白家海地区下侏罗统三工河组高分辨层序地层格架内岩性油气藏研究  

Analysis of Litho-stratigraphic Reservoirs Distribution in High-resolution Sequence Stratigraphic at the Lower Jurassic Sangonghe Formation in Baijiahai Area

作　　者：于景维 张庆伟 祁利祺 于美琪 张晓童 潘凤超 褚旭 YU Jingwei;ZHANG Qingwei;QI Liqi;YU Meiqi;ZHANG Xiaotong;PAN Fengchao;CHU Xu(Karamay Campus of China University of Petroleum,Karamay 834000,Xinjiang,China;Institute of Central Asia in Exploration and Development Faculty in Xinjiang Oil Field,Karamay 834000,Xinjiang,China)

机构地区：[1]中国石油大学(北京)克拉玛依校区,新疆克拉玛依834000 [2]新疆油田公司勘探开发研究院中亚所,新疆克拉玛依834000

出　　处：《西北地质》2022年第2期199-208,共10页Northwestern Geology

基　　金：新疆自治区自然科学基金“砂砾岩致密储层甜点成因机理”(2021D01A201);国家重大专项“大型油气田及煤层气开发”(2011ZX05001-005-01)联合资助。

摘　　要：下侏罗统三工河组为白家海地区油气勘探重要层系之一,层序地层格架存在争议,层内岩性油气藏的分布研究较少,阻碍侏罗系油气进一步勘探开发。在高分辨层序地层学理论指导下,通过对露头、岩心、地震及钻测井等资料分析,明确岩性油气藏在研究区时空分布特征。结果表明,三工河组划分为1个长期旋回,3个中期旋回及9个短期旋回;所建立的高分辨层序地层格架在区内等时对比应用较好。岩性油气藏发育受控于中期基准面旋回的演化,不同中期基准面旋回内储集砂体发育范围和叠置方式存在明显差异,造成岩性油气藏类型时空分布发生变化。其中,MSC1和MSC3有利于岩性油气藏的分布,推测靠近阜康凹陷附近,MSC2有利于形成大面积油气藏。The Sangonghe formation of low Jurassic in Baijiahai area is one of the main hydrocarbon-bearing strata, where sequence stratigraphic framework has not reach agreement, and litho-stratigraphic reservoirs analysis has thin research base, all of which are the key reasons for hindering deeper exploration and development. The result shows according to the theory of the high-resolution sequence stratigraphic, combined with outcrops, cores, seismic, drilling and logging data analysis, Sangonghe formation has been divided into one long-term base level cycle, three mid-term base level cycles and nine short-term base level cycles, and sequence framework has a favorable application effect in study area. Litho-stratigraphic reservoirs are controlled by mid-term base level cycle, and reserve sands have different development region and superimposed type in different mid-term base level cycle, which causes litho-stratigraphic reservoirs has unequal distribution. MSC1 and MSC3 are helpful for development of litho-stratigraphic reservoirs, and MSC3 are helpful for development of oil reservoir near Fukang sag.

关 键 词：准噶尔盆地 白家海地区 高分辨层序地层 砂体展布 岩性油气藏 

分 类 号：TE112.422[石油与天然气工程—油气勘探]