摘要
阐述了主曲率法用于裂缝预测的理论原理及运用前提;在微分几何原理的基础上导出了构造面主曲率值的计算公式;给出了形成裂缝所必须的临界曲率值的确定方法;建立了主曲率法计算模型。以WY-ZD系气藏为实例,运用该方法对其裂缝发育情况进行了预测。预测结果与工区的生产及地质特征吻合较好,表征了主曲率法在储层裂缝分布预测中的可行性和合理性。
The paper formulates the theoretical principle and prerequisite of principal curvature method used in fracture prediction,derivation of the computing formula for principal curvature value of the structure plane on the basis of differential geometry principle,determination method of the critical valve for buckling which is necessary in fracture formation and computational model.The method is used in WY—ZD system gas reservoir to predict the fracture development condition.The result fits the production and geologic features in the work area well.It shows that the principal curvature method has feasibility and rationality in fracture distribution prediction in the reservoir.
出处
《石油工业计算机应用》
2008年第3期12-14,18,共4页
Computer Applications Of Petroleum
关键词
面曲率法
构造裂缝
预测
curvature of face method
tectonic fissure
prediction
