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《松辽盆地北部中浅层成岩作用及其对储层质量的影响.pdf》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、矿物岩石地球化学通报·专题研究·BulletinofMineralogy,PetrologyandGeochemistryVo1.29No.3,July2010松辽盆地北部中浅层成岩作用及其对储层质量的影响孟元林,王建伟,吴河勇,王成,李亚光2,张安达,修洪文,姜文亚3,郭日鑫41.东北石油大学,黑龙江大庆163318;2.中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712;3.中国石油大港油田勘探开发研究中心,天津300280;4.中国石油大庆油田有限责任公司采油三厂,黑龙江大庆16311
2、3摘要:应用流体包裹体均一温度、镜质组反射率、孢粉颜色指数、色谱一质谱、热解分析、有机酸测定、X射线衍射、镜下鉴定、扫描电镜、电子探针、铸体薄片鉴定等资料,研究了松辽盆地北部中浅层的成岩作用和孔隙演化。结果表明,该盆地中浅层碎屑岩成岩作用可划分为早成岩A期、早成岩B期、中成岩A。亚期、中成岩Az亚期和中成岩B期两个阶段五个(亚)期;只有泉三、四段底部地层进入中成岩B期,整个中浅层的成岩作用并不太强;成岩作用具有从西到东逐渐增强的趋势。中浅层的储层以原生孔隙为主,随埋深增大和成岩作用增强,次生孔隙所占的比例增
3、加,中成岩阶段A期可占总孔隙的24.8。关键词:储层;成岩作用;机械压实;浊沸石;同位素;次生孔隙;中浅层;松辽盆地中图分类号:P618.13文献标识码:A文章编号:1007—2802(2010)03—0217—10TheDiagenesisandItsEffectsOilReserviorQualityofMiddle-shallowReservoirsintheNorthernSongliaoBasinMENGYuan-lin,wANGJian-wei,wuHe—yon,wANGChen,LIYa-gu
4、an,zHANGAda2,XIuHong-wen,JIANGWen-ya3,GUORi-xin41.NortheastPetroleumUniversity,Daqing163318,China;2.eExploration&DevelopmentInstituteofDaqingOilf~ldLtd.Company,Daqing163712,China;3.ScientificandTechnicalInformationDivision,PetroChinaDagango“fieldCompany,Ti
5、anjin300280,China;4.No.3PetroleumProductionSubcompany,DaqingOiZFieldCompanyLtd.,PetroChina,Daqing163113,ChinaAbstract:Thediagenesisandporeevolutionofmiddle-shallowreservoirsinthenorthernSongliaoBasinwerestudiedbyusingthedataofhomogenizationtemperaturesoffl
6、uidinclusions,R。,TAI,GC-MS,Rock-Eval,organicacids,XRD,thinsection,SEM,EPMA,blueepoxyresin-impregnatedthinsections.TheresultsshowedthatthediagenesisofclasticrOCkSinthemiddle-shallowreservoirsofthenorthernSongliaoBasinaredividedintopemodAofearlydia—geneticst
7、age,periodBofearlydiageneticstage,sub-periodAlofmiddlediageneticstage,sub-periodAzofmiddledi—ageneticstage,andperiodBofmiddlediageneticstage.Theirbottomdepthsare500m,1000m,1400m,2350mand3000mrespectively;onlythereservoirsinthebottomofMember3andMember4ofQua
8、ntouFormationinthenorthernSongliaoBasinarelocatedinthestageofmiddlediagenesisB,sothediagenesisofthewholemiddle-shal-lowreservoirsarenotverystrong.Theprimaryporosityispredominantinthemiddle-shallowhorizons,but
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