松辽盆地西部斜坡区萨尔图油层油气分布特征及控制因素  

DISTRIBUTION CHARACTERISTICS AND CONTROLLING FACTORS FOR RESERVOIRS OF SAERTU OIL LAYERS IN WEST SLOPE OF SONGLIAO BASIN

作　　者：张庆石[1,2] 于丹[2] 李君文[2] 

机构地区：[1]成都理工大学沉积地质研究院,四川成都610059 [2]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2013年第5期17-21,共5页Petroleum Geology & Oilfield Development in Daqing

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

摘　　要：通过对松辽盆地西部斜坡区萨尔图油层已发现油藏的油气藏类型、分布特征及控制因素的系统分析,认为西部斜坡区的萨尔图油层从东到西含油气层位逐渐减少,主要发育砂岩上倾尖灭油藏、岩性—构造油藏、构造—岩性油气藏、微幅背斜油气藏及岩性油气藏等5种油气藏类型,其中以构造—岩性复合油气藏为主;西部斜坡的北西向的3条油气运移路径控制了西斜坡区油气的分布,北东向及北北东向的构造带控制着油气的聚集部位;鼻状构造样式、地层超覆构造样式及与砂体展布的匹配关系控制着油气富集程度和油气藏类型。The systematical analyses of the types of the discovered reservoirs, their distribution characteristics and controlling factors for Saertu oil layers in West Slope of Songliao Basin show that the number of the oil-bearing layer in Saertu layers decreases gradually from the east to the west, and moreover the five kinds of petroleum reservoir types are mainly developed as follows： sandstone updip pinchout and lithologic-structural oil reservoir, structural-li- thologic, micro-amplitude anticlinal and lithologic oil and gas reservoirs, among the above, the structural-lithologic combined oil and gas reservoirs are predominant; the oil and gas distribution in West Slope is controlled by three NW-strike migration paths, the petroleum accumulation parts are dominated by NE and NNE-strike structure belts; and furthermore the hydrocarbon enriched degree and types are controlled by the patterns of the nose and strati- graphic overlap structures and moreover the matching relationship between the patterns and sandbody expansion.

关 键 词：松辽盆地 西部斜坡区 萨尔图油层 油气分布特征 控制因素 运移路径 

分 类 号：TE122.1[石油与天然气工程—油气勘探]