海拉尔盆地乌尔逊—贝尔凹陷岩性—地层油藏成藏特征及勘探方向  

Forming characteristics of lithologic and stratigraphic reservoirs and its exploration direction of Wurxun-Beir sag in Hailar Basin

作　　者：刘赫[1,2] 李军辉[2] 金镇龙[3] 

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勘探开发研究院,黑龙江大庆163712 [3]大庆油田有限责任公司海拉尔勘探开发指挥部,黑龙江大庆163712

出　　处：《地质科学》2011年第4期1079-1093,共15页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目(编号:2008E-1209)资助

摘　　要：乌尔逊—贝尔凹陷是海拉尔盆地油气勘探的主战场,其岩性—地层油藏勘探程度较低,剩余油气资源勘探潜力较大。对乌尔逊—贝尔凹陷成藏特征的研究表明,岩性—地层油藏是主要的油藏类型,可分为岩性油藏、地层油藏和复合油藏3种类型油藏。油气主要沿不整合面及不同级次湖泛面上下分布,平面上围绕生油洼槽分布,不同的构造带上,发育的岩性一地层油藏类型特征不同。研究认为,有效烃源岩、有利的沉积相带、次生孔隙发育带及断裂坡折与砂体的匹配关系是控制岩性油气藏的主要因素,根据岩性—地层油藏成藏特征及分布规律,对有利勘探区带进行了预测,经钻探新发现了3个整装规模储量的岩性一地层油藏,勘探效益显著。WurxunBeir sag is the mainly area of oil and gas exploration in Hailar Basin.Its exploration of lithologic and stratigraphic reservoirs is low degree and has a great potential of residual hydrocarbon resources.The research on reservoir forming characteristic indicate that there are three sets of regional source rocks,six depositional systems,three types reservoirs and many abnormal high porosity zone and develop multiphase structural movement and depositional break and contains three sourcereservoircaprock assemblages.These properties offer the favorable geological condition for forming the lithologic and stratigraphic reservoirs.Based on the origin and geometry of traps,the lithologic and stratigraphic reservoirs are divided into three types of lithologic reservoir,stratigraphic reservoir and compound reservoir.The lithologic and stratigraphic reservoirs concentrate in the edge of trough belt,large slow slop fold belt,lower uplift in trough belt and terrace fault steep slop fold belt and distribute around the source trough and appear halfannularity.According to forming characteristic and distributing rule of the lithologic and stratigraphic reservoirs,the favorable play and exploration direction were predicted by comprehensive analysis method.Three fullscale the lithologic and stratigraphic reservoirs were founded by drilling.The distinct exploration benefits were obtained.

关 键 词：乌尔逊-贝尔凹陷 沉积体系 岩性-地层油藏 成藏特征 勘探方向 

分 类 号：P618.13[天文地球—矿床学] TE122.2[天文地球—地质学]