曲堤油田中南部油气藏类型及成藏主控因素  

South-central Reservoir Type and Hydrocarbon Accumulation Main Controlling Factors Analysis in Qudi Oilfield

作　　者：国景星[1] 郭卫萍[1] 修春红[2] 贺岁锋 

机构地区：[1]中国石油大学,山东青岛266555 [2]中石化胜利油田分公司,山东东营257000

出　　处：《特种油气藏》2015年第1期8-11,151,共4页Special Oil & Gas Reservoirs

基　　金：华北油田2011年校企合作科研项目"留西留北构造带上第三系油藏沉积相研究"(HBYT-CY3-2011-JS-345)

摘　　要：曲堤油田中南部油气分布及油藏特征复杂。为进一步摸清油气分布规律,深化油气勘探,针对馆三段、沙三段、沙四上亚段和沙四下亚段等4套含油层系,运用油气藏精细解剖技术,识别出断层、岩性、复合等多种类型油气藏。宏观上,区域构造背景、油源断裂及区域性盖层控制曲堤油田的油气成藏;微观上,低级序断层、沉积微相、不整合及微构造控制区块内的油气分布。由断层、不整合面、砂体组成的阶梯状输导成藏模式为研究区主要成藏模式。Qudi Oilfield south- central part is featured by complex oil- gas distribution and reservoir type. In order to determine oil- gas distribution and perform further exploration,fine reservoir characterization is used to identify fault reservoir,lithology reservoir,composite reservoir and other reservoirs in four oil- bearing series of Guan3 formation,Sha3 formation,sub- member of upper Sha4 formation and sub- member of lower Sha4 formation. At macro level,the hydrocarbon accumulation of Qudi Oilfield is controlled by regional structural background,oil- migrating faults and regional cap- rock. At micro level,oil- gas distribution in this fault- block is controlled by lower- order faults,sedimentary micro- facies,unconformity and micro- structures. Step transporting hydrocarbon accumulation which consists of faults,unconformity planes and sandbodys is the dominant hydrocarbon accumulation mode.

关 键 词：油气藏类型 主控因素 成藏模式 曲堤油田 曲9-111断块 

分 类 号：TE122.2[石油与天然气工程—油气勘探]