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目前预测地层破裂压力的方法很多, 多数方法中有些参数需经过大量的室内岩心试验获取。本文提出的是一种统计方法, 即通过统计水力压裂及套管鞋试漏数据直接绘制破裂压力与井深的关系曲线,并将其作为钻井工程设计及钻井液密度设计的依据, 可保证地层不被压裂, 现场应用亦很方便
Currently there are many ways to predict the fracture pressure of the formation, and some parameters in most methods need to be obtained through a large number of indoor core tests. In this paper, a statistical method is proposed, which is to directly plot the relationship between fracture pressure and well depth by statistical data of hydraulic fracturing and casing leakage test, which can be used as a basis for design of drilling engineering and design of drilling fluid density to ensure formation Not be fractured, the field application is also very convenient