ajst-2162	45	19	other	other	ADJ
ajst-2162	45	20	phenomena	phenomenon	NOUN
ajst-2162	45	21	,	,	PUNCT
ajst-2162	45	22	which	which	PRON
ajst-2162	45	23	may	may	AUX
ajst-2162	45	24	eventually	eventually	ADV
ajst-2162	45	25	lead	lead	VERB
ajst-2162	45	26	to	to	ADP
ajst-2162	45	27	the	the	DET
ajst-2162	45	28	seal	seal	NOUN
ajst-2162	45	29	failure	failure	NOUN
ajst-2162	45	30	of	of	ADP
ajst-2162	45	31	the	the	DET
ajst-2162	45	32	ball	ball	NOUN
ajst-2162	45	33	seat	seat	NOUN
ajst-2162	45	34	[	[	X
ajst-2162	45	35	20	20	NUM
ajst-2162	45	36	]	]	PUNCT
ajst-2162	45	37	.	.	PUNCT
ajst-2162	46	1	in	in	ADP
ajst-2162	46	2	order	order	NOUN
ajst-2162	46	3	to	to	PART
ajst-2162	46	4	reduce	reduce	VERB
ajst-2162	46	5	the	the	DET
ajst-2162	46	6	erosion	erosion	NOUN
ajst-2162	46	7	of	of	ADP
ajst-2162	46	8	the	the	DET
ajst-2162	46	9	ball	ball	NOUN
ajst-2162	46	10	seat	seat	NOUN
ajst-2162	46	11	as	as	ADV
ajst-2162	46	12	much	much	ADV
ajst-2162	46	13	as	as	ADP
ajst-2162	46	14	possible	possible	ADJ
ajst-2162	46	15	and	and	CCONJ
ajst-2162	46	16	optimize	optimize	VERB
ajst-2162	46	17	the	the	DET
ajst-2162	46	18	cone	cone	NOUN
ajst-2162	46	19	angle	angle	NOUN
ajst-2162	46	20	of	of	ADP
ajst-2162	46	21	the	the	DET
ajst-2162	46	22	ball	ball	NOUN
ajst-2162	46	23	seat	seat	NOUN
ajst-2162	46	24	,	,	PUNCT
ajst-2162	46	25	this	this	DET
ajst-2162	46	26	paper	paper	NOUN
ajst-2162	46	27	calculates	calculate	VERB
ajst-2162	46	28	the	the	DET
ajst-2162	46	29	erosion	erosion	NOUN
ajst-2162	46	30	wear	wear	NOUN
ajst-2162	46	31	of	of	ADP
ajst-2162	46	32	the	the	DET
ajst-2162	46	33	ball	ball	NOUN
ajst-2162	46	34	seat	seat	NOUN
ajst-2162	46	35	with	with	ADP
ajst-2162	46	36	different	different	ADJ
ajst-2162	46	37	cone	cone	NOUN
ajst-2162	46	38	angles	angle	NOUN
ajst-2162	46	39	based	base	VERB
ajst-2162	46	40	on	on	ADP
ajst-2162	46	41	hydrodynamics	hydrodynamic	NOUN
ajst-2162	46	42	and	and	CCONJ
ajst-2162	46	43	cutting	cut	VERB
ajst-2162	46	44	deformation	deformation	NOUN
ajst-2162	46	45	theory	theory	NOUN
ajst-2162	46	46	.	.	PUNCT
ajst-2162	47	1	the	the	DET
ajst-2162	47	2	sand	sand	NOUN
ajst-2162	47	3	carrying	carry	VERB
ajst-2162	47	4	fracturing	fracturing	NOUN
ajst-2162	47	5	fluid	fluid	NOUN
ajst-2162	47	6	is	be	AUX
ajst-2162	47	7	a	a	DET
ajst-2162	47	8	solid	solid	ADJ
ajst-2162	47	9	-	-	PUNCT
ajst-2162	47	10	liquid	liquid	ADJ
ajst-2162	47	11	twophase	twophase	NOUN
ajst-2162	47	12	flow	flow	NOUN
ajst-2162	47	13	.	.	PUNCT
ajst-2162	48	1	assuming	assume	VERB
ajst-2162	48	2	that	that	SCONJ
ajst-2162	48	3	the	the	DET
ajst-2162	48	4	fluid	fluid	NOUN
ajst-2162	48	5	is	be	AUX
ajst-2162	48	6	incompressible	incompressible	ADJ
ajst-2162	48	7	,	,	PUNCT
ajst-2162	48	8	dmp	dmp	NOUN
ajst-2162	48	9	discrete	discrete	ADJ
ajst-2162	48	10	phase	phase	NOUN
ajst-2162	48	11	model	model	NOUN
ajst-2162	48	12	is	be	AUX
ajst-2162	48	13	used	use	VERB
ajst-2162	48	14	to	to	PART
ajst-2162	48	15	simulate	simulate	VERB
ajst-2162	48	16	the	the	DET
ajst-2162	48	17	flow	flow	NOUN
ajst-2162	48	18	field	field	NOUN
ajst-2162	48	19	movement	movement	NOUN
ajst-2162	48	20	inside	inside	ADP
ajst-2162	48	21	the	the	DET
ajst-2162	48	22	sliding	slide	VERB
ajst-2162	48	23	sleeve	sleeve	NOUN
ajst-2162	48	24	.	.	PUNCT
ajst-2162	49	1	3.1	3.1	NUM
ajst-2162	49	2	.	.	PUNCT
ajst-2162	49	3	establishment	establishment	NOUN
ajst-2162	49	4	of	of	ADP
ajst-2162	49	5	ball	ball	NOUN
ajst-2162	49	6	seat	seat	NOUN
ajst-2162	49	7	erosion	erosion	NOUN
ajst-2162	49	8	wear	wear	VERB
ajst-2162	49	9	equation	equation	NOUN
ajst-2162	49	10	when	when	SCONJ
ajst-2162	49	11	the	the	DET
ajst-2162	49	12	discrete	discrete	ADJ
ajst-2162	49	13	phase	phase	NOUN
ajst-2162	49	14	model	model	NOUN
ajst-2162	49	15	is	be	AUX
ajst-2162	49	16	used	use	VERB
ajst-2162	49	17	,	,	PUNCT
ajst-2162	49	18	the	the	DET
ajst-2162	49	19	wall	wall	NOUN
ajst-2162	49	20	wear	wear	VERB
ajst-2162	49	21	rate	rate	NOUN
ajst-2162	49	22	r	r	NOUN
ajst-2162	49	23	must	must	AUX
ajst-2162	49	24	be	be	AUX
ajst-2162	49	25	set	set	VERB
ajst-2162	49	26	_	_	DET
ajst-2162	49	27	erosion	erosion	NOUN
ajst-2162	50	1	[	[	X
ajst-2162	50	2	21	21	NUM
ajst-2162	50	3	]	]	X
ajst-2162	50	4	,	,	PUNCT
ajst-2162	50	5	which	which	PRON
ajst-2162	50	6	is	be	AUX
ajst-2162	50	7	defined	define	VERB
ajst-2162	50	8	as	as	ADP
ajst-2162	50	9	:	:	PUNCT
ajst-2162	50	10			NOUN
ajst-2162	51	1			PROPN
ajst-2162	51	2			NOUN
ajst-2162	51	3			SYM
ajst-2162	51	4			NOUN
ajst-2162	51	5			PROPN
ajst-2162	51	6	rosion	rosion	NOUN
ajst-2162	51	7	1	1	NUM
ajst-2162	51	8	pb	pb	ADP
ajst-2162	51	9	v	v	ADP
ajst-2162	51	10	n	n	NOUN
ajst-2162	51	11	p	p	NOUN
ajst-2162	51	12	p	p	X
ajst-2162	51	13	p	p	X
ajst-2162	51	14	e	e	X
ajst-2162	51	15	p	p	NOUN
ajst-2162	51	16	face	face	NOUN
ajst-2162	51	17	m	m	NOUN
ajst-2162	51	18	c	c	NOUN
ajst-2162	52	1	d	d	NOUN
ajst-2162	52	2	f	f	X
ajst-2162	52	3	v	v	ADP
ajst-2162	52	4	r	r	NOUN
ajst-2162	52	5	a	a	DET
ajst-2162	52	6			NOUN
ajst-2162	52	7			NOUN
ajst-2162	52	8			PROPN
ajst-2162	52	9	(	(	PUNCT
ajst-2162	52	10	4	4	NUM
ajst-2162	52	11	)	)	PUNCT
ajst-2162	52	12	where	where	SCONJ
ajst-2162	52	13	,	,	PUNCT
ajst-2162	52	14	𝑚	𝑚	PROPN
ajst-2162	52	15	is	be	AUX
ajst-2162	52	16	the	the	DET
ajst-2162	52	17	mass	mass	ADJ
ajst-2162	52	18	flow	flow	NOUN
ajst-2162	52	19	of	of	ADP
ajst-2162	52	20	proppant	proppant	NOUN
ajst-2162	52	21	;	;	PUNCT
ajst-2162	52	22	𝐶	𝐶	PROPN
ajst-2162	52	23	is	be	AUX
ajst-2162	52	24	the	the	DET
ajst-2162	52	25	function	function	NOUN
ajst-2162	52	26	of	of	ADP
ajst-2162	52	27	proppant	proppant	ADJ
ajst-2162	52	28	particle	particle	NOUN
ajst-2162	52	29	diameter	diameter	NOUN
ajst-2162	52	30	,	,	PUNCT
ajst-2162	52	31	taken	take	VERB
ajst-2162	52	32	as	as	ADP
ajst-2162	52	33	1.9×10	1.9×10	NUM
ajst-2162	52	34	-	-	SYM
ajst-2162	52	35	9	9	NUM
ajst-2162	52	36	；	；	NOUN
ajst-2162	52	37	(	(	PUNCT
ajst-2162	52	38	v	v	NOUN
ajst-2162	52	39	)	)	PUNCT
ajst-2162	52	40	pb	pb	ADV
ajst-2162	52	41	pv	pv	PROPN
ajst-2162	52	42	is	be	AUX
ajst-2162	52	43	the	the	DET
ajst-2162	52	44	impact	impact	NOUN
ajst-2162	52	45	velocity	velocity	NOUN
ajst-2162	52	46	function	function	NOUN
ajst-2162	52	47	,	,	PUNCT
ajst-2162	52	48	taken	take	VERB
ajst-2162	52	49	as	as	ADP
ajst-2162	52	50	2.3	2.3	NUM
ajst-2162	52	51	;	;	PUNCT
ajst-2162	52	52	𝐴	𝐴	PROPN
ajst-2162	52	53	is	be	AUX
ajst-2162	52	54	the	the	DET
ajst-2162	52	55	erosion	erosion	NOUN
ajst-2162	52	56	area	area	NOUN
ajst-2162	52	57	;	;	PUNCT
ajst-2162	52	58	𝑓	𝑓	DET
ajst-2162	52	59	𝛼	𝛼	NOUN
ajst-2162	52	60	is	be	AUX
ajst-2162	52	61	a	a	DET
ajst-2162	52	62	function	function	NOUN
ajst-2162	52	63	of	of	ADP
ajst-2162	52	64	impact	impact	NOUN
ajst-2162	52	65	angle	angle	NOUN
ajst-2162	52	66	.	.	PUNCT
ajst-2162	53	1	according	accord	VERB
ajst-2162	53	2	to	to	ADP
ajst-2162	53	3	finnie	finnie	NOUN
ajst-2162	53	4	's	's	PART
ajst-2162	53	5	classical	classical	ADJ
ajst-2162	53	6	cutting	cutting	NOUN
ajst-2162	53	7	theory	theory	NOUN
ajst-2162	53	8	of	of	ADP
ajst-2162	53	9	plastic	plastic	ADJ
ajst-2162	53	10	materials	material	NOUN
ajst-2162	53	11	[	[	X
ajst-2162	53	12	22	22	NUM
ajst-2162	53	13	]	]	PUNCT
ajst-2162	53	14	,	,	PUNCT
ajst-2162	53	15	a	a	DET
ajst-2162	53	16	theoretical	theoretical	ADJ
ajst-2162	53	17	model	model	NOUN
ajst-2162	53	18	of	of	ADP
ajst-2162	53	19	erosion	erosion	NOUN
ajst-2162	53	20	wear	wear	NOUN
ajst-2162	53	21	of	of	ADP
ajst-2162	53	22	ball	ball	NOUN
ajst-2162	53	23	seats	seat	NOUN
ajst-2162	53	24	is	be	AUX
ajst-2162	53	25	established	establish	VERB
ajst-2162	53	26	.	.	PUNCT
ajst-2162	54	1	the	the	DET
ajst-2162	54	2	impact	impact	NOUN
ajst-2162	54	3	angle	angle	NOUN
ajst-2162	54	4	function	function	NOUN
ajst-2162	54	5	of	of	ADP
ajst-2162	54	6	ball	ball	NOUN
ajst-2162	54	7	seats	seat	NOUN
ajst-2162	54	8	is	be	AUX
ajst-2162	54	9	:	:	PUNCT
ajst-2162	54	10			NOUN
ajst-2162	54	11			SYM
ajst-2162	54	12			NOUN
ajst-2162	54	13			PUNCT
ajst-2162	54	14	2sin	2sin	NUM
ajst-2162	54	15	2	2	NUM
ajst-2162	54	16	3sinf	3sinf	NUM
ajst-2162	54	17			NOUN
ajst-2162	54	18			X
ajst-2162	54	19			PRON
ajst-2162	54	20			PROPN
ajst-2162	54	21	（	（	PUNCT
ajst-2162	54	22	𝛼	𝛼	PROPN
ajst-2162	54	23	18.43	18.43	NUM
ajst-2162	54	24	°	°	NUM
ajst-2162	54	25	）	）	PUNCT
ajst-2162	54	26	(	(	PUNCT
ajst-2162	54	27	5	5	NUM
ajst-2162	54	28	)	)	PUNCT
ajst-2162	54	29			NOUN
ajst-2162	54	30			PROPN
ajst-2162	54	31	2cos	2cos	PROPN
ajst-2162	54	32	/	/	SYM
ajst-2162	54	33	3f	3f	PROPN
ajst-2162	54	34			X
ajst-2162	54	35			X
ajst-2162	54	36	（	（	PUNCT
ajst-2162	54	37	𝛼	𝛼	PROPN
ajst-2162	54	38	18.43	18.43	NUM
ajst-2162	54	39	°	°	NUM
ajst-2162	54	40	）	）	PUNCT
ajst-2162	54	41	(	(	PUNCT
ajst-2162	54	42	6	6	NUM
ajst-2162	54	43	)	)	PUNCT
ajst-2162	54	44	according	accord	VERB
ajst-2162	54	45	to	to	ADP
ajst-2162	54	46	the	the	DET
ajst-2162	54	47	calculation	calculation	NOUN
ajst-2162	54	48	formula	formula	NOUN
ajst-2162	54	49	of	of	ADP
ajst-2162	54	50	impact	impact	NOUN
ajst-2162	54	51	angle	angle	NOUN
ajst-2162	54	52	function	function	NOUN
ajst-2162	54	53	,	,	PUNCT
ajst-2162	54	54	the	the	DET
ajst-2162	54	55	impact	impact	NOUN
ajst-2162	54	56	angle	angle	NOUN
ajst-2162	54	57	function	function	NOUN
ajst-2162	54	58	of	of	ADP
ajst-2162	54	59	each	each	DET
ajst-2162	54	60	cone	cone	NOUN
ajst-2162	54	61	angle	angle	NOUN
ajst-2162	54	62	spherical	spherical	ADJ
ajst-2162	54	63	seat	seat	NOUN
ajst-2162	54	64	wall	wall	NOUN
ajst-2162	54	65	is	be	AUX
ajst-2162	54	66	shown	show	VERB
ajst-2162	54	67	in	in	ADP
ajst-2162	54	68	table	table	NOUN
ajst-2162	54	69	1	1	NUM
ajst-2162	54	70	:	:	PUNCT
ajst-2162	54	71	table	table	NOUN
ajst-2162	54	72	1	1	NUM
ajst-2162	54	73	impact	impact	NOUN
ajst-2162	54	74	angle	angle	NOUN
ajst-2162	54	75	of	of	ADP
ajst-2162	54	76	ball	ball	NOUN
ajst-2162	54	77	seat	seat	NOUN
ajst-2162	54	78	wall	wall	PROPN
ajst-2162	54	79	3.2	3.2	NUM
ajst-2162	54	80	.	.	PUNCT
ajst-2162	55	1	calculation	calculation	NOUN
ajst-2162	55	2	of	of	ADP
ajst-2162	55	3	ball	ball	NOUN
ajst-2162	55	4	socket	socket	NOUN
ajst-2162	55	5	erosion	erosion	NOUN
ajst-2162	55	6	of	of	ADP
ajst-2162	55	7	ball	ball	NOUN
ajst-2162	55	8	throwing	throw	VERB
ajst-2162	55	9	sliding	slide	VERB
ajst-2162	55	10	sleeve	sleeve	NOUN
ajst-2162	55	11	assume	assume	VERB
ajst-2162	55	12	that	that	SCONJ
ajst-2162	55	13	the	the	DET
ajst-2162	55	14	density	density	NOUN
ajst-2162	55	15	of	of	ADP
ajst-2162	55	16	fracturing	fracturing	NOUN
ajst-2162	55	17	fluid	fluid	NOUN
