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张家垛油田断层发育较好,发生的复杂情况比较多。钻井过程中阻、卡频发,井壁失稳。通过方法优选采用岩石声发射Kaiser效应试验法来求取适合张家垛油田的构造应力系数,同时结合测井资料利用分层地应力的解释模型得出该油田地层地应力的分布规律。所得到的该油田的地应力分布规律情况为下一步掌握地层三压力剖面,并最终确定安全泥浆密度窗口提供依据。
Zhangjiapun fault better oil field, the occurrence of more complex situation. Drilling process resistance, frequent card, wall instability. Through the method, the rock acoustic emission Kaiser effect test method is preferably used to determine the tectonic stress coefficient suitable for Zhangjiaduo oil field. At the same time, with the logging data, the stratigraphic geostress distribution law of the strata is obtained by using the stratified stress interpretation model. The obtained geostress distribution law of the oilfield provides the basis for grasping the formation three pressure profiles and finally determining the safe mud density window.