id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ajst-25654	Zhou, Xing	Study on the Contribution of Different Pore Throat Sizes to Oil Displacement Efficiency in Fracture-Pore Tight Sandstone Reservoir	2024	5	.pdf	application/pdf	3316	128	45	Distribution of pore throat at different scales and oil displacement efficiency Serial number Type T2/ms Displacement efficiency/% Water Supercritical CO2 Immiscible CO2 Miscible CO2 1 Micropore [0.001-0.1) -9.52 9.69 8.95 7.89 2 Ostiole [0.1-1.0) -6.43 9.57 8.91 7.93 3 Mesopore [1.0-10) 44.27 10.46 11.35 8.10 4 Macropore [10-100) 46.99 23.43 8.02 5.24 5 Crack [100-10000] 17.02 34.67 9.00 4.87 6 Entirety [0.001-10000] 25.68 16.36 9.35 7.11 Comparing the immismisable CO2 displacement stage curve (green) with the mismisable CO2 displacement stage curve (purple) (Fig. 2), the mismisable CO2 displacement stage mainly uses crude oil in micropores, small pores and middle pores, and the utilization degree reaches 23.92%, while the utilization degree of crude oil in macropores and fractures is low, only 10.11%. The results show that the contribution of mesopores, macropores and fractures to oil displacement efficiency in the supercritical CO2 displacement stage reaches 74.58%.	cache/ajst-25654.pdf	txt/ajst-25654.txt