ajst-2162	55	18	is	be	AUX
ajst-2162	55	19	1400	1400	NUM
ajst-2162	55	20	kg	kg	NOUN
ajst-2162	55	21	/	/	SYM
ajst-2162	55	22	m3	m3	PROPN
ajst-2162	55	23	,	,	PUNCT
ajst-2162	55	24	the	the	DET
ajst-2162	55	25	proppant	proppant	ADJ
ajst-2162	55	26	density	density	NOUN
ajst-2162	55	27	is	be	AUX
ajst-2162	55	28	1800	1800	NUM
ajst-2162	55	29	kg	kg	NOUN
ajst-2162	55	30	/	/	SYM
ajst-2162	55	31	m3	m3	PROPN
ajst-2162	55	32	,	,	PUNCT
ajst-2162	55	33	the	the	DET
ajst-2162	55	34	proppant	proppant	NOUN
ajst-2162	55	35	volume	volume	NOUN
ajst-2162	55	36	fraction	fraction	NOUN
ajst-2162	55	37	is	be	AUX
ajst-2162	55	38	10	10	NUM
ajst-2162	55	39	%	%	NOUN
ajst-2162	55	40	,	,	PUNCT
ajst-2162	55	41	the	the	DET
ajst-2162	55	42	particle	particle	NOUN
ajst-2162	55	43	size	size	NOUN
ajst-2162	55	44	is	be	AUX
ajst-2162	55	45	0.6	0.6	NUM
ajst-2162	55	46	mm	mm	NOUN
ajst-2162	55	47	,	,	PUNCT
ajst-2162	55	48	the	the	DET
ajst-2162	55	49	fracturing	fracture	VERB
ajst-2162	55	50	fluid	fluid	NOUN
ajst-2162	55	51	flow	flow	NOUN
ajst-2162	55	52	is	be	AUX
ajst-2162	55	53	q=5	q=5	X
ajst-2162	55	54	m	m	X
ajst-2162	55	55	^	^	PUNCT
ajst-2162	55	56	3	3	NUM
ajst-2162	55	57	/	/	SYM
ajst-2162	55	58	min	min	NOUN
ajst-2162	55	59	,	,	PUNCT
ajst-2162	55	60	the	the	DET
ajst-2162	55	61	formation	formation	NOUN
ajst-2162	55	62	pressure	pressure	NOUN
ajst-2162	55	63	is	be	AUX
ajst-2162	55	64	60mpa	60mpa	NOUN
ajst-2162	55	65	,	,	PUNCT
ajst-2162	55	66	and	and	CCONJ
ajst-2162	55	67	the	the	DET
ajst-2162	55	68	fracturing	fracture	VERB
ajst-2162	55	69	fluid	fluid	NOUN
ajst-2162	55	70	viscosity	viscosity	NOUN
ajst-2162	55	71	is	be	AUX
ajst-2162	55	72	μ	μ	NOUN
ajst-2162	55	73	take	take	VERB
ajst-2162	55	74	0.1	0.1	NUM
ajst-2162	55	75	,	,	PUNCT
ajst-2162	55	76	the	the	DET
ajst-2162	55	77	diameter	diameter	NOUN
ajst-2162	55	78	of	of	ADP
ajst-2162	55	79	the	the	DET
ajst-2162	55	80	front	front	ADJ
ajst-2162	55	81	end	end	NOUN
ajst-2162	55	82	of	of	ADP
ajst-2162	55	83	the	the	DET
ajst-2162	55	84	model	model	NOUN
ajst-2162	55	85	is	be	AUX
ajst-2162	55	86	the	the	DET
ajst-2162	55	87	inner	inner	ADJ
ajst-2162	55	88	diameter	diameter	NOUN
ajst-2162	55	89	of	of	ADP
ajst-2162	55	90	the	the	DET
ajst-2162	55	91	fracturing	fracturing	NOUN
ajst-2162	55	92	sliding	slide	VERB
ajst-2162	55	93	sleeve	sleeve	NOUN
ajst-2162	55	94	,	,	PUNCT
ajst-2162	55	95	take	take	VERB
ajst-2162	55	96	116	116	NUM
ajst-2162	55	97	mm	mm	NOUN
ajst-2162	55	98	,	,	PUNCT
ajst-2162	55	99	the	the	DET
ajst-2162	55	100	lower	low	ADJ
ajst-2162	55	101	end	end	NOUN
ajst-2162	55	102	of	of	ADP
ajst-2162	55	103	the	the	DET
ajst-2162	55	104	model	model	NOUN
ajst-2162	55	105	is	be	AUX
ajst-2162	55	106	the	the	DET
ajst-2162	55	107	shrinkage	shrinkage	NOUN
ajst-2162	55	108	diameter	diameter	NOUN
ajst-2162	55	109	of	of	ADP
ajst-2162	55	110	the	the	DET
ajst-2162	55	111	ball	ball	NOUN
ajst-2162	55	112	seat	seat	NOUN
ajst-2162	55	113	,	,	PUNCT
ajst-2162	55	114	take	take	VERB
ajst-2162	55	115	76.5	76.5	NUM
ajst-2162	55	116	mm	mm	NOUN
ajst-2162	55	117	,	,	PUNCT
ajst-2162	55	118	then	then	ADV
ajst-2162	55	119	the	the	DET
ajst-2162	55	120	inlet	inlet	NOUN
ajst-2162	55	121	flow	flow	NOUN
ajst-2162	55	122	rate	rate	NOUN
ajst-2162	55	123	is	be	AUX
ajst-2162	55	124	:	:	PUNCT
ajst-2162	55	125	v	v	X
ajst-2162	55	126	=	=	NOUN
ajst-2162	55	127	q	q	ADJ
ajst-2162	55	128	∕	∕	NOUN
ajst-2162	55	129	a=7.89	a=7.89	NOUN
ajst-2162	55	130	m/s	m/s	PROPN
ajst-2162	55	131	,	,	PUNCT
ajst-2162	55	132	and	and	CCONJ
ajst-2162	55	133	the	the	DET
ajst-2162	55	134	mass	mass	NOUN
ajst-2162	55	135	flow	flow	NOUN
ajst-2162	55	136	rate	rate	NOUN
ajst-2162	55	137	of	of	ADP
ajst-2162	55	138	the	the	DET
ajst-2162	55	139	proppant	proppant	NOUN
ajst-2162	55	140	is	be	AUX
ajst-2162	55	141	:	:	PUNCT
ajst-2162	55	142	m=0.1	m=0.1	X
ajst-2162	55	143	(	(	PUNCT
ajst-2162	55	144	q	q	NOUN
ajst-2162	55	145	∕	∕	NOUN
ajst-2162	55	146	60	60	NUM
ajst-2162	55	147	)	)	PUNCT
ajst-2162	55	148	ρ=	ρ=	PROPN
ajst-2162	55	149	15kg	15kg	PROPN
ajst-2162	55	150	/	/	SYM
ajst-2162	55	151	s	s	PROPN
ajst-2162	55	152	,	,	PUNCT
ajst-2162	55	153	reynolds	reynolds	PROPN
ajst-2162	55	154	163	163	NUM
ajst-2162	55	155	coefficient	coefficient	NOUN
ajst-2162	55	156	of	of	ADP
ajst-2162	55	157	fracturing	fracture	VERB
ajst-2162	55	158	fluid	fluid	NOUN
ajst-2162	55	159	:	:	PUNCT
ajst-2162	55	160	re=	re=	VERB
ajst-2162	55	161	ρ	ρ	PROPN
ajst-2162	55	162	vd∕	vd∕	NOUN
ajst-2162	55	163	μ=	μ=	NOUN
ajst-2162	55	164	（	（	PUNCT
ajst-2162	55	165	1400	1400	NUM
ajst-2162	55	166	×	×	NOUN
ajst-2162	55	167	seven	seven	NUM
ajst-2162	55	168	point	point	NOUN
ajst-2162	55	169	eight	eight	NUM
ajst-2162	55	170	nine	nine	NUM
ajst-2162	55	171	×	×	NOUN
ajst-2162	55	172	0.116	0.116	NUM
ajst-2162	55	173	)	)	PUNCT
ajst-2162	56	1	∕	∕	NOUN
ajst-2162	56	2	(	(	PUNCT
ajst-2162	56	3	0.1=12813>10000	0.1=12813>10000	NUM
ajst-2162	56	4	)	)	PUNCT
ajst-2162	56	5	,	,	PUNCT
ajst-2162	56	6	the	the	DET
ajst-2162	56	7	fluid	fluid	NOUN
ajst-2162	56	8	is	be	AUX
ajst-2162	56	9	in	in	ADP
ajst-2162	56	10	a	a	DET
ajst-2162	56	11	completely	completely	ADV
ajst-2162	56	12	turbulent	turbulent	ADJ
ajst-2162	56	13	state	state	NOUN
ajst-2162	56	14	[	[	X
ajst-2162	56	15	23	23	NUM
ajst-2162	56	16	]	]	PUNCT
ajst-2162	56	17	,	,	PUNCT
ajst-2162	56	18	so	so	CCONJ
ajst-2162	56	19	the	the	DET
ajst-2162	56	20	turbulence	turbulence	NOUN
ajst-2162	56	21	model	model	NOUN
ajst-2162	56	22	is	be	AUX
ajst-2162	56	23	adopted	adopt	VERB
ajst-2162	56	24	.	.	PUNCT
ajst-2162	57	1	the	the	DET
ajst-2162	57	2	turbulence	turbulence	NOUN
ajst-2162	57	3	boundary	boundary	ADJ
ajst-2162	57	4	conditions	condition	NOUN
ajst-2162	57	5	are	be	AUX
ajst-2162	57	6	turbulence	turbulence	NOUN
ajst-2162	57	7	intensity	intensity	NOUN
ajst-2162	57	8	and	and	CCONJ
ajst-2162	57	9	hydraulic	hydraulic	ADJ
ajst-2162	57	10	diameter	diameter	NOUN
ajst-2162	57	11	,	,	PUNCT
ajst-2162	57	12	and	and	CCONJ
ajst-2162	57	13	the	the	DET
ajst-2162	57	14	turbulence	turbulence	NOUN
ajst-2162	57	15	intensity	intensity	NOUN
ajst-2162	57	16	is	be	AUX
ajst-2162	57	17	i=0.16	i=0.16	PUNCT
ajst-2162	58	1	[	[	X
ajst-2162	58	2	re	re	X
ajst-2162	58	3	]	]	X
ajst-2162	58	4	^	^	PUNCT
ajst-2162	58	5	(	(	PUNCT
ajst-2162	58	6	1	1	NUM
ajst-2162	58	7	∕	∕	NOUN
ajst-2162	58	8	8)=4.91	8)=4.91	NUM
ajst-2162	58	9	%	%	NOUN
ajst-2162	58	10	.	.	PUNCT
ajst-2162	59	1	in	in	ADP
ajst-2162	59	2	order	order	NOUN
ajst-2162	59	3	to	to	PART
ajst-2162	59	4	make	make	VERB
ajst-2162	59	5	the	the	DET
ajst-2162	59	6	fracturing	fracturing	NOUN
ajst-2162	59	7	fluid	fluid	NOUN
ajst-2162	59	8	reach	reach	VERB
ajst-2162	59	9	a	a	DET
ajst-2162	59	10	stable	stable	ADJ
ajst-2162	59	11	state	state	NOUN
ajst-2162	59	12	when	when	SCONJ
ajst-2162	59	13	reaching	reach	VERB
ajst-2162	59	14	the	the	DET
ajst-2162	59	15	ball	ball	NOUN
ajst-2162	59	16	socket	socket	NOUN
ajst-2162	59	17	,	,	PUNCT
ajst-2162	59	18	the	the	DET
ajst-2162	59	19	ball	ball	NOUN
ajst-2162	59	20	socket	socket	NOUN
ajst-2162	59	21	model	model	NOUN
ajst-2162	59	22	extends	extend	VERB
ajst-2162	59	23	forward	forward	ADV
ajst-2162	59	24	and	and	CCONJ
ajst-2162	59	25	backward	backward	ADJ
ajst-2162	59	26	for	for	ADP
ajst-2162	59	27	200	200	NUM
ajst-2162	59	28	mm	mm	NOUN
ajst-2162	59	29	respectively	respectively	ADV
ajst-2162	59	30	.	.	PUNCT
ajst-2162	60	1	the	the	DET
ajst-2162	60	2	ball	ball	NOUN
ajst-2162	60	3	socket	socket	NOUN
ajst-2162	60	4	model	model	NOUN
ajst-2162	60	5	is	be	AUX
ajst-2162	60	6	divided	divide	VERB
ajst-2162	60	7	into	into	ADP
ajst-2162	60	8	grids	grid	NOUN
ajst-2162	60	9	by	by	ADP
ajst-2162	60	10	hexahedral	hexahedral	ADJ
ajst-2162	60	11	elements	element	NOUN
ajst-2162	60	12	,	,	PUNCT
ajst-2162	60	13	and	and	CCONJ
ajst-2162	60	14	the	the	DET
ajst-2162	60	15	boundary	boundary	ADJ
ajst-2162	60	16	layer	layer	NOUN
ajst-2162	60	17	grid	grid	NOUN
ajst-2162	60	18	is	be	AUX
ajst-2162	60	19	divided	divide	VERB
ajst-2162	60	20	on	on	ADP
ajst-2162	60	21	the	the	DET
ajst-2162	60	22	wall	wall	NOUN
ajst-2162	60	23	.	.	PUNCT
ajst-2162	61	1	the	the	DET
ajst-2162	61	2	model	model	NOUN
ajst-2162	61	3	and	and	CCONJ
ajst-2162	61	4	grid	grid	NOUN
ajst-2162	61	5	are	be	AUX
ajst-2162	61	6	shown	show	VERB
ajst-2162	61	7	in	in	ADP
ajst-2162	61	8	figure	figure	NOUN
ajst-2162	61	9	2	2	NUM
ajst-2162	61	10	.	.	PUNCT
ajst-2162	61	11	figure	figure	NOUN
ajst-2162	61	12	2	2	NUM
ajst-2162	61	13	.	.	PUNCT
ajst-2162	61	14	ball	ball	NOUN
ajst-2162	61	15	seat	seat	NOUN
ajst-2162	61	16	erosion	erosion	NOUN
ajst-2162	61	17	model	model	NOUN
ajst-2162	61	18	and	and	CCONJ
ajst-2162	61	19	grid	grid	NOUN
ajst-2162	61	20	division	division	NOUN
ajst-2162	61	21	figure	figure	NOUN
ajst-2162	61	22	3	3	NUM
ajst-2162	61	23	.	.	NOUN
ajst-2162	61	24	erosion	erosion	NOUN
ajst-2162	61	25	rate	rate	NOUN
ajst-2162	61	26	diagram	diagram	NOUN
ajst-2162	61	27	at	at	ADP
ajst-2162	61	28	17	17	NUM
ajst-2162	61	29	°	°	NOUN
ajst-2162	61	30	cone	cone	NOUN
ajst-2162	61	31	angle	angle	NOUN
ajst-2162	61	32	firstly	firstly	ADV
ajst-2162	61	33	,	,	PUNCT
ajst-2162	61	34	the	the	DET
ajst-2162	61	35	erosion	erosion	NOUN
ajst-2162	61	36	analysis	analysis	NOUN
ajst-2162	61	37	is	be	AUX
ajst-2162	61	38	carried	carry	VERB
ajst-2162	61	39	out	out	ADP
ajst-2162	61	40	for	for	ADP
ajst-2162	61	41	the	the	DET
ajst-2162	61	42	ball	ball	NOUN
ajst-2162	61	43	seat	seat	NOUN
ajst-2162	61	44	model	model	NOUN
ajst-2162	61	45	with	with	ADP
ajst-2162	61	46	a	a	DET
ajst-2162	61	47	cone	cone	NOUN
ajst-2162	61	48	angle	angle	NOUN
ajst-2162	61	49	of	of	ADP
ajst-2162	61	50	17	17	NUM
ajst-2162	61	51	°	°	NOUN
ajst-2162	61	52	.	.	PUNCT
ajst-2162	62	1	the	the	DET
ajst-2162	62	2	erosion	erosion	NOUN
ajst-2162	62	3	wear	wear	VERB
ajst-2162	62	4	results	result	NOUN
ajst-2162	62	5	of	of	ADP
ajst-2162	62	6	the	the	DET
ajst-2162	62	7	ball	ball	NOUN
ajst-2162	62	8	seat	seat	NOUN
ajst-2162	62	9	are	be	AUX
ajst-2162	62	10	shown	show	VERB
ajst-2162	62	11	in	in	ADP
ajst-2162	62	12	figure	figure	NOUN
ajst-2162	62	13	3	3	NUM
ajst-2162	62	14	.	.	PUNCT
ajst-2162	63	1	it	it	PRON
ajst-2162	63	2	can	can	AUX
ajst-2162	63	3	be	be	AUX
ajst-2162	63	4	seen	see	VERB
ajst-2162	63	5	from	from	ADP
ajst-2162	63	6	the	the	DET
ajst-2162	63	7	erosion	erosion	NOUN
ajst-2162	63	8	rate	rate	NOUN
ajst-2162	63	9	diagram	diagram	NOUN
ajst-2162	63	10	that	that	SCONJ
ajst-2162	63	11	the	the	DET
ajst-2162	63	12	erosion	erosion	NOUN
ajst-2162	63	13	phenomenon	phenomenon	NOUN
