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地层流体压力的预测一直是油气勘探中的热点。文中用塔里木盆地库车坳陷的异常高压井测井资料和压力数据,研究测井响应与异常高压的关系,探讨泥岩孔隙度演化与测井响应的对应关系,认为:有效应力与泥岩孔隙度的相关关系并不总是有效,因此盆地模拟中普遍应用的以此相关关系为基础的压力分析方法需要改进。在实际应用中,应首先确定流体异常压力的成因,以了解压力预测方法的有效性,仔细解释模拟的结果。图2参4(邵新军摘)
Prediction of formation fluid pressure has been a hot spot in oil and gas exploration. In this paper, the logging data and pressure data of abnormal high-pressure well in the Kuqa Depression of Tarim Basin are used to study the relationship between well logging response and abnormal high pressure. The relationship between mudstone porosity evolution and well logging response is discussed. It is considered that the relationship between effective stress and mudstone porosity Is not always valid, the stress analysis method based on this correlation commonly used in basin simulation needs to be improved. In practice, the cause of abnormal fluid pressure should be determined first to understand the effectiveness of the pressure prediction method and to explain carefully the results of the simulation. Figure 2 Senate 4 (Shao Xinjun pick)