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ID:37381897
大小:2.50 MB
页数:7页
时间:2019-05-22
《红车断裂带及其周缘地层水特征与油气的关系》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第35卷第4期新疆石油地质Vo1.35.No.42014年8月XINJIANGPETROLEUMGEOLOGYAug.2014红车断裂带及其周缘地层水特征与油气的关系徐正建,刘洛夫,吴康军,肖飞,周长啸(中国石油大学a.油气资源与探测国家重点实验室;b.盆地与油藏研究中心,北京102249)摘要:以地层水相关参数为基础,结合油气藏空间分布特征,探讨了红车断裂带及其周缘地层水化学特征与油气聚集和保存的关系。新近系沙湾组和下侏罗统八道湾组地层水以CaC1型为主,下自垩统清水河组、上侏罗统齐古组和下侏罗统三工河组以NaHCO,型为主;沙湾组地层水矿化度最
2、高,清水河组次之,三工河组最低;三工河组的钠氯系数、碳酸盐平衡系数及脱硫系数最高,齐古组和清水河组次之;沙湾组的钙镁系数和变质系数最高,清水河组和八道湾组次之。综合分析表明,八道湾组地层封闭性最好,沙湾组和清水河组次之,齐古组和三工河组较差。清水河组地层封闭性以中部地区最好,齐古组以北部地区最好,八道湾组以南部地区最好。地层水化学特征指示的地层封闭性与油气藏空间分布特征十分吻合,对油气勘探具有重要指导意义。关键词:准噶尔盆地;红车断裂带;地层水特征;油气聚集;油气保存文章编号:1001—3873(2014)04—0418—07中图分类号:TEl11
3、;TE124.2文献标识码:ATheFormationWaterCharacteristicsandTheirRelationshipwithHydrocarboninHongshanzui-ChepaiziFaultBeltandItsSurroundingAreas,JunggarBasinXUZhengjian,LIULuofu,WUKangjun,XIAOFei,ZHOUChangxiao(ChinaUniversityofPetroleum,a.StateKeyLaboratoryofPetroleumResourcesandProspe
4、cting,b.BasinandReservoirResearchCenter,Beijing102249,China)Abstract:Basedontherelatedparametersofformationwater,combinedwiththespatialdistributionofhydrocarbonreservoirs,thispaperdiscussedtherelationshipbetweenthechemicalcharacteristicsofformationwaterandthehydrocarbonaccumul
5、ationandpreservationinHongshanzui—Chepaizifaultbeltanditssurroundingareas.Inprofile,theformationwatertypesinNeogeneShawanformationandLowerJu—rassicBadaowanformationaredominatedbyCaClz,whileinLowerCretaceousQingshuiheformation,UpperJurassicQiguformationandLowerJurassicSangonghe
6、formationtheyaredominatedbyNaHCO3.Thetotaldissolvedsolid(TDS)orsalinityofformationwaterinShawanformationisthehighest,theTDSinQingshuiheformationislower,andtheTDSinSangongheformationisthelowest.FortheSodium—Chlo—rinecoeficient,carbonateequilibriumcoeficientandde-sulfuricacidcoe
7、ficient,Sangongheformationisthehighest,andQiguformationandQingshuiheformationarelower.FortheCalcium—MagnesiumcoeficientandMetamorphiccoeficient,Shawanformationisthehighest,QingshuiheformationandBadaowanformationarelower.ThecomprehensiveanalysesshowthatthesealingpropertyofBadao
8、wanforma—tionisthebest,andthoseofShawanformationandQingshuihe
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