ajst-2162	63	14	is	be	AUX
ajst-2162	63	15	mainly	mainly	ADV
ajst-2162	63	16	distributed	distribute	VERB
ajst-2162	63	17	at	at	ADP
ajst-2162	63	18	the	the	DET
ajst-2162	63	19	conical	conical	ADJ
ajst-2162	63	20	surface	surface	NOUN
ajst-2162	63	21	of	of	ADP
ajst-2162	63	22	the	the	DET
ajst-2162	63	23	ball	ball	NOUN
ajst-2162	63	24	seat	seat	NOUN
ajst-2162	63	25	and	and	CCONJ
ajst-2162	63	26	the	the	DET
ajst-2162	63	27	rear	rear	ADJ
ajst-2162	63	28	runner	runner	NOUN
ajst-2162	63	29	of	of	ADP
ajst-2162	63	30	the	the	DET
ajst-2162	63	31	ball	ball	NOUN
ajst-2162	63	32	seat	seat	NOUN
ajst-2162	63	33	.	.	PUNCT
ajst-2162	64	1	the	the	DET
ajst-2162	64	2	erosion	erosion	NOUN
ajst-2162	64	3	wear	wear	VERB
ajst-2162	64	4	in	in	ADP
ajst-2162	64	5	the	the	DET
ajst-2162	64	6	lower	low	ADJ
ajst-2162	64	7	area	area	NOUN
ajst-2162	64	8	of	of	ADP
ajst-2162	64	9	the	the	DET
ajst-2162	64	10	conical	conical	ADJ
ajst-2162	64	11	surface	surface	NOUN
ajst-2162	64	12	of	of	ADP
ajst-2162	64	13	the	the	DET
ajst-2162	64	14	ball	ball	NOUN
ajst-2162	64	15	seat	seat	NOUN
ajst-2162	64	16	is	be	AUX
ajst-2162	64	17	the	the	DET
ajst-2162	64	18	most	most	ADV
ajst-2162	64	19	serious	serious	ADJ
ajst-2162	64	20	,	,	PUNCT
ajst-2162	64	21	with	with	SCONJ
ajst-2162	64	22	the	the	DET
ajst-2162	64	23	maximum	maximum	ADJ
ajst-2162	64	24	erosion	erosion	NOUN
ajst-2162	64	25	wear	wear	NOUN
ajst-2162	64	26	rate	rate	NOUN
ajst-2162	64	27	of	of	ADP
ajst-2162	64	28	1.70	1.70	NUM
ajst-2162	64	29	×	×	NOUN
ajst-2162	64	30	10	10	NUM
ajst-2162	64	31	-	-	SYM
ajst-2162	64	32	5kg/(m2	5kg/(m2	NUM
ajst-2162	64	33	·	·	PUNCT
ajst-2162	64	34	s	s	X
ajst-2162	64	35	)	)	PUNCT
ajst-2162	64	36	,	,	PUNCT
ajst-2162	64	37	the	the	DET
ajst-2162	64	38	erosion	erosion	NOUN
ajst-2162	64	39	of	of	ADP
ajst-2162	64	40	the	the	DET
ajst-2162	64	41	ball	ball	NOUN
ajst-2162	64	42	seat	seat	NOUN
ajst-2162	64	43	with	with	ADP
ajst-2162	64	44	the	the	DET
ajst-2162	64	45	remaining	remain	VERB
ajst-2162	64	46	cone	cone	NOUN
ajst-2162	64	47	angle	angle	NOUN
ajst-2162	64	48	of	of	ADP
ajst-2162	64	49	18	18	NUM
ajst-2162	64	50	°	°	NOUN
ajst-2162	64	51	to	to	ADP
ajst-2162	64	52	25	25	NUM
ajst-2162	64	53	°	°	NOUN
ajst-2162	64	54	is	be	AUX
ajst-2162	64	55	shown	show	VERB
ajst-2162	64	56	in	in	ADP
ajst-2162	64	57	figure	figure	NOUN
ajst-2162	64	58	4	4	NUM
ajst-2162	64	59	:	:	PUNCT
ajst-2162	64	60	figure	figure	VERB
ajst-2162	64	61	4	4	NUM
ajst-2162	64	62	.	.	PUNCT
ajst-2162	64	63	erosion	erosion	NOUN
ajst-2162	64	64	rate	rate	NOUN
ajst-2162	64	65	diagram	diagram	NOUN
ajst-2162	64	66	of	of	ADP
ajst-2162	64	67	cone	cone	NOUN
ajst-2162	64	68	angle	angle	NOUN
ajst-2162	64	69	18	18	NUM
ajst-2162	64	70	°	°	NOUN
ajst-2162	64	71	~25	~25	NOUN
ajst-2162	64	72	°	°	SCONJ
ajst-2162	64	73	the	the	DET
ajst-2162	64	74	erosion	erosion	NOUN
ajst-2162	64	75	rate	rate	NOUN
ajst-2162	64	76	results	result	NOUN
ajst-2162	64	77	of	of	ADP
ajst-2162	64	78	each	each	DET
ajst-2162	64	79	cone	cone	NOUN
ajst-2162	64	80	angle	angle	NOUN
ajst-2162	64	81	of	of	ADP
ajst-2162	64	82	the	the	DET
ajst-2162	64	83	ball	ball	NOUN
ajst-2162	64	84	seat	seat	NOUN
ajst-2162	64	85	can	can	AUX
ajst-2162	64	86	be	be	AUX
ajst-2162	64	87	obtained	obtain	VERB
ajst-2162	64	88	through	through	ADP
ajst-2162	64	89	the	the	DET
ajst-2162	64	90	erosion	erosion	NOUN
ajst-2162	64	91	wear	wear	VERB
ajst-2162	64	92	analysis	analysis	NOUN
ajst-2162	64	93	of	of	ADP
ajst-2162	64	94	the	the	DET
ajst-2162	64	95	ball	ball	NOUN
ajst-2162	64	96	seats	seat	NOUN
ajst-2162	64	97	with	with	ADP
ajst-2162	64	98	different	different	ADJ
ajst-2162	64	99	cone	cone	NOUN
ajst-2162	64	100	angles	angle	NOUN
ajst-2162	64	101	,	,	PUNCT
ajst-2162	64	102	as	as	SCONJ
ajst-2162	64	103	shown	show	VERB
ajst-2162	64	104	in	in	ADP
ajst-2162	64	105	table	table	NOUN
ajst-2162	64	106	2	2	NUM
ajst-2162	64	107	:	:	PUNCT
ajst-2162	64	108	table	table	NOUN
ajst-2162	64	109	2	2	NUM
ajst-2162	64	110	.	.	PUNCT
ajst-2162	64	111	erosion	erosion	NOUN
ajst-2162	64	112	rate	rate	NOUN
ajst-2162	64	113	of	of	ADP
ajst-2162	64	114	each	each	DET
ajst-2162	64	115	cone	cone	NOUN
ajst-2162	64	116	angle	angle	NOUN
ajst-2162	64	117	ball	ball	NOUN
ajst-2162	64	118	seat	seat	NOUN
ajst-2162	64	119	cone	cone	NOUN
ajst-2162	64	120	angle	angle	NOUN
ajst-2162	64	121	/	/	PUNCT
ajst-2162	65	1	°	°	NUM
ajst-2162	65	2	17	17	NUM
ajst-2162	65	3	18	18	NUM
ajst-2162	65	4	19	19	NUM
ajst-2162	65	5	20	20	NUM
ajst-2162	65	6	21	21	NUM
ajst-2162	65	7	22	22	NUM
ajst-2162	65	8	23	23	NUM
ajst-2162	65	9	24	24	NUM
ajst-2162	65	10	25	25	NUM
ajst-2162	65	11	erosion	erosion	NOUN
ajst-2162	65	12	rate	rate	NOUN
ajst-2162	65	13	/×10	/×10	PUNCT
ajst-2162	65	14	-	-	PUNCT
ajst-2162	65	15	5kg/(m2·s	5kg/(m2·s	NUM
ajst-2162	65	16	)	)	PUNCT
ajst-2162	65	17	1.70	1.70	NUM
ajst-2162	65	18	1.75	1.75	NUM
ajst-2162	65	19	2.04	2.04	NUM
ajst-2162	65	20	2.23	2.23	NUM
ajst-2162	65	21	2.45	2.45	NUM
ajst-2162	65	22	2.60	2.60	NUM
ajst-2162	65	23	2.61	2.61	NUM
ajst-2162	65	24	3.21	3.21	NUM
ajst-2162	65	25	3.28	3.28	NUM
ajst-2162	65	26	it	it	PRON
ajst-2162	65	27	can	can	AUX
ajst-2162	65	28	be	be	AUX
ajst-2162	65	29	seen	see	VERB
ajst-2162	65	30	from	from	ADP
ajst-2162	65	31	the	the	DET
ajst-2162	65	32	ball	ball	NOUN
ajst-2162	65	33	seat	seat	NOUN
ajst-2162	65	34	erosion	erosion	NOUN
ajst-2162	65	35	rate	rate	NOUN
ajst-2162	65	36	diagram	diagram	NOUN
ajst-2162	65	37	that	that	SCONJ
ajst-2162	65	38	the	the	DET
ajst-2162	65	39	places	place	NOUN
ajst-2162	65	40	where	where	SCONJ
ajst-2162	65	41	the	the	DET
ajst-2162	65	42	ball	ball	NOUN
ajst-2162	65	43	seat	seat	NOUN
ajst-2162	65	44	is	be	AUX
ajst-2162	65	45	most	most	ADV
ajst-2162	65	46	seriously	seriously	ADV
ajst-2162	65	47	eroded	erode	VERB
ajst-2162	65	48	are	be	AUX
ajst-2162	65	49	basically	basically	ADV
ajst-2162	65	50	the	the	DET
ajst-2162	65	51	same	same	ADJ
ajst-2162	65	52	,	,	PUNCT
ajst-2162	65	53	and	and	CCONJ
ajst-2162	65	54	the	the	DET
ajst-2162	65	55	erosion	erosion	NOUN
ajst-2162	65	56	rate	rate	NOUN
ajst-2162	65	57	increases	increase	NOUN
ajst-2162	65	58	with	with	ADP
ajst-2162	65	59	the	the	DET
ajst-2162	65	60	increase	increase	NOUN
ajst-2162	65	61	of	of	ADP
ajst-2162	65	62	the	the	DET
ajst-2162	65	63	cone	cone	NOUN
ajst-2162	65	64	angle	angle	NOUN
ajst-2162	65	65	of	of	ADP
ajst-2162	65	66	the	the	DET
ajst-2162	65	67	ball	ball	NOUN
ajst-2162	65	68	seat	seat	NOUN
ajst-2162	65	69	.	.	PUNCT
ajst-2162	66	1	therefore	therefore	ADV
ajst-2162	66	2	,	,	PUNCT
ajst-2162	66	3	from	from	ADP
ajst-2162	66	4	the	the	DET
ajst-2162	66	5	aspect	aspect	NOUN
ajst-2162	66	6	of	of	ADP
ajst-2162	66	7	socket	socket	NOUN
ajst-2162	66	8	erosion	erosion	NOUN
ajst-2162	66	9	,	,	PUNCT
ajst-2162	66	10	the	the	DET
ajst-2162	66	11	cone	cone	NOUN
ajst-2162	66	12	angle	angle	NOUN
ajst-2162	66	13	of	of	ADP
ajst-2162	66	14	the	the	DET
ajst-2162	66	15	socket	socket	NOUN
ajst-2162	66	16	should	should	AUX
ajst-2162	66	17	be	be	AUX
ajst-2162	66	18	as	as	ADV
ajst-2162	66	19	small	small	ADJ
ajst-2162	66	20	as	as	ADP
ajst-2162	66	21	possible	possible	ADJ
ajst-2162	66	22	to	to	PART
ajst-2162	66	23	reduce	reduce	VERB
ajst-2162	66	24	socket	socket	NOUN
ajst-2162	66	25	erosion	erosion	NOUN
ajst-2162	66	26	and	and	CCONJ
ajst-2162	66	27	extend	extend	VERB
ajst-2162	66	28	the	the	DET
ajst-2162	66	29	service	service	NOUN
ajst-2162	66	30	life	life	NOUN
ajst-2162	66	31	of	of	ADP
ajst-2162	66	32	the	the	DET
ajst-2162	66	33	socket	socket	NOUN
ajst-2162	66	34	.	.	PUNCT
ajst-2162	67	1	4	4	X
ajst-2162	67	2	.	.	X
ajst-2162	67	3	stress	stress	NOUN
ajst-2162	67	4	analysis	analysis	NOUN
ajst-2162	67	5	of	of	ADP
ajst-2162	67	6	ball	ball	NOUN
ajst-2162	67	7	socket	socket	NOUN
ajst-2162	67	8	structure	structure	NOUN
ajst-2162	67	9	4.1	4.1	NUM
ajst-2162	67	10	.	.	PUNCT
ajst-2162	68	1	finite	finite	PROPN
ajst-2162	68	2	element	element	NOUN
ajst-2162	68	3	model	model	NOUN
ajst-2162	68	4	and	and	CCONJ
ajst-2162	68	5	grid	grid	NOUN
ajst-2162	68	6	division	division	NOUN
ajst-2162	68	7	of	of	ADP
ajst-2162	68	8	ball	ball	NOUN
ajst-2162	68	9	socket	socket	NOUN
ajst-2162	68	10	structure	structure	NOUN
ajst-2162	68	11	according	accord	VERB
ajst-2162	68	12	to	to	ADP
ajst-2162	68	13	the	the	DET
ajst-2162	68	14	specific	specific	ADJ
ajst-2162	68	15	working	working	NOUN
ajst-2162	68	16	conditions	condition	NOUN
ajst-2162	68	17	during	during	ADP
ajst-2162	68	18	fracturing	fracture	VERB
ajst-2162	68	19	,	,	PUNCT
ajst-2162	68	20	the	the	DET
ajst-2162	68	21	fracturing	fracture	VERB
ajst-2162	68	22	sliding	slide	VERB
ajst-2162	68	23	sleeve	sleeve	NOUN
ajst-2162	68	24	is	be	AUX
ajst-2162	68	25	simplified	simplify	VERB
ajst-2162	68	26	.	.	PUNCT
ajst-2162	69	1	the	the	DET
ajst-2162	69	2	design	design	NOUN
ajst-2162	69	3	adopts	adopt	VERB
ajst-2162	69	4	a	a	DET
ajst-2162	69	5	petal	petal	ADJ
ajst-2162	69	6	type	type	NOUN
ajst-2162	69	7	ball	ball	NOUN
ajst-2162	69	8	seat	seat	NOUN
ajst-2162	69	9	structure	structure	NOUN
ajst-2162	69	10	,	,	PUNCT
ajst-2162	69	11	which	which	PRON
ajst-2162	69	12	is	be	AUX
ajst-2162	69	13	composed	compose	VERB
ajst-2162	69	14	of	of	ADP
ajst-2162	69	15	six	six	NUM
ajst-2162	69	16	lobes	lobe	NOUN
ajst-2162	69	17	when	when	SCONJ
ajst-2162	69	18	the	the	DET
ajst-2162	69	19	ball	ball	NOUN
ajst-2162	69	20	seat	seat	NOUN
ajst-2162	69	21	is	be	AUX
ajst-2162	69	22	opened	open	VERB
ajst-2162	69	23	.	.	PUNCT
ajst-2162	70	1	therefore	therefore	ADV
ajst-2162	70	2	,	,	PUNCT
ajst-2162	70	3	the	the	DET
ajst-2162	70	4	model	model	NOUN
ajst-2162	70	5	uses	use	VERB
ajst-2162	70	6	a	a	DET
ajst-2162	70	7	1/6	1/6	NUM
ajst-2162	70	8	calculation	calculation	NOUN
ajst-2162	70	9	model	model	NOUN
ajst-2162	70	10	to	to	PART
ajst-2162	70	11	grid	grid	VERB
ajst-2162	70	12	the	the	DET
ajst-2162	70	13	model	model	NOUN
ajst-2162	70	14	.	.	PUNCT
ajst-2162	71	1	in	in	ADP
ajst-2162	71	2	order	order	NOUN
ajst-2162	71	3	to	to	PART
ajst-2162	71	4	obtain	obtain	VERB
ajst-2162	71	5	a	a	DET
ajst-2162	71	6	higher	high	ADJ
ajst-2162	71	7	quality	quality	NOUN
ajst-2162	71	8	grid	grid	NOUN
ajst-2162	71	9	,	,	PUNCT
ajst-2162	71	10	this	this	DET
ajst-2162	71	11	paper	paper	NOUN
ajst-2162	71	12	uses	use	VERB
ajst-2162	71	13	hypermesh	hypermesh	ADV
ajst-2162	71	14	as	as	ADP
ajst-2162	71	15	the	the	DET
ajst-2162	71	16	preprocessor	preprocessor	NOUN
ajst-2162	71	17	,	,	PUNCT
ajst-2162	71	18	and	and	CCONJ
ajst-2162	71	19	then	then	ADV
