id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
iogr-444	Jiang, Yun; Shi, Yang; Zhao, Liang; Yang, Xianyou; Li, Yue; Yu, Yue; Gao, Ying; Wang, Meng	Water Block Damage and Its Solutions for Tight Gas Reservoirs in Dabei-Keshen Area : DOI: 10.14800/IOGR.444	2019	9	.pdf	application/pdf	3781	219	51	Conclusions 1) Water block index, WBI, is applied to evaluate the damage degree of water block, and WBI of selective core samples from the targeted zone is 70%, belonging to the type of strong water block. 2) To investigate the mechanism of water block and put forward corresponding measures, water block index (WBI) is developed to estimate the damage degree of water block and thermo-stable surfactant systems are optimized to clean up water block through interfacial tension tests, wettability tests and spontaneous imbibition.	cache/iogr-444.pdf	txt/iogr-444.txt