Study of Single Phase Mass Transfer between Matrix and Fracture in Tight Oil Reservoirs

Table 2

Data of throat distributions of Yanchang Formation.

Throat radius (μm)	No. 1 (%)	No. 2 (%)	No. 3 (%)	No. 4 (%)	No. 5 (%)	No. 6 (%)	No. 7 (%)	No. 8 (%)
0-0.01	38.41	27.42	5.52	52.03	46.86	38.69	66.50	7.31
0.01-0.02	9.12	20.21	12.61	9.70	8.34	15.58	9.04	16.23
0.02-0.05	15.84	17.42	29.65	17.41	11.35	21.59	8.78	17.56
0.05-0.10	12.62	10.43	19.56	10.94	11.21	13.09	5.98	10.25
0.10-0.20	12.17	9.31	15.5	2.95	11.05	4.07	3.09	12.34
0.20-0.30	6.73	8.12	9.51	1.66	5.54	2.11	1.77	11.21
0.30-0.40	2.78	3.84	4.76	0.91	1.64	0.91	0.86	8.65
0.40-0.50	1.11	2.22	1.52	0.57	0.36	0.48	0.42	8.64
0.50-0.60	0.51	1.01	0.78	0.32	0.21	0.25	0.28	4.76
0.60-1.00	0.31	0.37	0.65	0.26	0.14	0.13	0.22	3.05