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时间:2019-01-12
《《水驱多层非均质砂岩油田压裂与套损关系》》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、2009年2月大庆石油地质与开发Feb.,2009第28卷第1期PetroleumGeologyandOilfieldDevelopmentinDaqingV01.28No.1文章编号:1000—3754(2009)01-0106-04水驱多层非均质砂岩油田压裂与套损关系白振国王秀娟。赵永胜兰玉波。(1.中国科学院研究生院,北京100049;2.大庆油田有限责任公司榆树林油田开发公司,黑龙江大庆1511003.大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712)摘要:为深入研究大庆油田套管损坏主要影响因素
2、,有效控制套管损坏持续增高趋势,文章从注水开发多层砂岩油田过程中套管损坏的现象人手,系统分析了大庆油田目前油水井套管损坏状况及分布特点。在此基础上,论述了压裂措施与高压注水基本原理的一致性,探讨了水力压裂与套管损坏的关系。通过实例分析,认为注水开发多层砂岩油田,高压注水是导致套损的核心因素。同时指出,在注水与压裂同时存在的条件下,压裂和高压注水一样与油田套管损坏关系密切,即压裂也是导致套管损坏不可忽视的因素之一,应引起足够重视。关键词:套管损坏;压裂;高压注水;裂缝;水驱油田中图分类号:TE357.14文献标识码
3、:ARELATIoNBETWEENFRACTURINGANDCASINGDAMAGEoFHETERoGENEoUSWATERFLooDINGMULTILAYERSANDSToNEOILFIELDBAIZheng.guo’,WANGXiu—juan。,ZHAOYong.sheng,LANYu.bo(1.GraduateUnwenity,ChineseAcademyofSciences,Beijing100049,China;2.YushulinOilfield。DaqingOilfieldCompanyLtd.,D
4、aqing151100,China;3.ExplorationandDevelopmentResearchInstituteofDaqingOilfieldCompanyLtd.,Daqing163712。China)Abstract:TostudymaininfluencefactorsofcasingdamageinDaqingOilfieldandeffectivelycontrolthecontinu—ouslyincreasingtrendofcasingdamage,currentsituationa
5、nddistributionfeatureofcasingdamageinDaqingOil—fieldisanalyzedsystematicallybystartingwithcasingdamageduringdevelopmentofwaterfloodingmuhilayersand—stoneoilfield.Onthisbasis,consistenceoffracturingstimulationandhighpressurewaterinjectionprincipleisil-lustrate
6、d,andrelationbetweenhydraulicfracturingandcasingdamageisdiscussed.Casestudyshowsthatfractu—ringandhighpressurewaterinjectionaretwokeyfactorscausingcasingdamageduringdevelopmentofwaterflood—ingmuhilayersandstoneoilfield.Itisconcludedthat,fordevelopmentofmuhila
7、yersandstoneoilfieldbywater-flooding,whenwaterinjectionandfracturingexistsimultaneously,fracturingiscloselyrelatedtocasingdamageashighpressurewaterinjection.Inotherwords,fracturingisalsooneoffactorsthatcannotbeignoredandcancausecasingdamage,whichshouldbepaidm
8、oreattention.Keywords:casingdamage;fracturing;highpressurewaterinjection;fracture;waterfloodingoilfield收稿日期:2008-05—21作者简介:白振国,男,1964年生,在读博士,高级工程师,从事油田开发管理工作。E—mail:baizhenguo@petrochina.
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