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。以麻柳场嘉陵江组气藏为实例,运用该方法对嘉23、嘉43两储层的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。
This paper addresses the theory and precondition when main curvature method is used for fracture prediction; educes the main curvature value calculation formula based on differential geometry; presents a method to determine the critical curvature value necessary to generate fracture; and establishes a calculation model of main curvature method. With the gas reservoir in Jialingjiang formation of Maliuchang as an example, we predict the fracture development in Jia23 and Jia43 reservoirs. The results coincide with the production and geologic feature in the study area, and indicate the method is feasible and rational in reservoir fracture prediction.
出处
《特种油气藏》
CAS
CSCD
2005年第4期21-23,43,i0008,共5页
Special Oil & Gas Reservoirs
基金
四川省"天然气开采重点实验室"基金项目(编号GPL04-07)资助
关键词
主曲率法
计算模型
裂缝预测
嘉陵江组
main curvature method
calculation model
fracture prediction
Jialingdiang formation
作者简介
彭红利（1979-），女，硕士研究生，主要研究方向为油气藏地质及开发。
