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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 depth of the new field to be buried reservoir depth of more than -4600 meters. In view of the fact that the three-dimensional ground stress can not be widely tested because of the site and the funds, several stress points measured by the hydraulic fracturing method and stress orientations of the borehole cavern azimuth stress indication technique are selected as the basis to establish the finite element three- Numerical model. Through the finite element inversion of the regional stress field, the direction and magnitude of the maximum principal stress in the stress field are optimally coupled with the measured values to obtain the overall distribution of the deep stress field in the study area.