Binary pore structure characteristics of tight sandstone reservoirs

ZHU Haihua,ZHANG Tingshan,ZHONG Dakang,LI Yaoyu,ZHANG Jingxuan,CHEN Xiaohui

Table 3 Fractal dimensions and ?1, ?2 and ?3 of the 14 samples.

No. D1 R1 D2 R2 Turning radius/μm ?1/% ?2/% ?3/% 1 5.27 0.97 2.42 0.970 0.09 1.35 1.90 1.75 2 5.46 0.95 2.41 0.980 0.09 1.46 3.01 2.94 3 5.65 0.99 2.36 0.953 0.09 1.85 2.18 4.27 4 5.11 0.98 2.66 0.940 0.07 1.60 3.58 3.23 5 7.47 0.99 2.42 0.860 0.07 1.61 2.84 4.35 6 5.27 0.98 2.34 0.950 0.12 2.51 3.95 2.54 7 5.23 0.99 2.50 0.960 0.09 2.10 3.50 2.21 8 5.21 1.00 2.52 0.900 0.09 2.10 4.61 2.99 9 7.52 0.99 2.54 0.840 0.09 2.06 5.31 2.43 10 5.45 1.00 2.28 0.950 0.09 4.14 3.72 2.34 11 5.57 0.99 2.28 0.940 0.15 3.62 5.81 1.67 12 4.52 1.00 2.39 0.970 0.14 3.53 5.59 2.58 13 5.44 1.00 2.36 0.960 0.18 2.90 7.31 2.29 14 5.54 0.98 2.14 0.950 0.25 6.19 4.22 3.45