摘要
新场须二段储层埋深大于-4600米。鉴于其三维地应力由于场地及经费不能大范围测试,选取周边同等深度由水力压裂法得到的几个应力点测试值和井壁崩落方位应力指示技术得到的应力方位为依据,建立有限元三维数值模型。通过区域应力场的有限元反演使应力场的最大主应力方向和量值与实测值达到最佳耦合,从而得到研究区深部应力场整体分布特征。
The reservoir depth in Xinchang Field is greater than-4600m. A tri-dimensional finite element numerical model is established by selecting stress values tested by the hydraulic fracturing method and stress directions acquired by the stress ori-entation technique at well cavings. The overall distribution of the deep stress field in the study area is acquired by coupling the direction and magnitude of the maximum principal stress, obtained by the finite element stress field inversion, with the meas- ured values.
出处
《地质灾害与环境保护》
2014年第1期102-106,共5页
Journal of Geological Hazards and Environment Preservation
关键词
有限元
三维模型
地应力
反演
finite element~ three-dimensional model~ terrestrial stressl inversion
