基于真三轴物理模拟多簇裂缝均衡起裂及延伸规律实验

孔祥伟,严仁田,许洪星,李松

Experiment on equilibrium initiation and extension of multiple clusters of fractures based on true triaxial physical simulation

Xiangwei KONG,Rentian YAN,Hongxing XU,Song LI

表2 长7储层三向地应力梯度

Table 2 Three-directional geostress gradient of Chang 7 reservoir

参数 单位 最大值 最小值 平均值 Gσh MPa/100 m 1.92 1.81 1.86 GσV MPa/100 m 2.37 2.33 2.35 GσH MPa/100 m 2.26 2.23 2.24 Gpor MPa/100 m — — 0.7