复杂断块油气田断层封闭性综合分析方法

Integrated Approach of Faults’ Sealing Properties in Complex Fault-Block Oil & Gas Field

刘　伟¹,贾　中²,李　丽³

Liu Wei , Jia Zhong, Li Li

1. 中原油田分公司采油三厂,2. 中原油田分公司采油五厂,3. 中原油田分公司特种作业处

The No. 3 Oil Production Division , Zhongyuan Oilfield Company , SINOPEC, Shandong 252434 , P. R. China

断层封闭性研究对于确定复杂断块油气田中油气藏的分布有着极为重要的意义。断层封闭性具有侧向封闭性和垂向封闭性2 方面的含义,而断层封闭与否,不是简单地取决于断层两盘的岩性,断裂带性质是关键因素。据此,提出了一种具有普遍适用性和实用性的断层封闭性综合分析方法,即通过研究断层两侧储层的油水界面、过断层井的声波时差测井资料和统计分析断裂带的泥岩涂抹系数,从而综合判断断层的封闭状况,并用实例说明了本方法对于确定断层侧向封闭性和垂向封闭性具有良好的效果。

It is important to study fault sealing to determine the distribution of reservoir in complex fault blocks. This article states that sealing properties of fault is mainly affected by properties of acoustic logging. Thereby ,a integrated approach of studing sealing properties fault is given , which utilize oil-water interface and interval transit time and KSSF adequately ,and a case is used to demonstrate the good result of this approach.