断裂密集带对油气运移和聚集的制约研究——以王府凹陷为例  

Intensively faulted zones and their controlling on the hydrocarbon migration and accumulation:a case study of the Wangfu depression,Songliao basin

作　　者：陈方文[1] 卢双舫[1] 徐运亭[2] 邬在宇[2] 魏向军 

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]大庆油田有限责任公司采油十厂,黑龙江大庆166405 [3]长庆油田有限责任公司采油三厂,宁夏银川718500

出　　处：《中国矿业大学学报》2011年第2期235-239,共5页Journal of China University of Mining & Technology

基　　金：国家重点基础研究发展计划(973)项目(2006CB202307);教育部新世纪优秀人才支持计划项目(NCET-04-0345)

摘　　要：为弄清断裂密集带对油气运移、聚集的控制作用,选取构造特征典型、油源单一的王府凹陷为例,按断裂密集带平、剖面特征对其进行分类.将王府凹陷扶杨油层断裂密集带分为4种类型,即地堑-反向断阶组合、地堑-反向-顺向断阶组合、地堑-地垒-反向断阶组合和地堑-地垒-顺向断阶组合.通过分析断裂密集带中油气显示情况,探讨断裂密集带对油气运聚的制约作用.结果表明:断裂密集带对油气二次运移具有横向遮挡、侧向输导作用,并制约油气聚集.当断裂密集带走向与地层倾向近平行时,其两侧地垒、反向断阶是油气聚集优势部位;当其走向与地层倾向近垂直时,靠近生烃凹陷一侧的地垒、反向断阶优先捕捉油气,断裂密集带交汇处是油气富集有利部位.In order to understand the controlling of intensively faulted zones on the hydrocarbon migration and accumulation,the Wangfu depression was selected as a case study.Based on the lateral and vertical characteristics of intensively faulted zones,the intensively faulted zones were classified into four types in the Fuyang oil layer of Wangfu depression,including graben-antithetic fault terrace,graben-antithetic-consequent fault terrace,graben-horst-antithetic fault terrace and graben-horst-consequent fault terrace.Through analyzing evidences of Fuyang oil layer in intensively faulted zones,the effect of intensively faulted zones on hydrocarbon migration and accumulation were discussed.The results show that the intensively faulted zones have transverse sealing and lateral fluid conduction function in secondary migration,and influence oil-gas accumulation.While the strike of the intensively faulted zone nearly parallels the dip direction of formation,the horst and antithetic on both sides of it are favorable part to collect oil.While the strike of the intensively faulted zone nearly plumbs the dip direction of formation,the horst and antithetic on the side that is near the depression center are propitious to catch oil.The crossovers of the intensively faulted zones are avail for oil accumulation.

关 键 词：王府凹陷 扶杨油层 二次运移 断裂密集带 

分 类 号：TE122.1[石油与天然气工程—油气勘探]