ajst-2162	71	20	uses	use	VERB
ajst-2162	71	21	the	the	DET
ajst-2162	71	22	ansys	ansys	PROPN
ajst-2162	71	23	solver	solver	PROPN
ajst-2162	71	24	for	for	ADP
ajst-2162	71	25	calculation	calculation	NOUN
ajst-2162	71	26	and	and	CCONJ
ajst-2162	71	27	analysis	analysis	NOUN
ajst-2162	71	28	.	.	PUNCT
ajst-2162	72	1	the	the	DET
ajst-2162	72	2	ball	ball	NOUN
ajst-2162	72	3	seat	seat	NOUN
ajst-2162	72	4	structure	structure	NOUN
ajst-2162	72	5	model	model	NOUN
ajst-2162	72	6	and	and	CCONJ
ajst-2162	72	7	grid	grid	NOUN
ajst-2162	72	8	are	be	AUX
ajst-2162	72	9	shown	show	VERB
ajst-2162	72	10	in	in	ADP
ajst-2162	72	11	figure	figure	NOUN
ajst-2162	72	12	5	5	NUM
ajst-2162	72	13	.	.	PUNCT
ajst-2162	72	14	figure	figure	NOUN
ajst-2162	72	15	5	5	NUM
ajst-2162	72	16	.	.	PUNCT
ajst-2162	73	1	ball	ball	NOUN
ajst-2162	73	2	socket	socket	NOUN
ajst-2162	73	3	model	model	NOUN
ajst-2162	73	4	and	and	CCONJ
ajst-2162	73	5	grid	grid	NOUN
ajst-2162	73	6	division	division	NOUN
ajst-2162	73	7	164	164	NUM
ajst-2162	73	8	4.2	4.2	NUM
ajst-2162	73	9	.	.	PUNCT
ajst-2162	74	1	model	model	NOUN
ajst-2162	74	2	materials	material	NOUN
ajst-2162	74	3	and	and	CCONJ
ajst-2162	74	4	boundary	boundary	ADJ
ajst-2162	74	5	conditions	condition	NOUN
ajst-2162	74	6	the	the	DET
ajst-2162	74	7	fracturing	fracture	VERB
ajst-2162	74	8	sliding	slide	VERB
ajst-2162	74	9	sleeve	sleeve	NOUN
ajst-2162	74	10	is	be	AUX
ajst-2162	74	11	made	make	VERB
ajst-2162	74	12	of	of	ADP
ajst-2162	74	13	42crmo	42crmo	NUM
ajst-2162	74	14	,	,	PUNCT
ajst-2162	74	15	and	and	CCONJ
ajst-2162	74	16	the	the	DET
ajst-2162	74	17	fracturing	fracturing	NOUN
ajst-2162	74	18	ball	ball	NOUN
ajst-2162	74	19	is	be	AUX
ajst-2162	74	20	made	make	VERB
ajst-2162	74	21	of	of	ADP
ajst-2162	74	22	low	low	ADJ
ajst-2162	74	23	-	-	PUNCT
ajst-2162	74	24	density	density	NOUN
ajst-2162	74	25	composite	composite	ADJ
ajst-2162	74	26	materials	material	NOUN
ajst-2162	74	27	.	.	PUNCT
ajst-2162	75	1	the	the	DET
ajst-2162	75	2	material	material	NOUN
ajst-2162	75	3	performance	performance	NOUN
ajst-2162	75	4	parameters	parameter	NOUN
ajst-2162	75	5	are	be	AUX
ajst-2162	75	6	shown	show	VERB
ajst-2162	75	7	in	in	ADP
ajst-2162	75	8	table	table	NOUN
ajst-2162	75	9	3	3	NUM
ajst-2162	75	10	:	:	PUNCT
ajst-2162	75	11	table	table	NOUN
ajst-2162	75	12	3	3	NUM
ajst-2162	75	13	.	.	PUNCT
ajst-2162	75	14	material	material	NOUN
ajst-2162	75	15	parameters	parameter	NOUN
ajst-2162	75	16	of	of	ADP
ajst-2162	75	17	slip	slip	NOUN
ajst-2162	75	18	sleeve	sleeve	NOUN
ajst-2162	75	19	and	and	CCONJ
ajst-2162	75	20	fracturing	fracture	VERB
ajst-2162	75	21	ball	ball	NOUN
ajst-2162	75	22	material	material	NOUN
ajst-2162	75	23	science	science	NOUN
ajst-2162	75	24	elastic	elastic	ADJ
ajst-2162	75	25	modulus	modulus	NOUN
ajst-2162	75	26	/gpa	/gpa	NOUN
ajst-2162	75	27	poisson	poisson	NOUN
ajst-2162	75	28	's	's	PART
ajst-2162	75	29	ratio	ratio	NOUN
ajst-2162	75	30	yield	yield	NOUN
ajst-2162	75	31	strength	strength	NOUN
ajst-2162	75	32	/mpa	/mpa	PUNCT
ajst-2162	75	33	tangent	tangent	ADJ
ajst-2162	75	34	modulus	modulus	NOUN
ajst-2162	75	35	/gpa	/gpa	NOUN
ajst-2162	75	36	density	density	NOUN
ajst-2162	75	37	/kg.m-3	/kg.m-3	PUNCT
ajst-2162	75	38	ball	ball	NOUN
ajst-2162	75	39	socket	socket	VERB
ajst-2162	75	40	212	212	NUM
ajst-2162	75	41	0.28	0.28	NUM
ajst-2162	75	42	930	930	NUM
ajst-2162	75	43	6.1	6.1	NUM
ajst-2162	75	44	7830	7830	NUM
ajst-2162	75	45	fracturing	fracturing	NOUN
ajst-2162	75	46	ball	ball	NOUN
ajst-2162	75	47	90	90	NUM
ajst-2162	75	48	0.33	0.33	NUM
ajst-2162	75	49	355	355	NUM
ajst-2162	75	50	1.9	1.9	NUM
ajst-2162	75	51	1400	1400	NUM
ajst-2162	75	52	the	the	DET
ajst-2162	75	53	boundary	boundary	ADJ
ajst-2162	75	54	conditions	condition	NOUN
ajst-2162	75	55	are	be	AUX
ajst-2162	75	56	set	set	VERB
ajst-2162	75	57	as	as	SCONJ
ajst-2162	75	58	follows	follow	VERB
ajst-2162	75	59	:	:	PUNCT
ajst-2162	75	60	(	(	PUNCT
ajst-2162	75	61	1	1	X
ajst-2162	75	62	)	)	PUNCT
ajst-2162	75	63	the	the	DET
ajst-2162	75	64	lower	low	ADJ
ajst-2162	75	65	end	end	NOUN
ajst-2162	75	66	of	of	ADP
ajst-2162	75	67	the	the	DET
ajst-2162	75	68	model	model	NOUN
ajst-2162	75	69	is	be	AUX
ajst-2162	75	70	completely	completely	ADV
ajst-2162	75	71	fixed	fix	VERB
ajst-2162	75	72	;	;	PUNCT
ajst-2162	75	73	(	(	PUNCT
ajst-2162	75	74	2	2	X
ajst-2162	75	75	)	)	PUNCT
ajst-2162	75	76	the	the	DET
ajst-2162	75	77	contact	contact	NOUN
ajst-2162	75	78	surface	surface	NOUN
ajst-2162	75	79	between	between	ADP
ajst-2162	75	80	the	the	DET
ajst-2162	75	81	fracturing	fracturing	NOUN
ajst-2162	75	82	ball	ball	NOUN
ajst-2162	75	83	and	and	CCONJ
ajst-2162	75	84	the	the	DET
ajst-2162	75	85	ball	ball	NOUN
ajst-2162	75	86	seat	seat	NOUN
ajst-2162	75	87	is	be	AUX
ajst-2162	75	88	set	set	VERB
ajst-2162	75	89	up	up	ADP
ajst-2162	75	90	to	to	ADP
ajst-2162	75	91	contact	contact	NOUN
ajst-2162	75	92	;	;	PUNCT
ajst-2162	75	93	(	(	PUNCT
ajst-2162	75	94	3	3	X
ajst-2162	75	95	)	)	PUNCT
ajst-2162	75	96	apply	apply	VERB
ajst-2162	75	97	50mpa	50mpa	NOUN
ajst-2162	75	98	pressure	pressure	NOUN
ajst-2162	75	99	on	on	ADP
ajst-2162	75	100	the	the	DET
ajst-2162	75	101	upper	upper	ADJ
ajst-2162	75	102	surface	surface	NOUN
ajst-2162	75	103	of	of	ADP
ajst-2162	75	104	the	the	DET
ajst-2162	75	105	fracturing	fracturing	NOUN
ajst-2162	75	106	ball	ball	NOUN
ajst-2162	75	107	and	and	CCONJ
ajst-2162	75	108	the	the	DET
ajst-2162	75	109	upper	upper	ADJ
ajst-2162	75	110	surface	surface	NOUN
ajst-2162	75	111	of	of	ADP
ajst-2162	75	112	the	the	DET
ajst-2162	75	113	ball	ball	NOUN
ajst-2162	75	114	socket	socket	NOUN
ajst-2162	75	115	at	at	ADP
ajst-2162	75	116	the	the	DET
ajst-2162	75	117	same	same	ADJ
ajst-2162	75	118	time	time	NOUN
ajst-2162	75	119	;	;	PUNCT
ajst-2162	75	120	a	a	DET
ajst-2162	75	121	pressure	pressure	NOUN
ajst-2162	75	122	difference	difference	NOUN
ajst-2162	75	123	of	of	ADP
ajst-2162	75	124	50mpa	50mpa	NOUN
ajst-2162	75	125	is	be	AUX
ajst-2162	75	126	formed	form	VERB
ajst-2162	75	127	between	between	ADP
ajst-2162	75	128	the	the	DET
ajst-2162	75	129	upper	upper	ADJ
ajst-2162	75	130	and	and	CCONJ
ajst-2162	75	131	lower	low	ADJ
ajst-2162	75	132	parts	part	NOUN
ajst-2162	75	133	of	of	ADP
ajst-2162	75	134	the	the	DET
ajst-2162	75	135	ball	ball	NOUN
ajst-2162	75	136	seat	seat	NOUN
ajst-2162	75	137	.	.	PUNCT
ajst-2162	76	1	4.3	4.3	NUM
ajst-2162	76	2	.	.	PUNCT
ajst-2162	77	1	finite	finite	PROPN
ajst-2162	77	2	element	element	NOUN
ajst-2162	77	3	analysis	analysis	NOUN
ajst-2162	77	4	results	result	NOUN
ajst-2162	77	5	of	of	ADP
ajst-2162	77	6	ball	ball	NOUN
ajst-2162	77	7	socket	socket	NOUN
ajst-2162	77	8	structure	structure	NOUN
ajst-2162	77	9	the	the	DET
ajst-2162	77	10	von	von	PROPN
ajst-2162	77	11	mises	mises	PROPN
ajst-2162	77	12	stress	stress	NOUN
ajst-2162	77	13	of	of	ADP
ajst-2162	77	14	the	the	DET
ajst-2162	77	15	ball	ball	NOUN
ajst-2162	77	16	socket	socket	NOUN
ajst-2162	77	17	and	and	CCONJ
ajst-2162	77	18	the	the	DET
ajst-2162	77	19	contact	contact	NOUN
ajst-2162	77	20	stress	stress	NOUN
ajst-2162	77	21	of	of	ADP
ajst-2162	77	22	the	the	DET
ajst-2162	77	23	contact	contact	NOUN
ajst-2162	77	24	surface	surface	NOUN
ajst-2162	77	25	under	under	ADP
ajst-2162	77	26	different	different	ADJ
ajst-2162	77	27	cone	cone	NOUN
ajst-2162	77	28	angles	angle	NOUN
ajst-2162	77	29	are	be	AUX
ajst-2162	77	30	analyzed	analyze	VERB
ajst-2162	77	31	respectively	respectively	ADV
ajst-2162	77	32	.	.	PUNCT
ajst-2162	78	1	the	the	DET
ajst-2162	78	2	stress	stress	NOUN
ajst-2162	78	3	nephogram	nephogram	NOUN
ajst-2162	78	4	is	be	AUX
ajst-2162	78	5	shown	show	VERB
ajst-2162	78	6	in	in	ADP
ajst-2162	78	7	the	the	DET
ajst-2162	78	8	following	follow	VERB
ajst-2162	78	9	figure	figure	NOUN
ajst-2162	78	10	:	:	PUNCT
ajst-2162	78	11	a.	a.	NOUN
ajst-2162	78	12	cone	cone	PROPN
ajst-2162	78	13	angle	angle	NOUN
ajst-2162	78	14	17	17	NUM
ajst-2162	78	15	°	°	PROPN
ajst-2162	78	16	b.	b.	PROPN
ajst-2162	78	17	cone	cone	PROPN
ajst-2162	78	18	angle	angle	PROPN
ajst-2162	78	19	18	18	NUM
ajst-2162	78	20	°	°	PROPN
ajst-2162	78	21	c.	c.	PROPN
ajst-2162	78	22	cone	cone	PROPN
ajst-2162	78	23	angle	angle	NOUN
ajst-2162	78	24	19	19	NUM
ajst-2162	79	1	°	°	PROPN
ajst-2162	79	2	d.	d.	PROPN
ajst-2162	79	3	cone	cone	PROPN
ajst-2162	79	4	angle	angle	PROPN
ajst-2162	79	5	20	20	NUM
ajst-2162	79	6	°	°	PROPN
ajst-2162	79	7	e.	e.	PROPN
ajst-2162	79	8	cone	cone	PROPN
ajst-2162	79	9	angle	angle	PROPN
ajst-2162	79	10	21	21	NUM
ajst-2162	79	11	°	°	PROPN
ajst-2162	79	12	f.	f.	PROPN
ajst-2162	79	13	cone	cone	PROPN
ajst-2162	79	14	angle	angle	PROPN
ajst-2162	79	15	22	22	NUM
ajst-2162	79	16	°	°	PROPN
ajst-2162	79	17	h.	h.	PROPN
ajst-2162	79	18	cone	cone	PROPN
ajst-2162	79	19	angle	angle	NOUN
ajst-2162	79	20	23	23	NUM
ajst-2162	79	21	°	°	PROPN
ajst-2162	79	22	i.	i.	PROPN
ajst-2162	79	23	cone	cone	PROPN
ajst-2162	79	24	angle	angle	PROPN
ajst-2162	79	25	24	24	NUM
ajst-2162	79	26	°	°	PROPN
ajst-2162	79	27	j.	j.	PROPN
ajst-2162	79	28	cone	cone	PROPN
ajst-2162	79	29	angle	angle	PROPN
ajst-2162	79	30	25	25	NUM
ajst-2162	79	31	°	°	PROPN
ajst-2162	79	32	figure	figure	NOUN
ajst-2162	79	33	6	6	NUM
ajst-2162	79	34	.	.	PUNCT
ajst-2162	80	1	stress	stress	NOUN
ajst-2162	80	2	nephogram	nephogram	NOUN
ajst-2162	80	3	of	of	ADP
ajst-2162	80	4	ball	ball	NOUN
ajst-2162	80	5	socket	socket	NOUN
ajst-2162	80	6	with	with	ADP
ajst-2162	80	7	cone	cone	NOUN
ajst-2162	80	8	angle	angle	NOUN
ajst-2162	80	9	of	of	ADP
ajst-2162	80	10	17	17	NUM
ajst-2162	80	11	°	°	NOUN
ajst-2162	80	12	~25	~25	NOUN
ajst-2162	80	13	°	°	NOUN
ajst-2162	81	1	according	accord	VERB
ajst-2162	81	2	to	to	ADP
ajst-2162	81	3	the	the	DET
ajst-2162	81	4	finite	finite	ADJ
ajst-2162	81	5	element	element	NOUN
ajst-2162	81	6	analysis	analysis	NOUN
ajst-2162	81	7	of	of	ADP
ajst-2162	81	8	the	the	DET
ajst-2162	81	9	ball	ball	NOUN
ajst-2162	81	10	socket	socket	NOUN
ajst-2162	81	11	structure	structure	NOUN
ajst-2162	81	12	with	with	ADP
ajst-2162	81	13	cone	cone	NOUN
ajst-2162	81	14	angles	angle	NOUN
ajst-2162	81	15	from	from	ADP
ajst-2162	81	16	17	17	NUM
ajst-2162	81	17	°	°	NOUN
ajst-2162	81	18	to	to	ADP
ajst-2162	81	19	25	25	NUM
ajst-2162	81	20	°	°	NOUN
ajst-2162	81	21	,	,	PUNCT
ajst-2162	81	22	as	as	SCONJ
ajst-2162	81	23	shown	show	VERB
ajst-2162	81	24	in	in	ADP
ajst-2162	81	25	figure	figure	NOUN
ajst-2162	81	26	6	6	NUM
ajst-2162	81	27	,	,	PUNCT
ajst-2162	81	28	as	as	ADP
