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通过对稳定沉降地区与山前挤压构造区的地球物理测井信息的深度域特征进行理论分析和对比 ,提出了一种基于测井信息计算最大主地应力的统计模型法。应用该方法对塔里木盆地库车地区地应力进行了实际计算 ,其结果与实验结果相符 ,同时利用椭圆井眼法确定最大主应力方向。最后 ,对山前挤压构造区的地应力分布与油气藏分布关系进行了探索
Based on the theoretical analysis and comparison of the geophysical logging information in the stable settlement area and the piedmont extrusion area, a statistical model method based on well logging information to calculate the maximum principal stress is proposed. The method was applied to calculate the stress in Kuche area of Tarim Basin. The results are consistent with the experimental results. Meanwhile, the direction of maximum principal stress is determined by ellipse borehole method. Finally, the relationship between the distribution of geostress and the reservoir distribution in the Piedmont extrusion tectonic zone