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利用岩屑进行地应力测量的关键是将二次筛分的岩屑在实验室进行压实 ,以恢复到地层应力状态 ,同时测量有关数据 ,进而求出岩石的泊松比。讨论了地应力的计算模型及相关系数的确定方法。所测地应力与现场水力压裂资料反算结果基本一致。
The key to using geo-crust for geo-stress measurement is compaction of the secondary-screened debris in the laboratory to restore the stratum’s stress state and measure the related data to determine the Poisson’s ratio of the rock. The calculation model of geostress and the method of determining the correlation coefficient are discussed. The measured geostress and the field hydrofracture data are basically the same.