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时间:2020-06-04
《松辽盆地北部青一段含油泥页岩储集特征浅析.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、第26卷第5期岩性油气藏Vo1.26No.52014年1O月UITH0L0GICRESERVOIRS0et.20l4文章编号:1673—8926(2014)05—0064—05松辽盆地北部青一段含油泥页岩储集特征浅析柳波,王蕃,冉清昌1,37李梅,戴春雷,王猛(1.东北石油大学非常规油气成藏与开发省部共建国家重点实验室培育基地,黑龙江大庆163318;2.大庆钻探工程公司测井公司,黑龙江大庆163412;3.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163318)摘要:储集性能的好坏是影响泥页岩含油气性的关键因素。利用
2、岩心观察、薄片鉴定、扫描电镜及等温吸附等手段,对松辽盆地北部青一段含油泥页岩进行了岩石学特征和储集特征研究,对其储集物性进行了初步评价。结果表明,青一段泥页岩储层的岩石类型主要包括舍粉砂泥岩、粉砂质泥岩、含灰质泥岩及粉砂岩等,其中粉砂质泥岩、含灰质泥岩及粉砂岩脆性矿物含量相对较高,且储集空间类型多样,与微裂缝构成了“水平+垂直的裂缝网络系统”。薄层粉砂岩夹层或纹层的粒间溶蚀微孔较为发育,溶蚀微孔可达微米级。青一段泥页岩综合评价为特低孔、特低渗储层,其中又以粉砂质泥岩、合灰质泥岩及炭质粉砂岩储集物性较好.可望在页岩油气勘探中获得突破
3、。关键词:页岩油气;储集特征;致密储层;纳米孔隙;松辽盆地北部中图分类号:TE122.1文献标志码:ACharacteristicsofshalereservoirofthefirstmemberofQingshankouFormationinnorthernSongliaoBasinLIUBo,WANGFan2,RANQingchang,LIMei,DAIChunlei,WANGMeng(1.AccumulationandDevelopmentofUnconventional0ilandGas.StateKeyLaborator
4、yCultivationBaseJointly—constructedbyHeilongjiangProvinceandtheMinistryofScienceandTechnology,NortheastPetroleumUniversity,Daqing163318,Heilongjiang,China;2.Wellloggingcompany,DaqingDrillingandExplorationEngineeringCorporation,Daqing163412,Heilongjiang,China;3.Researc
5、hInstituteofExplorationandDevelopment,PetroChinaDaqingOilfieldCompanyLtd.,Daqing163318,Heilongjiang,China)Abstract:Thereservoirqualityisthekeyfactorforinfluencingtheenrichmentofshaleoilandgas.Throughcoreobservation,thinsectionidentification,scanningelectronicmicroscop
6、e,isothermaladsorptionandothermeans,thispaperstudiedthepetrologyandreservoircharacteristicsofoilshaleofthefirstmemberofQingshankouFormationinnorthernSongliaoBasin.Theresultshowsthattherocktypesofreservoirincludewith—siltmudstone,siltymudstone。limemudstoneandsihstone.T
7、hesiltymudstone,limemudstoneandsihstonearewithhighercontentsoffragilemineral,anddevelopedvarioustypesofreservoirspacewhichconstitutesacomplexeslevelandverticalfracturenet-system.Intergranulardissolvedporesaremoredevelopedinthinsiltstonelayersorlaminate,andtheirporosit
8、ycanreachmicronleve1.ThereservoirofthefirstmemberofQingshankouFormationbelongstoultra—lowporosityandultra-lowpermeabilityres
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