ajst-2162	81	29	the	the	DET
ajst-2162	81	30	cone	cone	NOUN
ajst-2162	81	31	angle	angle	NOUN
ajst-2162	81	32	of	of	ADP
ajst-2162	81	33	the	the	DET
ajst-2162	81	34	ball	ball	NOUN
ajst-2162	81	35	socket	socket	NOUN
ajst-2162	81	36	increases	increase	NOUN
ajst-2162	81	37	,	,	PUNCT
ajst-2162	81	38	the	the	DET
ajst-2162	81	39	contact	contact	NOUN
ajst-2162	81	40	position	position	NOUN
ajst-2162	81	41	between	between	ADP
ajst-2162	81	42	the	the	DET
ajst-2162	81	43	fracturing	fracturing	NOUN
ajst-2162	81	44	ball	ball	NOUN
ajst-2162	81	45	and	and	CCONJ
ajst-2162	81	46	the	the	DET
ajst-2162	81	47	ball	ball	NOUN
ajst-2162	81	48	socket	socket	NOUN
ajst-2162	81	49	also	also	ADV
ajst-2162	81	50	moves	move	VERB
ajst-2162	81	51	downward	downward	ADV
ajst-2162	81	52	.	.	PUNCT
ajst-2162	82	1	the	the	DET
ajst-2162	82	2	maximum	maximum	PROPN
ajst-2162	82	3	von	von	PROPN
ajst-2162	82	4	mises	mises	PROPN
ajst-2162	82	5	stress	stress	NOUN
ajst-2162	82	6	and	and	CCONJ
ajst-2162	82	7	contact	contact	NOUN
ajst-2162	82	8	surface	surface	NOUN
ajst-2162	82	9	contact	contact	NOUN
ajst-2162	82	10	stress	stress	NOUN
ajst-2162	82	11	of	of	ADP
ajst-2162	82	12	the	the	DET
ajst-2162	82	13	ball	ball	NOUN
ajst-2162	82	14	socket	socket	NOUN
ajst-2162	82	15	structure	structure	NOUN
ajst-2162	82	16	under	under	ADP
ajst-2162	82	17	each	each	DET
ajst-2162	82	18	cone	cone	NOUN
ajst-2162	82	19	angle	angle	NOUN
ajst-2162	82	20	are	be	AUX
ajst-2162	82	21	shown	show	VERB
ajst-2162	82	22	in	in	ADP
ajst-2162	82	23	table	table	NOUN
ajst-2162	82	24	4	4	NUM
ajst-2162	82	25	:	:	PUNCT
ajst-2162	82	26	table	table	NOUN
ajst-2162	82	27	4	4	NUM
ajst-2162	82	28	.	.	PUNCT
ajst-2162	82	29	von	von	PROPN
ajst-2162	82	30	mises	mises	PROPN
ajst-2162	82	31	stress	stress	VERB
ajst-2162	82	32	and	and	CCONJ
ajst-2162	82	33	contact	contact	NOUN
ajst-2162	82	34	stress	stress	NOUN
ajst-2162	82	35	of	of	ADP
ajst-2162	82	36	ball	ball	NOUN
ajst-2162	82	37	seat	seat	NOUN
ajst-2162	82	38	structure	structure	NOUN
ajst-2162	82	39	with	with	ADP
ajst-2162	82	40	cone	cone	NOUN
ajst-2162	82	41	angle	angle	NOUN
ajst-2162	82	42	of	of	ADP
ajst-2162	82	43	17	17	NUM
ajst-2162	82	44	°	°	NOUN
ajst-2162	82	45	~25	~25	NOUN
ajst-2162	82	46	°	°	NUM
ajst-2162	82	47	cone	cone	PROPN
ajst-2162	82	48	angle/	angle/	NUM
ajst-2162	82	49	°	°	NUM
ajst-2162	82	50	17	17	NUM
ajst-2162	82	51	18	18	NUM
ajst-2162	82	52	19	19	NUM
ajst-2162	82	53	20	20	NUM
ajst-2162	82	54	21	21	NUM
ajst-2162	82	55	22	22	NUM
ajst-2162	82	56	23	23	NUM
ajst-2162	82	57	24	24	NUM
ajst-2162	82	58	25	25	NUM
ajst-2162	82	59	von	von	PROPN
ajst-2162	82	60	-	-	PUNCT
ajst-2162	82	61	mises	mises	PROPN
ajst-2162	82	62	stress	stress	PROPN
ajst-2162	82	63	/	/	SYM
ajst-2162	82	64	mpa	mpa	PROPN
ajst-2162	82	65	1045.71	1045.71	NUM
ajst-2162	82	66	990.02	990.02	NUM
ajst-2162	82	67	1037.65	1037.65	NUM
ajst-2162	82	68	891.74	891.74	NUM
ajst-2162	82	69	965.88	965.88	NUM
ajst-2162	82	70	884.01	884.01	NUM
ajst-2162	82	71	896.95	896.95	NUM
ajst-2162	82	72	831.14	831.14	NUM
ajst-2162	82	73	874.93	874.93	NUM
ajst-2162	82	74	contact	contact	NOUN
ajst-2162	82	75	stress	stress	NOUN
ajst-2162	82	76	/	/	SYM
ajst-2162	82	77	mpa	mpa	PROPN
ajst-2162	83	1	967.24	967.24	NUM
ajst-2162	83	2	926.79	926.79	NUM
ajst-2162	83	3	968.57	968.57	NUM
ajst-2162	83	4	888.44	888.44	NUM
ajst-2162	83	5	921.86	921.86	NUM
ajst-2162	83	6	890.38	890.38	NUM
ajst-2162	83	7	932.88	932.88	NUM
ajst-2162	83	8	1093.22	1093.22	NUM
ajst-2162	83	9	1182.44	1182.44	NUM
ajst-2162	83	10	  	  	SPACE
ajst-2162	83	11	165	165	NUM
ajst-2162	83	12	  	  	SPACE
ajst-2162	83	13	figure	figure	NOUN
ajst-2162	83	14	7	7	NUM
ajst-2162	83	15	.	.	PUNCT
ajst-2162	84	1	von	von	PROPN
ajst-2162	84	2	mises	mises	PROPN
ajst-2162	84	3	stress	stress	VERB
ajst-2162	84	4	and	and	CCONJ
ajst-2162	84	5	contact	contact	NOUN
ajst-2162	84	6	stress	stress	NOUN
ajst-2162	84	7	diagram	diagram	NOUN
ajst-2162	84	8	of	of	ADP
ajst-2162	84	9	ball	ball	NOUN
ajst-2162	84	10	seat	seat	NOUN
ajst-2162	84	11	structure	structure	NOUN
ajst-2162	84	12	with	with	ADP
ajst-2162	84	13	cone	cone	NOUN
ajst-2162	84	14	angle	angle	NOUN
ajst-2162	84	15	of	of	ADP
ajst-2162	84	16	17	17	NUM
ajst-2162	84	17	°	°	NOUN
ajst-2162	84	18	~25	~25	NUM
ajst-2162	84	19	°	°	ADP
ajst-2162	85	1	it	it	PRON
ajst-2162	85	2	can	can	AUX
ajst-2162	85	3	be	be	AUX
ajst-2162	85	4	seen	see	VERB
ajst-2162	85	5	from	from	ADP
ajst-2162	85	6	the	the	DET
ajst-2162	85	7	finite	finite	ADJ
ajst-2162	85	8	element	element	NOUN
ajst-2162	85	9	analysis	analysis	NOUN
ajst-2162	85	10	results	result	NOUN
ajst-2162	85	11	of	of	ADP
ajst-2162	85	12	the	the	DET
ajst-2162	85	13	ball	ball	NOUN
ajst-2162	85	14	seat	seat	NOUN
ajst-2162	85	15	structure	structure	NOUN
ajst-2162	85	16	shown	show	VERB
ajst-2162	85	17	in	in	ADP
ajst-2162	85	18	figure	figure	NOUN
ajst-2162	85	19	7	7	NUM
ajst-2162	85	20	that	that	SCONJ
ajst-2162	85	21	in	in	ADP
ajst-2162	85	22	the	the	DET
ajst-2162	85	23	von	von	PROPN
ajst-2162	85	24	mises	mises	PROPN
ajst-2162	85	25	stress	stress	VERB
ajst-2162	85	26	analysis	analysis	NOUN
ajst-2162	85	27	of	of	ADP
ajst-2162	85	28	the	the	DET
ajst-2162	85	29	ball	ball	NOUN
ajst-2162	85	30	seat	seat	NOUN
ajst-2162	85	31	,	,	PUNCT
ajst-2162	85	32	the	the	DET
ajst-2162	85	33	mises	mise	NOUN
ajst-2162	85	34	stress	stress	VERB
ajst-2162	85	35	generally	generally	ADV
ajst-2162	85	36	decreases	decrease	VERB
ajst-2162	85	37	with	with	ADP
ajst-2162	85	38	the	the	DET
ajst-2162	85	39	increase	increase	NOUN
ajst-2162	85	40	of	of	ADP
ajst-2162	85	41	the	the	DET
ajst-2162	85	42	cone	cone	NOUN
ajst-2162	85	43	angle	angle	NOUN
ajst-2162	85	44	,	,	PUNCT
ajst-2162	85	45	and	and	CCONJ
ajst-2162	85	46	there	there	PRON
ajst-2162	85	47	are	be	VERB
ajst-2162	85	48	five	five	NUM
ajst-2162	85	49	cases	case	NOUN
ajst-2162	85	50	where	where	SCONJ
ajst-2162	85	51	the	the	DET
ajst-2162	85	52	stress	stress	NOUN
ajst-2162	85	53	does	do	AUX
ajst-2162	85	54	not	not	PART
ajst-2162	85	55	exceed	exceed	VERB
ajst-2162	85	56	the	the	DET
ajst-2162	85	57	yield	yield	NOUN
ajst-2162	85	58	strength	strength	NOUN
ajst-2162	85	59	of	of	ADP
ajst-2162	85	60	the	the	DET
ajst-2162	85	61	ball	ball	NOUN
ajst-2162	85	62	seat	seat	NOUN
ajst-2162	85	63	930mpa	930mpa	NUM
ajst-2162	85	64	,	,	PUNCT
ajst-2162	85	65	namely	namely	ADV
ajst-2162	85	66	,	,	PUNCT
ajst-2162	85	67	the	the	DET
ajst-2162	85	68	cone	cone	NOUN
ajst-2162	85	69	angle	angle	NOUN
ajst-2162	85	70	of	of	ADP
ajst-2162	85	71	the	the	DET
ajst-2162	85	72	ball	ball	NOUN
ajst-2162	85	73	seat	seat	NOUN
ajst-2162	85	74	is	be	AUX
ajst-2162	85	75	20	20	NUM
ajst-2162	85	76	°	°	NOUN
ajst-2162	85	77	,	,	PUNCT
ajst-2162	85	78	22	22	NUM
ajst-2162	85	79	°	°	NOUN
ajst-2162	85	80	,	,	PUNCT
ajst-2162	85	81	23	23	NUM
ajst-2162	85	82	°	°	NOUN
ajst-2162	85	83	,	,	PUNCT
ajst-2162	85	84	24	24	NUM
ajst-2162	85	85	°	°	NOUN
ajst-2162	85	86	and	and	CCONJ
ajst-2162	85	87	25	25	NUM
ajst-2162	85	88	°	°	NOUN
ajst-2162	85	89	.	.	PUNCT
ajst-2162	86	1	with	with	ADP
ajst-2162	86	2	the	the	DET
ajst-2162	86	3	increase	increase	NOUN
ajst-2162	86	4	of	of	ADP
ajst-2162	86	5	cone	cone	NOUN
ajst-2162	86	6	angle	angle	NOUN
ajst-2162	86	7	,	,	PUNCT
ajst-2162	86	8	the	the	DET
ajst-2162	86	9	contact	contact	NOUN
ajst-2162	86	10	stress	stress	NOUN
ajst-2162	86	11	decreases	decrease	VERB
ajst-2162	86	12	first	first	ADV
ajst-2162	86	13	and	and	CCONJ
ajst-2162	86	14	then	then	ADV
ajst-2162	86	15	increases	increase	VERB
ajst-2162	86	16	.	.	PUNCT
ajst-2162	87	1	there	there	PRON
ajst-2162	87	2	are	be	VERB
ajst-2162	87	3	four	four	NUM
ajst-2162	87	4	cases	case	NOUN
ajst-2162	87	5	that	that	PRON
ajst-2162	87	6	do	do	AUX
ajst-2162	87	7	not	not	PART
ajst-2162	87	8	exceed	exceed	VERB
ajst-2162	87	9	the	the	DET
ajst-2162	87	10	yield	yield	NOUN
ajst-2162	87	11	strength	strength	NOUN
ajst-2162	87	12	of	of	ADP
ajst-2162	87	13	the	the	DET
ajst-2162	87	14	socket	socket	NOUN
ajst-2162	87	15	,	,	PUNCT
ajst-2162	87	16	namely	namely	ADV
ajst-2162	87	17	,	,	PUNCT
ajst-2162	87	18	the	the	DET
ajst-2162	87	19	cone	cone	NOUN
ajst-2162	87	20	angle	angle	NOUN
ajst-2162	87	21	of	of	ADP
ajst-2162	87	22	the	the	DET
ajst-2162	87	23	socket	socket	NOUN
ajst-2162	87	24	is	be	AUX
ajst-2162	87	25	18	18	NUM
ajst-2162	87	26	°	°	NOUN
ajst-2162	87	27	,	,	PUNCT
ajst-2162	87	28	20	20	NUM
ajst-2162	87	29	°	°	NOUN
ajst-2162	87	30	,	,	PUNCT
ajst-2162	87	31	21	21	NUM
ajst-2162	87	32	°	°	NUM
ajst-2162	87	33	and	and	CCONJ
ajst-2162	87	34	22	22	NUM
ajst-2162	87	35	°	°	NOUN
ajst-2162	87	36	.	.	PUNCT
ajst-2162	87	37	to	to	PART
ajst-2162	87	38	sum	sum	VERB
ajst-2162	87	39	up	up	ADP
ajst-2162	87	40	,	,	PUNCT
ajst-2162	87	41	there	there	PRON
ajst-2162	87	42	are	be	VERB
ajst-2162	87	43	two	two	NUM
ajst-2162	87	44	cases	case	NOUN
ajst-2162	87	45	where	where	SCONJ
ajst-2162	87	46	the	the	DET
ajst-2162	87	47	cone	cone	NOUN
ajst-2162	87	48	angle	angle	NOUN
ajst-2162	87	49	of	of	ADP
ajst-2162	87	50	the	the	DET
ajst-2162	87	51	ball	ball	NOUN
ajst-2162	87	52	seat	seat	NOUN
ajst-2162	87	53	meets	meet	VERB
ajst-2162	87	54	the	the	DET
ajst-2162	87	55	structural	structural	ADJ
ajst-2162	87	56	strength	strength	NOUN
ajst-2162	87	57	requirements	requirement	NOUN
ajst-2162	87	58	of	of	ADP
ajst-2162	87	59	the	the	DET
ajst-2162	87	60	ball	ball	NOUN
ajst-2162	87	61	seat	seat	NOUN
ajst-2162	87	62	,	,	PUNCT
ajst-2162	87	63	namely	namely	ADV
ajst-2162	87	64	,	,	PUNCT
ajst-2162	87	65	the	the	DET
ajst-2162	87	66	cone	cone	NOUN
ajst-2162	87	67	angle	angle	NOUN
ajst-2162	87	68	is	be	AUX
ajst-2162	87	69	20	20	NUM
ajst-2162	87	70	°	°	NUM
ajst-2162	87	71	and	and	CCONJ
ajst-2162	87	72	the	the	DET
ajst-2162	87	73	cone	cone	NOUN
ajst-2162	87	74	angle	angle	NOUN
ajst-2162	87	75	is	be	AUX
ajst-2162	87	76	22	22	NUM
ajst-2162	87	77	°	°	NOUN
ajst-2162	87	78	.	.	PROPN
ajst-2162	88	1	5	5	NUM
ajst-2162	88	2	.	.	X
ajst-2162	88	3	summary	summary	NOUN
ajst-2162	88	4	according	accord	VERB
ajst-2162	88	5	to	to	ADP
ajst-2162	88	6	the	the	DET
ajst-2162	88	7	stress	stress	NOUN
ajst-2162	88	8	analysis	analysis	NOUN
ajst-2162	88	9	of	of	ADP
ajst-2162	88	10	the	the	DET
ajst-2162	88	11	ball	ball	NOUN
ajst-2162	88	12	socket	socket	NOUN
ajst-2162	88	13	structures	structure	NOUN
ajst-2162	88	14	with	with	ADP
ajst-2162	88	15	different	different	ADJ
ajst-2162	88	16	cone	cone	NOUN
ajst-2162	88	17	angles	angle	NOUN
ajst-2162	88	18	,	,	PUNCT
ajst-2162	88	19	the	the	DET
ajst-2162	88	20	cone	cone	NOUN
