基于叠前直接反演的页岩气储层脆性及裂缝参数预测方法

石学文, 王畅, 张洞君, 冯艳雯

A method for predicting the brittleness and fracture parameters of shale gas reservoirs based on prestack direct inversion

SHI Xue-Wen, WANG Chang, ZHANG Dong-Jun, FENG Yan-Wen

表2 含气页岩双层模型2

Table 2 The double-layer model 2 of gas-bearing shales

E/GPa σ Vp/ (m·s-1) Vs/ (m·s-1) ρ/ (kg·m-3) δN δT 上层页岩 17.47 0.256 2960 1695 2420 0.181 0.068 下层页岩 9.57 0.324 2430 1240 2350 0.104 0.032