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断层圈闭在油气勘探中是非常重要的构造 ,断层封闭机制业已成为近年来断层理论研究的新重点。在解释封闭层封闭原理的基础上 ,详述了国内应用较多的利用断面正应力评价断层封闭的分析方法 ,指出其在断层垂向方面的特定适用性 ,及在研究断层侧向封闭方面的研究中存在的不足之处。针对目前对断层封闭的研究大都限于断层垂向封闭机制的状况 ,阐明了断层泥、对置岩层毛细管压力差异、断层伴生变形构造及成岩愈合作用的断层侧向封闭机理 ,最后总结了容易形成油气运移封闭的断层特征。
Fault trap is a very important structure in oil and gas exploration. Fault sealing mechanism has become a new focus of fault theory in recent years. Based on the explanation of the principle of closed layer sealing, the paper analyzes the application methods of fault sealing in China, and points out its particular suitability in the vertical direction of fault and its application in studying lateral sealing of faults Research deficiencies. In view of the fact that the research on fault sealing is mostly confined to the vertical sealing mechanism of fault, the fault lateral sealing mechanism of fault mud, the difference of capillary pressure in opposite strata, fault associated deformation structure and diagenetic healing are clarified. Finally, Transport closed fault features.