A Reasonable Approach for the Development of Shale Gas Wells with Consideration of the Stress Sensitivity
作者: Jin Pang, Di Luo, Haohong Gao, Jie Liang, Yuanyuan Huang and Qi Liu
刊名: Fluid Dynamics & Materials Processing, 2019, Vol.15 No.1 20 (1 2019), pp.39-51
来源数据库: Tech Science Press
关键词: ShaleStress sensitivityProduction modeProduction allocationFracturesMatrix.
原始语种摘要: High-pressure deep shale gas reservoirs are usually highly stress-sensitive. When the reasonable production mode of shale gas well is built, the impact of strong stress sensitivity should be fully considered. First, this study calculated the relationship between permeability and formation pressure under different elastic modulus based on the shale lithology of Long Ma Xi formation in Sichuan Basin by testing and analysing the mechanical parameters of the rock. According to numerical simulation result, when the elastic modulus exceeds 14.0 GPa, the stress sensitivity of the matrix will slight affect the cumulative gas production of shale gas. Second, the changing relation between fracture conductivity and permeability with fracture pressure and the time of pressure acts were experimentally...
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  • shale 页岩
  • lithology 岩性学
  • numerical 数字的
  • cumulative 累积的
  • production 生产
  • permeability 磁导率
  • Basin 水池
  • allocation 分配
  • stress 应力
  • sensitivity 灵敏度