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地应力预测是专门为估算地层应力梯度的大小而作的计算,这些应力称为上覆层压力、孔隙压力及裂缝压力。这种估算作为制定优质钻井计划和实施安全高效钻井作业的基础工作是绝对必要的。预测方程中所用的数据包括: (1)地层体积密度;
In-situ stress prediction is calculated specifically to estimate the magnitude of the stress gradient in the formation. These stresses are called overburden pressure, pore pressure, and fracture pressure. This assessment is absolutely necessary as a basis for developing good drilling plans and implementing safe and efficient drilling operations. The data used in the prediction equations include: (1) formation bulk density;