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ID:32364613
大小:1.63 MB
页数:6页
时间:2019-02-03
《南苏门达腊盆地油气地质特征与勘探潜力分析》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、第35卷第4期世界地质Vol.35No.42016年12月GLOBALGEOLOGYDec.2016文章编号:1004—5589(2016)04—1052—06南苏门达腊盆地油气地质特征与勘探潜力分析1112卢小新,任怀建,周国文,刘厚武1.中化石油勘探开发有限公司,北京100031;2.长城钻探工程公司,北京100101摘要:以广泛收集的数据资料为依据,运用含油气盆地理论方法,总结南苏门达腊盆地构造沉积演化和油气地质特征,探讨油气分布规律,分析其勘探潜力。结果显示,南苏门达腊盆地是新生代弧后裂谷盆地,经历了裂前、裂谷、过渡、坳陷和反转等5个演化阶段。主力烃源岩为过渡期
2、沉积的炭质页岩和煤层,储集层主要为上渐新统砂岩、下中新统灰岩和裂缝基底。油气总体呈现“深层气、中层油和气、浅层油”的分布特征,主要富集于构造及构造复合相关圈闭中。断裂、储层发育有利相带和凹中隆是控制油气分布的主要因素。盆地油气成藏条件良好,具有较好的勘探潜力。生烃灶周边断裂发育的斜坡、古隆起是有利的勘探区,凹陷内的岩性、地层圈闭也是有利的勘探目标,应加大对此类圈闭的研究和勘探力度。关键词:南苏门达腊盆地;油气地质;油气分布;勘探潜力中图分类号:P618.130.2文献标识码:Adoi:10.3969/j.issn.1004-5589.2016.04.015Petrole
3、umgeologyfeaturesandexplorationpotentialanalysisofSouthSumatraBasin1112LUXiao-xin,RENHuai-jian,ZHOUGuo-wen,LIUHou-wu1.SinochemPetroleumExplorationandProductionCo.,Ltd.,Beijing100031,China;2.CNPCGreatWallDrillingCompanyLtd.,Beijing100101,ChinaAbstract:Basedonthedatacollectedfromvarioussou
4、rcesandapplyingthetheoriesandmethodsofbasinanalysis,thispapersummarizesthetectonic-sedimentationevolutionandpetroleumgeologycharacteristicsofSouthSumatraBasin,discussestheoilandgasdistributionpatternsandanalyzesitshydrocarbonexplorationpotential.TheresultsshowthattheSouthSumatraBasinisaC
5、enozoicback-arcriftbasin,experiencing5stagesinevolution,includingpre-rifting,rifting,transition,sagandcompression.Theprincipalsourcerockofthebasiniscarbona-ceousshaleandcoaldepositingduringthetransitionstage.ThemainreservoirsarefoundinupperOligocenesand-stones,lowerMiocenecarbonatesandpr
6、e-Paleogenecrackbasement.Generally,thehydrocarbondistributionischaracterizedbypatternsofgasinthedeeperreservoirs,oilandgasinthemiddlereservoirs,andoilintheshallo-werreservoirs.Oilandgasareenrichedinthestructuraltrapsandstructuralcombinationtraps.Faults,favorablesedimentaryfaciesofreservo
7、irsandpaleo-highsaretheprincipalfactorscontrollingtheoilandgasdistribution.TheSouthSumatraBasinhasgoodhydrocarbonaccumulationconditionsandfavorableexplorationpotential.Faultedslopessurroundingthesourcekitchens,paleo-highsaretheadvantageousexplorationareas.Inaddition,thest
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