ajst-2162	88	21	angles	angle	NOUN
ajst-2162	88	22	of	of	ADP
ajst-2162	88	23	the	the	DET
ajst-2162	88	24	full	full	ADJ
ajst-2162	88	25	ball	ball	NOUN
ajst-2162	88	26	socket	socket	NOUN
ajst-2162	88	27	structure	structure	NOUN
ajst-2162	88	28	strength	strength	NOUN
ajst-2162	88	29	are	be	AUX
ajst-2162	88	30	20	20	NUM
ajst-2162	88	31	°	°	NUM
ajst-2162	88	32	and	and	CCONJ
ajst-2162	88	33	22	22	NUM
ajst-2162	88	34	°	°	NOUN
ajst-2162	88	35	.	.	PUNCT
ajst-2162	89	1	however	however	ADV
ajst-2162	89	2	,	,	PUNCT
ajst-2162	89	3	combined	combine	VERB
ajst-2162	89	4	with	with	ADP
ajst-2162	89	5	the	the	DET
ajst-2162	89	6	erosion	erosion	NOUN
ajst-2162	89	7	analysis	analysis	NOUN
ajst-2162	89	8	of	of	ADP
ajst-2162	89	9	the	the	DET
ajst-2162	89	10	ball	ball	NOUN
ajst-2162	89	11	socket	socket	NOUN
ajst-2162	89	12	,	,	PUNCT
ajst-2162	89	13	the	the	DET
ajst-2162	89	14	erosion	erosion	NOUN
ajst-2162	89	15	strength	strength	NOUN
ajst-2162	89	16	of	of	ADP
ajst-2162	89	17	the	the	DET
ajst-2162	89	18	ball	ball	NOUN
ajst-2162	89	19	socket	socket	NOUN
ajst-2162	89	20	with	with	ADP
ajst-2162	89	21	a	a	DET
ajst-2162	89	22	cone	cone	NOUN
ajst-2162	89	23	angle	angle	NOUN
ajst-2162	89	24	of	of	ADP
ajst-2162	89	25	20	20	NUM
ajst-2162	89	26	°	°	NOUN
ajst-2162	89	27	is	be	AUX
ajst-2162	89	28	less	less	ADJ
ajst-2162	89	29	than	than	ADP
ajst-2162	89	30	that	that	PRON
ajst-2162	89	31	of	of	ADP
ajst-2162	89	32	the	the	DET
ajst-2162	89	33	ball	ball	NOUN
ajst-2162	89	34	socket	socket	NOUN
ajst-2162	89	35	with	with	ADP
ajst-2162	89	36	a	a	DET
ajst-2162	89	37	cone	cone	NOUN
ajst-2162	89	38	angle	angle	NOUN
ajst-2162	89	39	of	of	ADP
ajst-2162	89	40	22	22	NUM
ajst-2162	89	41	°	°	NOUN
ajst-2162	89	42	.	.	PUNCT
ajst-2162	90	1	therefore	therefore	ADV
ajst-2162	90	2	,	,	PUNCT
ajst-2162	90	3	the	the	DET
ajst-2162	90	4	ball	ball	NOUN
ajst-2162	90	5	socket	socket	NOUN
ajst-2162	90	6	structure	structure	NOUN
ajst-2162	90	7	with	with	ADP
ajst-2162	90	8	a	a	DET
ajst-2162	90	9	cone	cone	NOUN
ajst-2162	90	10	angle	angle	NOUN
ajst-2162	90	11	of	of	ADP
ajst-2162	90	12	20	20	NUM
ajst-2162	90	13	°	°	NOUN
ajst-2162	90	14	has	have	VERB
ajst-2162	90	15	a	a	DET
ajst-2162	90	16	higher	high	ADJ
ajst-2162	90	17	erosion	erosion	NOUN
ajst-2162	90	18	life	life	NOUN
ajst-2162	90	19	than	than	ADP
ajst-2162	90	20	that	that	PRON
ajst-2162	90	21	of	of	ADP
ajst-2162	90	22	the	the	DET
ajst-2162	90	23	ball	ball	NOUN
ajst-2162	90	24	socket	socket	NOUN
ajst-2162	90	25	structure	structure	NOUN
ajst-2162	90	26	with	with	ADP
ajst-2162	90	27	a	a	DET
ajst-2162	90	28	cone	cone	NOUN
ajst-2162	90	29	angle	angle	NOUN
ajst-2162	90	30	of	of	ADP
ajst-2162	90	31	22	22	NUM
ajst-2162	90	32	°	°	NOUN
ajst-2162	90	33	.	.	PUNCT
ajst-2162	91	1	therefore	therefore	ADV
ajst-2162	91	2	,	,	PUNCT
ajst-2162	91	3	under	under	ADP
ajst-2162	91	4	the	the	DET
ajst-2162	91	5	condition	condition	NOUN
ajst-2162	91	6	that	that	SCONJ
ajst-2162	91	7	the	the	DET
ajst-2162	91	8	cone	cone	NOUN
ajst-2162	91	9	angles	angle	NOUN
ajst-2162	91	10	of	of	ADP
ajst-2162	91	11	the	the	DET
ajst-2162	91	12	two	two	NUM
ajst-2162	91	13	types	type	NOUN
ajst-2162	91	14	of	of	ADP
ajst-2162	91	15	sockets	socket	NOUN
ajst-2162	91	16	meet	meet	VERB
ajst-2162	91	17	the	the	DET
ajst-2162	91	18	structural	structural	ADJ
ajst-2162	91	19	strength	strength	NOUN
ajst-2162	91	20	,	,	PUNCT
ajst-2162	91	21	20	20	NUM
ajst-2162	91	22	°	°	NOUN
ajst-2162	91	23	with	with	ADP
ajst-2162	91	24	lower	low	ADJ
ajst-2162	91	25	erosion	erosion	NOUN
ajst-2162	91	26	strength	strength	NOUN
ajst-2162	91	27	is	be	AUX
ajst-2162	91	28	selected	select	VERB
ajst-2162	91	29	as	as	ADP
ajst-2162	91	30	the	the	DET
ajst-2162	91	31	selection	selection	NOUN
ajst-2162	91	32	standard	standard	NOUN
ajst-2162	91	33	of	of	ADP
ajst-2162	91	34	the	the	DET
ajst-2162	91	35	cone	cone	NOUN
ajst-2162	91	36	angle	angle	NOUN
ajst-2162	91	37	of	of	ADP
ajst-2162	91	38	the	the	DET
ajst-2162	91	39	socket	socket	NOUN
ajst-2162	91	40	.	.	PUNCT
ajst-2162	92	1	acknowledgment	acknowledgment	NOUN
ajst-2162	92	2	supported	support	VERB
ajst-2162	92	3	by	by	ADP
ajst-2162	92	4	the	the	DET
ajst-2162	92	5	"	"	PUNCT
ajst-2162	92	6	13th	13th	ADJ
ajst-2162	92	7	five	five	NUM
ajst-2162	92	8	year	year	NOUN
ajst-2162	92	9	plan	plan	NOUN
ajst-2162	92	10	"	"	PUNCT
ajst-2162	92	11	national	national	ADJ
ajst-2162	92	12	science	science	NOUN
ajst-2162	92	13	and	and	CCONJ
ajst-2162	92	14	technology	technology	NOUN
ajst-2162	92	15	major	major	ADJ
ajst-2162	92	16	special	special	ADJ
ajst-2162	92	17	project	project	NOUN
ajst-2162	92	18	"	"	PUNCT
ajst-2162	92	19	risk	risk	NOUN
ajst-2162	92	20	assessment	assessment	NOUN
ajst-2162	92	21	of	of	ADP
ajst-2162	92	22	deepwater	deepwater	ADJ
ajst-2162	92	23	testing	testing	NOUN
ajst-2162	92	24	and	and	CCONJ
ajst-2162	92	25	research	research	NOUN
ajst-2162	92	26	on	on	ADP
ajst-2162	92	27	well	well	INTJ
ajst-2162	92	28	completion	completion	NOUN
ajst-2162	92	29	and	and	CCONJ
ajst-2162	92	30	wellbore	wellbore	NOUN
ajst-2162	92	31	integrity	integrity	NOUN
ajst-2162	92	32	"	"	PUNCT
ajst-2162	92	33	(	(	PUNCT
ajst-2162	92	34	2016zx05028001	2016zx05028001	NUM
ajst-2162	92	35	-	-	SYM
ajst-2162	92	36	006	006	NUM
ajst-2162	92	37	)	)	PUNCT
ajst-2162	92	38	and	and	CCONJ
ajst-2162	92	39	"	"	PUNCT
ajst-2162	92	40	development	development	NOUN
ajst-2162	92	41	of	of	ADP
ajst-2162	92	42	non	non	ADJ
ajst-2162	92	43	differential	differential	NOUN
ajst-2162	92	44	ball	ball	NOUN
ajst-2162	92	45	slippers	slipper	NOUN
ajst-2162	92	46	"	"	PUNCT
ajst-2162	92	47	of	of	ADP
ajst-2162	92	48	western	western	ADJ
ajst-2162	92	49	drilling	drilling	NOUN
ajst-2162	92	50	references	reference	NOUN
ajst-2162	92	51	[	[	X
ajst-2162	92	52	1	1	NUM
ajst-2162	92	53	]	]	PUNCT
ajst-2162	92	54	jiang	jiang	PROPN
ajst-2162	92	55	y	y	PROPN
ajst-2162	92	56	x.	x.	NOUN
ajst-2162	92	57	fracturing	fracture	VERB
ajst-2162	92	58	technology	technology	NOUN
ajst-2162	92	59	and	and	CCONJ
ajst-2162	92	60	case	case	NOUN
ajst-2162	92	61	analysis	analysis	NOUN
ajst-2162	92	62	of	of	ADP
ajst-2162	92	63	complex	complex	ADJ
ajst-2162	92	64	and	and	CCONJ
ajst-2162	92	65	difficult	difficult	ADJ
ajst-2162	92	66	to	to	PART
ajst-2162	92	67	produce	produce	VERB
ajst-2162	92	68	oil	oil	NOUN
ajst-2162	92	69	and	and	CCONJ
ajst-2162	92	70	gas	gas	NOUN
ajst-2162	92	71	reservoirs[m	reservoirs[m	PROPN
ajst-2162	92	72	]	]	PUNCT
ajst-2162	92	73	.	.	PUNCT
ajst-2162	93	1	beijing	beijing	PROPN
ajst-2162	93	2	:	:	PUNCT
ajst-2162	93	3	sinopec	sinopec	PROPN
ajst-2162	93	4	press	press	PROPN
ajst-2162	93	5	.	.	PUNCT
ajst-2162	94	1	[	[	X
ajst-2162	94	2	2	2	X
ajst-2162	94	3	]	]	PUNCT
ajst-2162	94	4	hao	hao	PROPN
ajst-2162	94	5	s	s	PROPN
ajst-2162	94	6	y	y	PROPN
ajst-2162	94	7	,	,	PUNCT
ajst-2162	94	8	zhang	zhang	PROPN
ajst-2162	94	9	l.	l.	PROPN
ajst-2162	94	10	development	development	PROPN
ajst-2162	94	11	technology	technology	PROPN
ajst-2162	94	12	and	and	CCONJ
ajst-2162	94	13	management	management	NOUN
ajst-2162	94	14	of	of	ADP
ajst-2162	94	15	low	low	ADJ
ajst-2162	94	16	permeability	permeability	NOUN
ajst-2162	94	17	oilfield[m	oilfield[m	NOUN
ajst-2162	94	18	]	]	PUNCT
ajst-2162	94	19	.	.	PUNCT
ajst-2162	95	1	beijing	beijing	PROPN
ajst-2162	95	2	:	:	PUNCT
ajst-2162	95	3	petroleum	petroleum	NOUN
ajst-2162	95	4	industry	industry	NOUN
ajst-2162	95	5	press	press	NOUN
ajst-2162	95	6	,	,	PUNCT
ajst-2162	95	7	2012	2012	NUM
ajst-2162	95	8	.	.	PUNCT
ajst-2162	96	1	[	[	X
ajst-2162	96	2	3	3	X
ajst-2162	96	3	]	]	X
ajst-2162	96	4	yan	yan	PROPN
ajst-2162	96	5	c	c	PROPN
ajst-2162	96	6	z.	z.	PROPN
ajst-2162	96	7	papers	paper	NOUN
ajst-2162	96	8	on	on	ADP
ajst-2162	96	9	low	low	ADJ
ajst-2162	96	10	permeability	permeability	NOUN
ajst-2162	96	11	oilfield	oilfield	NOUN
ajst-2162	96	12	development[m	development[m	NOUN
ajst-2162	96	13	]	]	PUNCT
ajst-2162	96	14	.	.	PUNCT
ajst-2162	97	1	beijing	beijing	PROPN
ajst-2162	97	2	:	:	PUNCT
ajst-2162	97	3	petroleum	petroleum	NOUN
ajst-2162	97	4	industry	industry	NOUN
ajst-2162	97	5	press	press	NOUN
ajst-2162	97	6	,	,	PUNCT
ajst-2162	97	7	2008	2008	NUM
ajst-2162	97	8	.	.	PUNCT
ajst-2162	98	1	[	[	X
ajst-2162	98	2	4	4	X
ajst-2162	98	3	]	]	X
ajst-2162	98	4	li	li	PROPN
ajst-2162	98	5	c	c	PROPN
ajst-2162	98	6	q.	q.	PROPN
ajst-2162	98	7	application	application	NOUN
ajst-2162	98	8	of	of	ADP
ajst-2162	98	9	staged	stage	VERB
ajst-2162	98	10	fracturing	fracturing	NOUN
ajst-2162	98	11	in	in	ADP
ajst-2162	98	12	horizontal	horizontal	ADJ
ajst-2162	98	13	wells	well	NOUN
ajst-2162	98	14	in	in	ADP
ajst-2162	98	15	the	the	DET
ajst-2162	98	16	development	development	NOUN
ajst-2162	98	17	of	of	ADP
ajst-2162	98	18	ultra	ultra	ADJ
ajst-2162	98	19	-	-	ADJ
ajst-2162	98	20	low	low	ADJ
ajst-2162	98	21	permeability	permeability	NOUN
ajst-2162	98	22	reservoirs[j	reservoirs[j	PROPN
ajst-2162	98	23	]	]	PUNCT
ajst-2162	98	24	.	.	PUNCT
ajst-2162	99	1	journal	journal	PROPN
ajst-2162	99	2	of	of	ADP
ajst-2162	99	3	southwest	southwest	PROPN
ajst-2162	99	4	petroleum	petroleum	PROPN
ajst-2162	99	5	university	university	NOUN
ajst-2162	99	6	(	(	PUNCT
ajst-2162	99	7	natural	natural	ADJ
ajst-2162	99	8	science	science	NOUN
ajst-2162	99	9	edition	edition	NOUN
ajst-2162	99	10	)	)	PUNCT
ajst-2162	99	11	,	,	PUNCT
ajst-2162	99	12	2001,33	2001,33	PROPN
ajst-2162	99	13	(	(	PUNCT
ajst-2162	99	14	6	6	NUM
ajst-2162	99	15	):	):	PUNCT
ajst-2162	99	16	85	85	NUM
ajst-2162	99	17	-	-	SYM
ajst-2162	99	18	88	88	NUM
ajst-2162	99	19	.	.	PUNCT
ajst-2162	100	1	[	[	X
ajst-2162	100	2	5	5	X
ajst-2162	100	3	]	]	PUNCT
ajst-2162	100	4	wang	wang	PROPN
ajst-2162	100	5	r.	r.	PROPN
ajst-2162	100	6	analysis	analysis	NOUN
ajst-2162	100	7	of	of	ADP
ajst-2162	100	8	factors	factor	NOUN
ajst-2162	100	9	influencing	influence	VERB
ajst-2162	100	10	volume	volume	NOUN
ajst-2162	100	11	fracturing	fracturing	NOUN
ajst-2162	100	12	effect	effect	NOUN
ajst-2162	100	13	of	of	ADP
ajst-2162	100	14	horizontal	horizontal	ADJ
ajst-2162	100	15	wells	well	NOUN
ajst-2162	100	16	in	in	ADP
ajst-2162	100	17	tight	tight	ADJ
ajst-2162	100	18	reservoirs[j	reservoirs[j	NOUN
ajst-2162	100	19	]	]	PUNCT
ajst-2162	100	20	.	.	PUNCT
ajst-2162	101	1	special	special	ADJ
ajst-2162	101	2	oil	oil	NOUN
ajst-2162	101	3	and	and	CCONJ
ajst-2162	101	4	gas	gas	NOUN
ajst-2162	101	5	reservoirs	reservoir	NOUN
ajst-2162	101	6	,	,	PUNCT
ajst-2162	101	7	2015	2015	NUM
ajst-2162	101	8	,	,	PUNCT
