徐春双,徐淑艳,孙建军
XU Chunshuang,XU Shuyan,SUN Jianjun

• 1:大庆油田有限责任公司第二采油厂

摘要(Abstract)：

为了研究碎屑岩盆地中断裂与砂泥组合对油气运移的控制作用,在砂泥组合及其被断裂破坏特征研究的基础上,分析不同运移方向下形成的油气藏与断裂及砂泥组合配置关系,确定了断裂与砂泥组合的配置类型,并以南堡凹陷为例研究其对油气运移的控制作用。结果表明:断裂与薄砂厚泥组合配置,对油气垂向运移起封闭作用,对侧向运移起同层侧接作用;断裂与砂泥等厚组合配置,当砂泥岩层未被断裂完全错开,对油气垂向运移起封闭作用,对侧向运移起同层侧接作用,当砂泥岩层被断裂完全错开,对油气垂向运移不起封闭作用,对侧向运移起变径作用;断裂与厚砂薄泥组合配置,对油气垂向运移不起封闭作用,对侧向运移起变径作用。
In order to study the controlling action of the fault and sandstone-mudstone combination on the oil and gas migrations in clastic basins,on the basis on the research on the combination and its destroyed characteristics by the faults,the configuration relationships between the faults and combination are analyzed for the accumulated hydrocarbon reservoirs in different migration directions,the configuration types between these faults and combination are determined,and moreover the controlling action on the oil and gas migrations are studies by taking Nanpu Sag as an example.The results show that the configuration between the faults and thin sandstone-thick mudstone combination plays the sealing role in the oil and gas vertical migration and same-layer flanking role in the oil and gas lateral migration;for the configuration of the faults and isopachous sandstone-mudstone combination,when the sandstone and mudstone layers are not completely staggered by the faults,the sealing action is played on the hydrocarbon vertical migration and furthermore the flanking role is shown on the lateral migration;when the layers are completely staggered by the faults,the sealing action is not played on the hydrocarbon vertical migration and furthermore the diameter-reducing role is shown on the lateral migration;the configuration between the faults and thick sandstone-thin mudstone combination doesn't play the sealing role in the oil and gas vertical migration and moreover does the diameter-reducing role in the lateral migration.

关键词(KeyWords)： 断裂;砂泥组合;配置类型;油气垂向运移;油气侧向运移;控制作用
fault;sandstone-mudstone combination;configuration type;oil & gas vertical migration;oil & gas lateral migration;controlling action

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目“油源断裂转换带优势输导运移油气条件研究”(41372153)资助

作者(Author): 徐春双,徐淑艳,孙建军
XU Chunshuang,XU Shuyan,SUN Jianjun

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