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断层封闭性研究对于正确认识油气运移、聚集、保存及现今油气分布规律具有重要意义。本文以川东典型构造为例,在充分剖析断裂组合特征及其成因机制的基础上,利用动静态资料,通过断层两盘的岩性配置、泥岩涂抹情况,流体性质与温压系统,断层带内充填物特性,以及井动态特征等分析,开展了研究区主要断层的封闭性研究,最后分析了现今断裂与油气分布的关系。
Fault sealing research is of great significance for the correct understanding of hydrocarbon migration, accumulation, preservation and the current distribution of oil and gas. In this paper, based on the typical structures in eastern Sichuan Province, based on a thorough analysis of the characteristics of fracture assemblages and their genetic mechanism, the authors use the dynamic and static data to analyze the lithologic configuration, mud smear, fluid properties and temperature and pressure systems, fault zones The characteristics of the filling, the dynamic characteristics of the well and so on, the study on the sealing of the main faults in the study area is carried out. Finally, the relationship between the present faults and the distribution of oil and gas is analyzed.