ajst-2162	101	9	22	22	NUM
ajst-2162	101	10	(	(	PUNCT
ajst-2162	101	11	2	2	NUM
ajst-2162	101	12	):	):	PUNCT
ajst-2162	101	13	126	126	NUM
ajst-2162	101	14	-	-	SYM
ajst-2162	101	15	128	128	NUM
ajst-2162	101	16	.	.	PUNCT
ajst-2162	102	1	[	[	X
ajst-2162	102	2	6	6	NUM
ajst-2162	102	3	]	]	PUNCT
ajst-2162	102	4	wang	wang	PROPN
ajst-2162	102	5	h	h	PROPN
ajst-2162	102	6	,	,	PUNCT
ajst-2162	102	7	liao	liao	PROPN
ajst-2162	102	8	x	x	PROPN
ajst-2162	102	9	w	w	PROPN
ajst-2162	102	10	,	,	PUNCT
ajst-2162	102	11	zhao	zhao	NOUN
ajst-2162	102	12	x	x	SYM
ajst-2162	102	13	l	l	NOUN
ajst-2162	102	14	,	,	PUNCT
ajst-2162	102	15	et	et	PROPN
ajst-2162	102	16	al	al	PROPN
ajst-2162	102	17	.	.	PUNCT
ajst-2162	102	18	research	research	NOUN
ajst-2162	102	19	progress	progress	NOUN
ajst-2162	102	20	of	of	ADP
ajst-2162	102	21	reservoir	reservoir	NOUN
ajst-2162	102	22	volume	volume	NOUN
ajst-2162	102	23	reconstruction	reconstruction	NOUN
ajst-2162	102	24	simulation	simulation	NOUN
ajst-2162	102	25	technology	technology	NOUN
ajst-2162	102	26	for	for	ADP
ajst-2162	102	27	unconventional	unconventional	ADJ
ajst-2162	102	28	oil	oil	NOUN
ajst-2162	102	29	and	and	CCONJ
ajst-2162	102	30	gas	gas	NOUN
ajst-2162	102	31	reservoirs[j	reservoirs[j	PROPN
ajst-2162	102	32	]	]	PUNCT
ajst-2162	102	33	.	.	PUNCT
ajst-2162	103	1	special	special	ADJ
ajst-2162	103	2	oil	oil	NOUN
ajst-2162	103	3	and	and	CCONJ
ajst-2162	103	4	gas	gas	NOUN
ajst-2162	103	5	reservoirs	reservoir	NOUN
ajst-2162	103	6	,	,	PUNCT
ajst-2162	103	7	2014	2014	NUM
ajst-2162	103	8	,	,	PUNCT
ajst-2162	103	9	21	21	NUM
ajst-2162	103	10	(	(	PUNCT
ajst-2162	103	11	2	2	NUM
ajst-2162	103	12	):	):	PUNCT
ajst-2162	103	13	8	8	NUM
ajst-2162	103	14	-	-	SYM
ajst-2162	103	15	15	15	NUM
ajst-2162	103	16	.	.	PUNCT
ajst-2162	104	1	[	[	X
ajst-2162	104	2	7	7	X
ajst-2162	104	3	]	]	X
ajst-2162	104	4	pu	pu	PROPN
ajst-2162	104	5	j	j	PROPN
ajst-2162	104	6	w	w	PROPN
ajst-2162	104	7	,	,	PUNCT
ajst-2162	104	8	luo	luo	PROPN
ajst-2162	104	9	m	m	PROPN
ajst-2162	104	10	l	l	NOUN
ajst-2162	104	11	,	,	PUNCT
ajst-2162	104	12	wen	wen	PROPN
ajst-2162	104	13	q	q	PROPN
ajst-2162	104	14	z	z	PROPN
ajst-2162	104	15	,	,	PUNCT
ajst-2162	104	16	et	et	PROPN
ajst-2162	104	17	al	al	PROPN
ajst-2162	104	18	.	.	PROPN
ajst-2162	104	19	finite	finite	PROPN
ajst-2162	104	20	discrete	discrete	ADJ
ajst-2162	104	21	element	element	NOUN
ajst-2162	104	22	analysis	analysis	NOUN
ajst-2162	104	23	on	on	ADP
ajst-2162	104	24	fracturing	fracturing	NOUN
ajst-2162	104	25	of	of	ADP
ajst-2162	104	26	tight	tight	ADJ
ajst-2162	104	27	sandstone	sandstone	NOUN
ajst-2162	104	28	reservoir[j	reservoir[j	NOUN
ajst-2162	104	29	]	]	PUNCT
ajst-2162	104	30	.	.	PUNCT
ajst-2162	105	1	special	special	ADJ
ajst-2162	105	2	oil	oil	NOUN
ajst-2162	105	3	and	and	CCONJ
ajst-2162	105	4	gas	gas	NOUN
ajst-2162	105	5	reservoirs	reservoir	NOUN
ajst-2162	105	6	,	,	PUNCT
ajst-2162	105	7	2018	2018	NUM
ajst-2162	105	8	.	.	PUNCT
ajst-2162	106	1	[	[	X
ajst-2162	106	2	8	8	NUM
ajst-2162	106	3	]	]	SYM
ajst-2162	106	4	xi	xi	ADP
ajst-2162	106	5	y	y	PROPN
ajst-2162	106	6	,	,	PUNCT
ajst-2162	106	7	li	li	PROPN
ajst-2162	106	8	j	j	PROPN
ajst-2162	106	9	,	,	PUNCT
ajst-2162	106	10	liu	liu	PROPN
ajst-2162	106	11	g	g	PROPN
ajst-2162	106	12	h	h	PROPN
ajst-2162	106	13	,	,	PUNCT
ajst-2162	106	14	et	et	PROPN
ajst-2162	107	1	al	al	PROPN
ajst-2162	107	2	.	.	PROPN
ajst-2162	107	3	overview	overview	NOUN
ajst-2162	107	4	of	of	ADP
ajst-2162	107	5	casing	case	VERB
ajst-2162	107	6	deformation	deformation	NOUN
ajst-2162	107	7	in	in	ADP
ajst-2162	107	8	multistage	multistage	NOUN
ajst-2162	107	9	fracturing	fracturing	NOUN
ajst-2162	107	10	of	of	ADP
ajst-2162	107	11	shale	shale	NOUN
ajst-2162	107	12	gas	gas	NOUN
ajst-2162	107	13	horizontal	horizontal	ADJ
ajst-2162	107	14	wells[j	wells[j	PROPN
ajst-2162	107	15	]	]	PUNCT
ajst-2162	107	16	.	.	PUNCT
ajst-2162	108	1	special	special	ADJ
ajst-2162	108	2	oil	oil	NOUN
ajst-2162	108	3	and	and	CCONJ
ajst-2162	108	4	gas	gas	NOUN
ajst-2162	108	5	reservoirs	reservoir	NOUN
ajst-2162	108	6	,	,	PUNCT
ajst-2162	108	7	2018	2018	NUM
ajst-2162	108	8	.	.	PUNCT
ajst-2162	109	1	[	[	X
ajst-2162	109	2	9	9	NUM
ajst-2162	109	3	]	]	X
ajst-2162	109	4	tong	tong	PROPN
ajst-2162	109	5	s	s	PROPN
ajst-2162	109	6	k	k	PROPN
ajst-2162	109	7	,	,	PUNCT
ajst-2162	109	8	gao	gao	PROPN
ajst-2162	109	9	d	d	PROPN
ajst-2162	109	10	l.	l.	PROPN
ajst-2162	109	11	basic	basic	ADJ
ajst-2162	109	12	research	research	NOUN
ajst-2162	109	13	progress	progress	NOUN
ajst-2162	109	14	and	and	CCONJ
ajst-2162	109	15	development	development	NOUN
ajst-2162	109	16	suggestions	suggestion	NOUN
ajst-2162	109	17	on	on	ADP
ajst-2162	109	18	hydraulic	hydraulic	ADJ
ajst-2162	109	19	fracturing[j	fracturing[j	PROPN
ajst-2162	109	20	]	]	PUNCT
ajst-2162	109	21	.	.	PUNCT
ajst-2162	110	1	petroleum	petroleum	NOUN
ajst-2162	110	2	drilling	drilling	NOUN
ajst-2162	110	3	and	and	CCONJ
ajst-2162	110	4	production	production	NOUN
ajst-2162	110	5	process	process	NOUN
ajst-2162	110	6	,	,	PUNCT
ajst-2162	110	7	2018	2018	NUM
ajst-2162	110	8	.	.	PUNCT
ajst-2162	111	1	[	[	X
ajst-2162	111	2	10	10	NUM
ajst-2162	111	3	]	]	X
ajst-2162	111	4	bi	bi	PROPN
ajst-2162	111	5	m	m	PROPN
ajst-2162	111	6	,	,	PUNCT
ajst-2162	111	7	hu	hu	PROPN
ajst-2162	111	8	y	y	PROPN
ajst-2162	111	9	m	m	PROPN
ajst-2162	111	10	,	,	PUNCT
ajst-2162	111	11	zhu	zhu	PROPN
ajst-2162	111	12	l	l	PROPN
ajst-2162	111	13	a	a	X
ajst-2162	111	14	,	,	PUNCT
ajst-2162	111	15	et	et	PROPN
ajst-2162	111	16	al	al	PROPN
ajst-2162	111	17	.	.	PROPN
ajst-2162	111	18	research	research	NOUN
ajst-2162	111	19	and	and	CCONJ
ajst-2162	111	20	application	application	NOUN
ajst-2162	111	21	of	of	ADP
ajst-2162	111	22	geological	geological	ADJ
ajst-2162	111	23	model	model	NOUN
ajst-2162	111	24	of	of	ADP
ajst-2162	111	25	staged	stage	VERB
ajst-2162	111	26	fracturing	fracturing	NOUN
ajst-2162	111	27	for	for	ADP
ajst-2162	111	28	horizontal	horizontal	ADJ
ajst-2162	111	29	wells	well	NOUN
ajst-2162	111	30	in	in	ADP
ajst-2162	111	31	tight	tight	ADJ
ajst-2162	111	32	gas	gas	NOUN
ajst-2162	111	33	reservoirs	reservoir	NOUN
ajst-2162	111	34	and	and	CCONJ
ajst-2162	111	35	optimization	optimization	NOUN
ajst-2162	111	36	of	of	ADP
ajst-2162	111	37	cost	cost	NOUN
ajst-2162	111	38	reduction	reduction	NOUN
ajst-2162	111	39	and	and	CCONJ
ajst-2162	111	40	benefit	benefit	NOUN
ajst-2162	111	41	increase[j	increase[j	NOUN
ajst-2162	111	42	]	]	PUNCT
ajst-2162	111	43	.	.	PUNCT
ajst-2162	112	1	drilling	drilling	NOUN
ajst-2162	112	2	and	and	CCONJ
ajst-2162	112	3	production	production	NOUN
ajst-2162	112	4	process	process	NOUN
ajst-2162	112	5	,	,	PUNCT
ajst-2162	112	6	2018,41	2018,41	PROPN
ajst-2162	112	7	(	(	PUNCT
ajst-2162	112	8	5	5	NUM
ajst-2162	112	9	):	):	PUNCT
ajst-2162	112	10	59	59	NUM
ajst-2162	112	11	-	-	SYM
ajst-2162	112	12	62	62	NUM
ajst-2162	112	13	.	.	PUNCT
ajst-2162	113	1	[	[	X
ajst-2162	113	2	11	11	NUM
ajst-2162	113	3	]	]	X
ajst-2162	113	4	ling	ling	PROPN
ajst-2162	113	5	y	y	PROPN
ajst-2162	113	6	,	,	PUNCT
ajst-2162	113	7	li	li	PROPN
ajst-2162	113	8	x	x	X
ajst-2162	113	9	w.	w.	PROPN
ajst-2162	113	10	new	new	ADJ
ajst-2162	113	11	progress	progress	NOUN
ajst-2162	113	12	in	in	ADP
ajst-2162	113	13	fracturing	fracturing	NOUN
ajst-2162	113	14	technologies	technology	NOUN
ajst-2162	113	15	for	for	ADP
ajst-2162	113	16	tight	tight	ADJ
ajst-2162	113	17	sandstone	sandstone	NOUN
ajst-2162	113	18	gas	gas	NOUN
ajst-2162	113	19	reservoirs	reservoir	NOUN
ajst-2162	113	20	in	in	ADP
ajst-2162	113	21	the	the	DET
ajst-2162	113	22	sulige	sulige	NOUN
ajst-2162	113	23	gas	gas	NOUN
ajst-2162	113	24	field	field	NOUN
ajst-2162	113	25	,	,	PUNCT
ajst-2162	113	26	ordos	ordo	VERB
ajst-2162	113	27	basin[j	basin[j	PROPN
ajst-2162	113	28	]	]	PUNCT
ajst-2162	113	29	.	.	PUNCT
ajst-2162	113	30	natural	natural	ADJ
ajst-2162	113	31	gas	gas	NOUN
ajst-2162	113	32	industry	industry	NOUN
ajst-2162	113	33	,	,	PUNCT
ajst-2162	113	34	2014	2014	NUM
ajst-2162	113	35	,	,	PUNCT
ajst-2162	113	36	34	34	NUM
ajst-2162	113	37	(	(	PUNCT
ajst-2162	113	38	11	11	NUM
ajst-2162	113	39	):	):	PUNCT
ajst-2162	113	40	66	66	NUM
ajst-2162	113	41	-	-	SYM
ajst-2162	113	42	72	72	NUM
ajst-2162	113	43	.	.	PUNCT
ajst-2162	114	1	[	[	X
ajst-2162	114	2	12	12	NUM
ajst-2162	114	3	]	]	X
ajst-2162	114	4	li	li	PROPN
ajst-2162	114	5	x	x	SYM
ajst-2162	114	6	w	w	PROPN
ajst-2162	114	7	,	,	PUNCT
ajst-2162	114	8	ling	ling	PROPN
ajst-2162	114	9	y	y	PROPN
ajst-2162	114	10	,	,	PUNCT
ajst-2162	114	11	ma	ma	PROPN
ajst-2162	114	12	x	x	PROPN
ajst-2162	114	13	,	,	PUNCT
ajst-2162	114	14	et	et	PROPN
ajst-2162	114	15	al	al	PROPN
ajst-2162	114	16	.	.	PUNCT
ajst-2162	115	1	new	new	ADJ
ajst-2162	115	2	development	development	NOUN
ajst-2162	115	3	of	of	ADP
ajst-2162	115	4	fracturing	fracture	VERB
ajst-2162	115	5	technology	technology	NOUN
ajst-2162	115	6	for	for	ADP
ajst-2162	115	7	low	low	ADJ
ajst-2162	115	8	permeability	permeability	NOUN
ajst-2162	115	9	sandstone	sandstone	NOUN
ajst-2162	115	10	gas	gas	NOUN
ajst-2162	115	11	reservoirs	reservoir	NOUN
ajst-2162	115	12	in	in	ADP
ajst-2162	115	13	changqing	changqe	VERB
ajst-2162	115	14	gas	gas	NOUN
ajst-2162	115	15	area	area	NOUN
ajst-2162	115	16	-taking	-take	VERB
ajst-2162	115	17	sulige	sulige	NOUN
ajst-2162	115	18	gas	gas	NOUN
ajst-2162	115	19	field	field	NOUN
ajst-2162	115	20	as	as	ADP
ajst-2162	115	21	an	an	DET
ajst-2162	115	22	example[j	example[j	NOUN
ajst-2162	115	23	]	]	PUNCT
ajst-2162	115	24	.	.	PUNCT
ajst-2162	115	25	natural	natural	ADJ
ajst-2162	115	26	gas	gas	NOUN
ajst-2162	115	27	industry	industry	NOUN
ajst-2162	115	28	,	,	PUNCT
ajst-2162	115	29	2011	2011	NUM
ajst-2162	115	30	,	,	PUNCT
ajst-2162	115	31	31	31	NUM
ajst-2162	115	32	(	(	PUNCT
ajst-2162	115	33	2	2	NUM
ajst-2162	115	34	):	):	PUNCT
ajst-2162	115	35	20	20	NUM
ajst-2162	115	36	-	-	SYM
ajst-2162	115	37	24	24	NUM
ajst-2162	115	38	.	.	PUNCT
ajst-2162	116	1	[	[	X
ajst-2162	116	2	13	13	NUM
ajst-2162	116	3	]	]	X
ajst-2162	116	4	cheng	cheng	PROPN
ajst-2162	116	5	p.drilling	p.drilling	NOUN
ajst-2162	116	6	and	and	CCONJ
ajst-2162	116	7	completion	completion	NOUN
ajst-2162	116	8	engineering[d	engineering[d	NOUN
ajst-2162	116	9	]	]	PUNCT
ajst-2162	116	10	.	.	PUNCT
ajst-2162	117	1	beijing	beijing	PROPN
ajst-2162	117	2	:	:	PUNCT
ajst-2162	117	3	petroleum	petroleum	NOUN
ajst-2162	117	4	industry	industry	NOUN
ajst-2162	117	5	press	press	NOUN
ajst-2162	117	6	,	,	PUNCT
ajst-2162	117	7	2005	2005	NUM
