断裂对凹陷区上生下储油运聚成藏的控制作用——以松辽盆地三肇凹陷扶、杨油层为例  

CONTROLLING ACTION OF THE FAULTS OVER THE OIL MIGRATION AND ACCUMULATION IN COMBINATION OF UPPER SOURCE ROCKS AND LOWER RESERVOIRS IN THE SAG AREA:AN EXAMPLE FROM FY OIL LAYERS IN SANZHAO SAG OF SONGLIAO BASIN

作　　者：马晓红[1] 

机构地区：[1]吉林油田公司新木采油厂,吉林松原131106

出　　处：《大庆石油地质与开发》2013年第5期22-26,共5页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家油气重大专项课题"大气田形成条件;成藏机制与富集规律研究"(2011ZX05007-002)

摘　　要：通过三肇凹陷扶、杨油层油藏解剖和断裂对油藏的控制作用研究认为:油主要分布在断裂密集带两侧,剖面上从上部的FI油层组至下部的YI油层组油逐渐减少;断裂对油运聚成藏有控制作用,油源断裂是油气运移的主要通道;断裂控藏模式为上覆青一段源岩生成的油,沿油源断裂向下倒灌运移,进入扶、杨油层,然后向断裂密集带两侧的地垒构造侧向运移,最后在地垒构造上的断块、断层遮挡或断层—岩性圈闭中聚集成藏。The anatomy of FY oil reservoirs and study on the controlling action of the faults over the oil migration and accumulation show that the oil is mainly distributed along the two sides of the clustered fault belt, and moreover the oil productivity drops gradually from Upper FI oil group to Lower YI one in section; the faults play a controlling role in the oil migration and accumulation, and moreover the faults connected the source rock are main transporting pathways for the hydrocarbon migration ; the reservoir model controlled by the faults is that the oil generated in over- lying K1 qnl source rock migrates downword along the source rock faults into FY oil layers, and then migrates later- ally to the horst structures in the two sides of the clustered fault belts, finally accumulates and enriches in the fault blocks, fault sealed or fauh-lithology traps on the horst structures.

关 键 词：断裂 凹陷区 上生下储 油源断裂 断裂密集带 倒灌运移 正向构造 

分 类 号：TE121.1[石油与天然气工程—油气勘探]