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1 含气页岩双层模型1

Table 1 The double-layer model 1 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 21.28 0.272 3268 1829 2500 0.248 0.090 下层页岩 33.27 0.160 3678 2339 2620 0.056 0.024