基于孔隙结构和多相渗流能力的鄂尔多斯盆地致密砂岩储层品质分类方法研究

徐风, 司兆伟, 梁忠奎, 田超国, 罗兰, 郭宇航

A method for quality classification of tight sandstone reservoirs in the Ordos Basin based on pore structures and multiphase seepage capacity

XU Feng, SI Zhao-Wei, LIANG Zhong-Kui, TIAN Chao-Guo, LUO Lan, GUO Yu-Hang

表2 太原组毛管压力曲线预测样本

Table 2 Sample predicted capillary pressure curves for Taiyuan Formation

标号 AC/ (μs·m-1) CNL/ % DEN/ (g·cm-3) GR/ API RT/ (Ω·m) RXO/ (Ω·m) Shg60/ MPa Shg40/ MPa Shg30/ MPa Shg20/ MPa Shg10/ MPa Shg5/ MPa Shg1/ MPa X37-1 208.2 9.25 2.57 111.85 52.83 39.77 175.11 24.24 7.54 2.79 1.20 0.75 0.01 X37-2 217.3 8.35 2.5 84.04 44.02 31.92 52.50 5.77 2.24 0.97 0.45 0.26 0.01 X37-3 218.02 8.1 2.51 67.95 39.54 28.42 19.42 2.26 1.19 0.85 0.62 0.51 0.01 X37-4 216.3 8.0 2.53 63.66 39.13 28.05 8.40 1.76 1.01 0.83 0.64 0.50 0.01 X37-5 208.53 10.24 2.59 83.86 54.8 37.21 10.74 1.94 1.08 0.70 0.53 0.41 0.01 X37-6 217.03 7.91 2.5 80.54 40.99 27.54 17.26 2.01 1.14 0.80 0.54 0.38 0.01 X37-7 218.55 7.54 2.48 65.38 39.03 25.7 7.86 1.51 0.95 0.71 0.52 0.39 0.01 X37-8 219.66 6.91 2.47 55.85 42.87 27.96 57.15 3.23 1.33 0.70 0.42 0.25 0.01 X37-9 214.09 7.5 2.52 56.29 41.97 26.64 4.81 1.16 0.83 0.63 0.48 0.33 0.01 X37-10 214.51 6.62 2.49 63.31 44.59 28.04 9.50 1.62 0.96 0.74 0.55 0.34 0.01 X37-11 215.51 6.74 2.48 63.22 44.87 28.27 9.31 1.45 0.82 0.52 0.35 0.21 0.01 X37-12 215.32 6.51 2.49 61.31 44.62 28.58 11.63 1.85 0.96 0.61 0.39 0.22 0.01 X37-13 215.13 6.63 2.49 59.68 44.59 28.78 7.83 1.47 0.85 0.54 0.35 0.21 0.01 X37-14 215.69 7.22 2.46 57.4 44.6 30.52 4.10 1.01 0.65 0.47 0.36 0.22 0.01 X37-15 208.11 9.38 2.54 70.68 54.42 38.48 6.22 1.27 0.70 0.42 0.25 0.15 0.01