利用异常地层压力参数判断断层封闭性Fault sealing capacity identification based on abnormal formation pressure parameters
白新华,罗群
Bai Xin-hua; et al. ( Daqing Petroleum Institute;
摘要(Abstract)：
在油气藏系统的研究中,断层封闭性的研究是必不可少的,而研究断层封闭的问题是一项难度较大的课题。以断层两侧的泥岩具有异常压力时,泥岩塑性增强,断层容易被泥岩所填充造成封堵这一基本原理为基础,探讨了判别泥岩塑性强弱的方法及利用异常压力参数来判断断层封闭性好坏。介绍了压力系数的求取方法,并利用该方法研究了宋芳屯油田的断层封闭性,研究结果得到了证实。因此,利用异常地层压力系数判断断层封闭性是一种有效方法。
It is not easy to study the sealing capacity of faults. When there is ahnormal pressure on both sides of the fault, the plasticity of shale will increase and the fault will be filled by shale easily to form sealing. Based on the above mentioned basin principles, this paper establishes a method to determine strong or weak plasticity of shales, and the sealing capacity of faults according to abnormal pressure parameters. The method to derive pressure coefficient is introduced and with the application of this method Songfan-gtun oil reservoir is studied, and the testing results are confirmed.
关键词(KeyWords)：
断层;断层封闭性;异常压力系数
fault; sealing capacity of fault; abnormal pressure coefficient
基金项目(Foundation):
作者(Authors):
白新华,罗群
Bai Xin-hua; et al. ( Daqing Petroleum Institute;
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