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时间:2020-01-14
《导管架Ф508mm套管回接技术在油田开发中的应用.pdf》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、第32卷第5期石油钻采工艺V0l-32No.52010年9月l()ILDRILLING&PRODUCTIONTECHN0LOGYSep.2010文章编号:1000—7393(2010)05~0028—04导管架0508mm套管回接技术在油田开发中的应用顾纯巍黄熠段泽辉郭永宾(中海石油(中国)有限公司湛江分公司,广东湛江524057)摘要:导管架回接完井技术是在预钻井作业完毕后,安置导管架并安装上部组块,实现套管回接,建立水下至地面的流体通道后转入完井生产作业。为了节约钻机资源,海上某油田进行多次调研,最终实现导管架回接完井作业。导管架回接作业的最外层为0508m
2、m套管,回接作业包括连接、安装扶正器、对孔、对井口、回接锁紧等几项工序,并最终通过试压验证回接的可靠性,回接作业中需要考虑井口密封及承受栽荷方面的影响,以便满足长时间生产的需求。该油田通过对管串的受力分析及现场切割等工艺,实现了20余口井的回接,为顺利投产奠定了基础。在回接过程中,管串受导管架安装精度影响较为明显,需要在后续油田作业中加以控制。关键词:导管架;半潜式钻井平台;套管回接;扶正器;导向孔中图分类号:TE931文献标识码:A0508mmcasingtiebacktechnologyonjacketinoilfielddevelopmentGUChunw
3、ei,HUANGYi,DUANZehui,GUOY0ngbin(CNOOCLta(-ZhanjiangBranch,Zhanjiang524057,China)Abstract:Asthedrillingdevelopmentgrowingfastinrecentyear,Theoperatingplanofsemi--submersibledrillingplatformpre-drillingandthenfixingjacket&topsidefortiebackcompletionjobisadoptedtosavedrillingrigresource
4、anddrillingcostinpartofseaareawhichisbaseonmeetingtherequirementofputtingintoproduction.Forcasingtiebackandbuildingupfluidchannelbeforecompletionjob.theplanisfixingjacket&topsideinashort·termafterpre—drillingjobisaccomplishedsuccessfully.Baseontheideaofsavingdrillingrigresource,wehad
5、finallyfinishedtiebackcompletionjobthroughmanyinvestigationandresearchinWenchangoilfields.Theouterlayerofjackettiebackjobis0508mmcasing.Theprocedureoftiebackjobincludingjoiningandfixingcentralizer,bore,wellhead,lockingtiebackandSOon.Pressuretestshouldbedoneforprovingthetiebackjobissu
6、ccessfu1.Itshouldbeconsideredthattheefectofwellheadsealandloadcarryingabilitycanmeettheneedsoflongproduction.BymeansoftheloadanalysisofcasingstringsandfieldcutingtechnologyinWenchangoilfields,wehadmadeanachievementofmorethan20wellstiebackjob.Itsettledthebasebeforeputingintoproduction
7、.Theaccuracyrateofjacketinstallationhaveefectoncasingstringsobviously,itshouldbetightlycontrolledinthefollow—upoilfieldjob.Keywords:jacket;semi—submersibledrillingplatform;casingtieback;centralizer;guidinghole随着钻井开发的快速发展,为了更好地解放钻井期间钻机资源及回接完井期间的钻井资源,进而机资源,部分海域在能够满足投产需要的基础上,采大幅度地节约钻井成本
8、,文中将主要描述0508
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