ajst-2162	117	8	.	.	PUNCT
ajst-2162	118	1	[	[	X
ajst-2162	118	2	14	14	NUM
ajst-2162	118	3	]	]	X
ajst-2162	118	4	mu	mu	PROPN
ajst-2162	118	5	l	l	PROPN
ajst-2162	118	6	j，ma	j，ma	NOUN
ajst-2162	118	7	x，zhang	x，zhang	PROPN
ajst-2162	118	8	y	y	PROPN
ajst-2162	118	9	m，et	m，et	PROPN
ajst-2162	118	10	al	al	PROPN
ajst-2162	118	11	.	.	PROPN
ajst-2162	118	12	evaluation	evaluation	NOUN
ajst-2162	118	13	of	of	ADP
ajst-2162	118	14	multistage	multistage	NOUN
ajst-2162	118	15	fracturing	fracturing	NOUN
ajst-2162	118	16	by	by	ADP
ajst-2162	118	17	hydrajet，swellable	hydrajet，swellable	ADJ
ajst-2162	118	18	packer，and	packer，and	NOUN
ajst-2162	118	19	compressive	compressive	ADJ
ajst-2162	118	20	packer	packer	NOUN
ajst-2162	118	21	techniques	technique	NOUN
ajst-2162	118	22	in	in	ADP
ajst-2162	118	23	horizontal	horizontal	ADJ
ajst-2162	118	24	openhole	openhole	NOUN
ajst-2162	118	25	wells[r	wells[r	NUM
ajst-2162	118	26	]	]	PUNCT
ajst-2162	118	27	.	.	PUNCT
ajst-2162	119	1	spe	spe	PROPN
ajst-2162	119	2	153328，2012．	153328，2012．	NUM
ajst-2162	120	1	[	[	X
ajst-2162	120	2	15	15	NUM
ajst-2162	120	3	]	]	X
ajst-2162	120	4	li	li	PROPN
ajst-2162	120	5	b	b	PROPN
ajst-2162	120	6	,	,	PUNCT
ajst-2162	120	7	zheng	zheng	PROPN
ajst-2162	120	8	x	x	PROPN
ajst-2162	120	9	,	,	PUNCT
ajst-2162	120	10	zhang	zhang	PROPN
ajst-2162	120	11	z	z	PROPN
ajst-2162	120	12	p	p	PROPN
ajst-2162	120	13	,	,	PUNCT
ajst-2162	120	14	et	et	PROPN
ajst-2162	120	15	al	al	PROPN
ajst-2162	120	16	.	.	PROPN
ajst-2162	120	17	study	study	NOUN
ajst-2162	120	18	on	on	ADP
ajst-2162	120	19	sealing	sealing	NOUN
ajst-2162	120	20	of	of	ADP
ajst-2162	120	21	ball	ball	NOUN
ajst-2162	120	22	sliding	slide	VERB
ajst-2162	120	23	sleeve	sleeve	NOUN
ajst-2162	120	24	in	in	ADP
ajst-2162	120	25	open	open	ADJ
ajst-2162	120	26	hole	hole	NOUN
ajst-2162	120	27	staged	stage	VERB
ajst-2162	120	28	fracturing[j	fracturing[j	NOUN
ajst-2162	120	29	]	]	PUNCT
ajst-2162	120	30	.	.	PUNCT
ajst-2162	121	1	journal	journal	PROPN
ajst-2162	121	2	of	of	ADP
ajst-2162	121	3	applied	apply	VERB
ajst-2162	121	4	mechanics	mechanic	NOUN
ajst-2162	121	5	,	,	PUNCT
ajst-2162	121	6	2017,34	2017,34	NUM
ajst-2162	121	7	(	(	PUNCT
ajst-2162	121	8	6	6	NUM
ajst-2162	121	9	):	):	PUNCT
ajst-2162	121	10	1134	1134	NUM
ajst-2162	121	11	-	-	SYM
ajst-2162	121	12	1139	1139	NUM
ajst-2162	121	13	.	.	PUNCT
ajst-2162	122	1	[	[	X
ajst-2162	122	2	16	16	NUM
ajst-2162	122	3	]	]	PUNCT
ajst-2162	122	4	xun	xun	PROPN
ajst-2162	122	5	h	h	PROPN
ajst-2162	123	1	x	x	PROPN
ajst-2162	123	2	,	,	PUNCT
ajst-2162	123	3	shi	shi	PROPN
ajst-2162	123	4	x	x	PROPN
ajst-2162	123	5	,	,	PUNCT
ajst-2162	123	6	ji	ji	PROPN
ajst-2162	123	7	m	m	PROPN
ajst-2162	123	8	s.	s.	PROPN
ajst-2162	123	9	effect	effect	NOUN
ajst-2162	123	10	of	of	ADP
ajst-2162	123	11	packers	packer	NOUN
ajst-2162	123	12	on	on	ADP
ajst-2162	123	13	the	the	DET
ajst-2162	123	14	initiation	initiation	NOUN
ajst-2162	123	15	pressure	pressure	NOUN
ajst-2162	123	16	of	of	ADP
ajst-2162	123	17	open	open	ADJ
ajst-2162	123	18	hole	hole	NOUN
ajst-2162	123	19	staged	stage	VERB
ajst-2162	123	20	fracturing	fracture	VERB
ajst-2162	123	21	in	in	ADP
ajst-2162	123	22	shale	shale	NOUN
ajst-2162	123	23	gas	gas	NOUN
ajst-2162	123	24	horizontal	horizontal	ADJ
ajst-2162	123	25	wells	well	NOUN
ajst-2162	123	26	.	.	PUNCT
ajst-2162	124	1	proceedings	proceeding	NOUN
ajst-2162	124	2	of	of	ADP
ajst-2162	124	3	2017	2017	NUM
ajst-2162	124	4	national	national	ADJ
ajst-2162	124	5	natural	natural	ADJ
ajst-2162	124	6	gas	gas	NOUN
ajst-2162	124	7	academic	academic	ADJ
ajst-2162	124	8	annual	annual	ADJ
ajst-2162	124	9	conference[c	conference[c	NOUN
ajst-2162	124	10	]	]	PUNCT
ajst-2162	124	11	.	.	NOUN
ajst-2162	124	12	2017	2017	NUM
ajst-2162	124	13	.	.	PUNCT
ajst-2162	125	1	[	[	X
ajst-2162	125	2	17	17	NUM
ajst-2162	125	3	]	]	X
ajst-2162	125	4	liu	liu	PROPN
ajst-2162	125	5	f	f	PROPN
ajst-2162	125	6	c.design	c.design	ADJ
ajst-2162	125	7	method	method	NOUN
ajst-2162	125	8	of	of	ADP
ajst-2162	125	9	horizontal	horizontal	ADJ
ajst-2162	125	10	well	well	INTJ
ajst-2162	125	11	fracturing[d	fracturing[d	ADJ
ajst-2162	125	12	]	]	PUNCT
ajst-2162	125	13	.	.	PUNCT
ajst-2162	126	1	xian	xian	NOUN
ajst-2162	126	2	:	:	PUNCT
ajst-2162	127	1	xian	xian	PROPN
ajst-2162	127	2	university	university	PROPN
ajst-2162	127	3	of	of	ADP
ajst-2162	127	4	petroleum	petroleum	NOUN
ajst-2162	127	5	,	,	PUNCT
ajst-2162	127	6	2011	2011	NUM
ajst-2162	127	7	.	.	PUNCT
ajst-2162	128	1	166	166	NUM
ajst-2162	128	2	[	[	SYM
ajst-2162	128	3	18	18	NUM
ajst-2162	128	4	]	]	X
ajst-2162	128	5	qin	qin	PROPN
ajst-2162	128	6	j	j	PROPN
ajst-2162	128	7	l	l	PROPN
ajst-2162	128	8	,	,	PUNCT
ajst-2162	128	9	wu	wu	PROPN
ajst-2162	128	10	j	j	PROPN
ajst-2162	128	11	h	h	PROPN
ajst-2162	128	12	,	,	PUNCT
ajst-2162	128	13	cui	cui	NOUN
ajst-2162	128	14	x	x	SYM
ajst-2162	128	15	j	j	PROPN
ajst-2162	128	16	,	,	PUNCT
ajst-2162	128	17	et	et	PROPN
ajst-2162	128	18	al	al	PROPN
ajst-2162	128	19	.	.	PROPN
ajst-2162	128	20	key	key	ADJ
ajst-2162	128	21	technology	technology	NOUN
ajst-2162	128	22	on	on	ADP
ajst-2162	128	23	ballactivated	ballactivated	ADJ
ajst-2162	128	24	sleeve	sleeve	NOUN
ajst-2162	128	25	for	for	ADP
ajst-2162	128	26	open	open	ADJ
ajst-2162	128	27	hole	hole	NOUN
ajst-2162	128	28	staged	stage	VERB
ajst-2162	128	29	fracturing[j	fracturing[j	NOUN
ajst-2162	128	30	]	]	PUNCT
ajst-2162	128	31	.	.	PUNCT
ajst-2162	129	1	petroleum	petroleum	NOUN
ajst-2162	129	2	drilling	drilling	NOUN
ajst-2162	129	3	technology	technology	NOUN
ajst-2162	129	4	,	,	PUNCT
ajst-2162	129	5	2014	2014	NUM
ajst-2162	129	6	,	,	PUNCT
ajst-2162	129	7	42	42	NUM
ajst-2162	129	8	(	(	PUNCT
ajst-2162	129	9	5	5	NUM
ajst-2162	129	10	):	):	PUNCT
ajst-2162	129	11	52	52	NUM
ajst-2162	129	12	-	-	SYM
ajst-2162	129	13	56	56	NUM
ajst-2162	129	14	.	.	PUNCT
ajst-2162	130	1	[	[	X
ajst-2162	130	2	19	19	NUM
ajst-2162	130	3	]	]	X
ajst-2162	130	4	feng	feng	PROPN
ajst-2162	130	5	c	c	PROPN
ajst-2162	130	6	q	q	PROPN
ajst-2162	130	7	,	,	PUNCT
ajst-2162	130	8	zhang	zhang	PROPN
ajst-2162	130	9	h	h	PROPN
ajst-2162	130	10	g	g	PROPN
ajst-2162	130	11	,	,	PUNCT
ajst-2162	130	12	zhao	zhao	PROPN
ajst-2162	130	13	f	f	PROPN
ajst-2162	130	14	x	x	PROPN
ajst-2162	130	15	,	,	PUNCT
ajst-2162	130	16	et	et	PROPN
ajst-2162	130	17	al	al	PROPN
ajst-2162	130	18	.	.	PUNCT
ajst-2162	131	1	force	force	PROPN
ajst-2162	131	2	analysis	analysis	NOUN
ajst-2162	131	3	of	of	ADP
ajst-2162	131	4	layered	layered	ADJ
ajst-2162	131	5	fracture	fracture	NOUN
ajst-2162	131	6	sliding	slide	VERB
ajst-2162	131	7	sleeve	sleeve	NOUN
ajst-2162	131	8	and	and	CCONJ
ajst-2162	131	9	seal	seal	VERB
ajst-2162	131	10	ball[j	ball[j	PROPN
ajst-2162	131	11	]	]	PUNCT
ajst-2162	131	12	.	.	PUNCT
ajst-2162	132	1	petroleum	petroleum	NOUN
ajst-2162	132	2	machinery	machinery	NOUN
ajst-2162	132	3	,	,	PUNCT
ajst-2162	132	4	2013	2013	NUM
ajst-2162	132	5	,	,	PUNCT
ajst-2162	132	6	41	41	NUM
ajst-2162	132	7	(	(	PUNCT
ajst-2162	132	8	2	2	NUM
ajst-2162	132	9	):	):	PUNCT
ajst-2162	132	10	75	75	NUM
ajst-2162	132	11	-	-	SYM
ajst-2162	132	12	78	78	NUM
ajst-2162	132	13	.	.	PUNCT
ajst-2162	133	1	[	[	X
ajst-2162	133	2	20	20	NUM
ajst-2162	133	3	]	]	X
ajst-2162	133	4	li	li	PROPN
ajst-2162	133	5	q	q	PROPN
ajst-2162	133	6	,	,	PUNCT
ajst-2162	133	7	dong	dong	PROPN
ajst-2162	133	8	s	s	PART
ajst-2162	133	9	x	x	NOUN
ajst-2162	133	10	,	,	PUNCT
ajst-2162	133	11	lu	lu	PROPN
ajst-2162	133	12	z	z	NOUN
ajst-2162	133	13	x	x	PROPN
ajst-2162	133	14	,	,	PUNCT
ajst-2162	133	15	et	et	PROPN
ajst-2162	133	16	al	al	PROPN
ajst-2162	133	17	.	.	PROPN
ajst-2162	133	18	research	research	NOUN
ajst-2162	133	19	on	on	ADP
ajst-2162	133	20	erosion	erosion	NOUN
ajst-2162	133	21	wear	wear	VERB
ajst-2162	133	22	ang	ang	NOUN
ajst-2162	133	23	evaluation	evaluation	NOUN
ajst-2162	133	24	methods	method	NOUN
ajst-2162	133	25	of	of	ADP
ajst-2162	133	26	sliding	slide	VERB
ajst-2162	133	27	sleeve	sleeve	NOUN
ajst-2162	133	28	tee[j	tee[j	NOUN
ajst-2162	133	29	]	]	PUNCT
ajst-2162	133	30	.	.	PUNCT
ajst-2162	134	1	lubrication	lubrication	NOUN
ajst-2162	134	2	and	and	CCONJ
ajst-2162	134	3	sealing	sealing	NOUN
ajst-2162	134	4	,	,	PUNCT
ajst-2162	134	5	2016,41	2016,41	PROPN
ajst-2162	134	6	(	(	PUNCT
ajst-2162	134	7	7	7	NUM
ajst-2162	134	8	):	):	PUNCT
ajst-2162	134	9	116	116	NUM
ajst-2162	134	10	-	-	SYM
ajst-2162	134	11	119	119	NUM
ajst-2162	134	12	.	.	PUNCT
ajst-2162	135	1	[	[	X
ajst-2162	135	2	21	21	NUM
ajst-2162	135	3	]	]	X
ajst-2162	135	4	fluent	fluent	ADJ
ajst-2162	135	5	i.	i.	PROPN
ajst-2162	135	6	fluent	fluent	PROPN
ajst-2162	135	7	user	user	PROPN
ajst-2162	135	8	’s	’s	PART
ajst-2162	135	9	guide[m].fluent	guide[m].fluent	PROPN
ajst-2162	135	10	inc,2006	inc,2006	NOUN
ajst-2162	135	11	.	.	PUNCT
ajst-2162	136	1	[	[	X
ajst-2162	136	2	22	22	NUM
ajst-2162	136	3	]	]	PUNCT
ajst-2162	136	4	forder	forder	NOUN
ajst-2162	136	5	a	a	NOUN
ajst-2162	136	6	,	,	PUNCT
ajst-2162	136	7	thew	thew	PROPN
ajst-2162	136	8	m	m	PROPN
ajst-2162	136	9	,	,	PUNCT
ajst-2162	136	10	harrison	harrison	PROPN
ajst-2162	136	11	d.	d.	PROPN
ajst-2162	136	12	a	a	DET
ajst-2162	136	13	numerical	numerical	ADJ
ajst-2162	136	14	investigation	investigation	NOUN
ajst-2162	136	15	of	of	ADP
ajst-2162	136	16	solid	solid	ADJ
ajst-2162	136	17	particle	particle	NOUN
ajst-2162	136	18	erosion	erosion	NOUN
ajst-2162	136	19	experienced	experience	VERB
ajst-2162	136	20	within	within	ADP
ajst-2162	136	21	oilfield	oilfield	NOUN
ajst-2162	136	22	control	control	NOUN
ajst-2162	136	23	valves[j	valves[j	PROPN
ajst-2162	136	24	]	]	PUNCT
ajst-2162	136	25	.	.	PUNCT
ajst-2162	137	1	wear,1998,216(2):184	wear,1998,216(2):184	VERB
ajst-2162	137	2	-	-	NOUN
ajst-2162	137	3	193	193	NUM
ajst-2162	137	4	.	.	PUNCT
ajst-2162	138	1	[	[	X
ajst-2162	138	2	23	23	NUM
ajst-2162	138	3	]	]	X
ajst-2162	138	4	wang	wang	PROPN
ajst-2162	138	5	l	l	PROPN
ajst-2162	138	6	,	,	PUNCT
ajst-2162	138	7	cheng	cheng	PROPN
ajst-2162	138	8	g	g	PROPN
ajst-2162	138	9	z.	z.	PROPN
ajst-2162	138	10	engineering	engineering	NOUN
ajst-2162	138	11	fluid	fluid	NOUN
ajst-2162	138	12	mechanics[m	mechanics[m	NOUN
ajst-2162	138	13	]	]	PUNCT
ajst-2162	138	14	.	.	PUNCT
ajst-2162	139	1	beijing	beijing	PROPN
ajst-2162	139	2	:	:	PUNCT
ajst-2162	139	3	petroleum	petroleum	NOUN
ajst-2162	139	4	industry	industry	NOUN
ajst-2162	139	5	press	press	NOUN
ajst-2162	139	6	,	,	PUNCT
ajst-2162	139	7	2007	2007	NUM
ajst-2162	139	8	.	.	PUNCT