Quantitative evaluation of lateral sealing of extensional fault by an integral mathematical-geological model
LYU Yanfang,HU Xinlei,JIN Fengming,XIAO Dunqing,LUO Jiazhi,PU Xiugang,JIANG Wenya,DONG Xiongying
Table 1. Quantitative evaluation data of the lateral sealing of Well NP103X2 sealed by F1 fault in the 1st structure of Nanpu Sag.
Reservoir No. Attribute of reservoir rock Attribute of fault rock Integral mathematical-geological method Method without considering the diagenetic time Method simply considering the diagenetic time Oil and gas shows in formation testing Actual height of hydrocarbon column/m
Burial depth/m Clay content/% Entry pressure/MPa Clay content/% Dip/(°) Entry pressure/MPa Entry pressure difference between fault rock and reservoir rock/MPa Predicted height of hydrocarbon column/m Entry pressure difference between fault rock and reservoir rock/MPa Predicted height of hydrocarbon column/m Entry pressure difference between fault rock and reservoir rock/MPa Predicted height of hydrocarbon column/m
1 1 688 33 0.51 74 54 0.61 0.10 75 -0.10 0 0.12 97 Oil 75
2 1 745 33 0.52 73 55 0.62 0.09 70 -0.11 0 0.12 90 Oil 69
3 1 853 34 0.56 81 56 0.68 0.12 91 -0.10 0 0.15 117 Oil 90
4 1 948 34 0.58 82 57 0.70 0.12 95 -0.12 0 0.15 120 Oil 92
5 2 250 33 0.63 80 39 0.84 0.21 165 0.03 20 0.24 188 Oil 162