孤西断层对孤北潜山带天然气运移和聚集的影响  

Effects of Guxi Fault on gas migration and accumulation in Gubei buried hill zone

作　　者：李宗亮[1] 蒋有录[1] 刘华[1] 

机构地区：[1]中国石油大学(华东)地球资源与信息学院,山东东营257061

出　　处：《油气地质与采收率》2008年第5期24-26,共3页Petroleum Geology and Recovery Efficiency

摘　　要：为研究孤西断层对渤南洼陷深层天然气向孤北潜山带运聚的影响,对孤西断层的断面形态特征和断层输导效率进行了分析。结果表明,从渤南洼陷烃源岩生成的天然气在孤西1号断层的义115井部位呈发散状,在孤西2号断层的渤古4井和义132井部位呈汇聚状向孤北潜山带方向运移。孤西2号断层整体为高效输导体系,不同部位输导天然气的效率存在着差异。孤西断层对渤南洼陷深层油型气向孤北潜山带运移具有重要的控制作用,断层凸面和输导效率高的部位对应着油型气的优势运移方向。For studying the effects of Guxi fault on the deep natural gas migration of Bonan Sag toward Gubei buried hill,the structural figures of Guxi fault plane and the natural gas transporting efficiency along the fault were analyzed.It is pointed out that gas generated from source rocks in Bonan Sag migrates toward Gubei buried hill zone by the style of spreading from Well Yi115 block nearby No.1 fault and accumulating to Well Bogu4 and Well Yil32 blocks nearby No.2 fault.The transportation efficiency of No.2 fault is high but varying in different places.Guxi fault has an important effect on deep oil-type gas migrating from Bonan Sag toward Gubei buried hill zone.The convex plane of fault and the position with high transportation efficiency correspond to the dominant migrating direction of oil-type gas.

关 键 词：深层天然气 运移 断面形态 输导效率 孤西断层 

分 类 号：TE112.12[石油与天然气工程—油气勘探]