歧口凹陷南缘勘探潜力研究  

Study on Exploration Potential in Southern Margin of Qikou Depression

作　　者：袁淑琴[1] 周立宏[2] 肖敦清[2] 于长华[2] 董晓伟[2] 丁新林[2] 唐忠柠[2] 

机构地区：[1]中国科学院地质与地球物理研究所,北京100029 [2]大港油田分公司勘探开发研究院,天津300280

出　　处：《石油天然气学报》2008年第2期407-409,共3页Journal of Oil and Gas Technology

摘　　要：歧口南缘存在多个有利构造及岩性圈闭,新近系披覆背斜、逆牵引背斜、河道及古近系砂岩、生物灰岩及火成岩地层岩性圈闭发育,南大港、扣村、黄骅、羊南、羊北几大长期发育的断层与砂体和不整合面成为歧口凹陷油气向西南横向运移的复式运移通道。形成多层系含油的聚油格局,为下步勘探的有利地区。发育孔店-扣村、南大港、羊二庄3个大型潜山构造带;歧北、歧南两个生油次凹,中浅层构造-构造岩性油藏;中深层东营组以及沙河街组构造-岩性地层油气藏、潜山油气藏、火成岩油气藏类型是主要的勘探对象。羊三木-扣村背斜带和羊二庄断鼻构造带,是首批重要勘探目标。There are several favorable structures and lithological traps in southern margin of Qikou Depression.The drape anticline,reverse drage anticline,stream channel of Neogene and the sandstone,biolithite,igneous rock of paleogene were all developed in this area.Based on the nearest study,it was found that the oil and gas which formed in Qikou Depression migrated to southwest through the pathways composed by the long-term developing fault such as Nandagang Fault,Kouchun Fault,Yangnan Fault,Yangbei Fault and as well as sandstone and the surface of unconformity.Consequently,as a result,it formed multilayer(from N to O)oil-bearing accumulation framework which become the favorable exploration zone for next exploration.And the major exploration targets includes 3 large-scale burial tectonic zones of Koudian-Kouchun,Nandagang,Yangerzhuang,2 oil-forming sub-depressions of Qinnan and Qibei,structure-lithologic pool of middle-superficial layer and the structure-lithologic stratum,burial and igneous pool of middle-deep layer.The first exploration targets are Yangsanmu-Kouchun anticline and Yangerzhuang fault-nose.

关 键 词：歧口南缘 油气藏类型 勘探潜力 

分 类 号：P618.13[天文地球—矿床学]