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时间:2019-05-15
《崖城131A16井表层“一开双眼”定向钻井技术》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34卷增刊石油钻采工艺Vo1.34Sup.2012年9月0ILDRILLING&PR0DUCTIONTECHN0L0GYSept.2012文章编号:1000—7393(2012)SO一0009—03崖城13.1.A16井表层“一开双眼"定向钻井技术赵学战管申郭希玺方满宗鹿传世(1.中海油能源发展股份有限公司监督监理湛江分公司,广东湛江5240572.中海石油(中国)有限公司湛江分公司,广东湛江524057)引用格式:赵学战,管中,郭希玺,等.崖城13.1.A16井表层“一开双眼”定向钻井技术[J].石油钻采工艺,2012,34(S0):9-11.摘要
2、:为解决海洋表层地层松软、易被冲刷,定向钻进、特别是扩眼钻进困难,易产生新井眼、与邻井相碰的钻井工程难题,提出了一种先钻小尺寸领眼,再用双扩眼器“一开双眼”定向扩眼钻进表层,然后下入表层双尺寸复合套管的海洋表层钻井作业方式。结合随钻测量仪器MWD和陀螺工具,南海莺歌海域崖城13—1一A16井表层先用0444.5mm钻具定向钻领眼,再用0558.8mm和711.2mm扩眼器将领眼定向扩眼到O558.8mm和O7l1.2nlin井眼,随后下入0473.075mm和0660.4mm复合导管并固井,保障了疏松表层造斜效果,防止了扩眼作业中扩眼钻具对0444.5
3、mm井眼造斜效果的不利影响,解决了丛式井表层防碰难题,同时保证了井口稳定性。实践证明,“一开双眼定向钻井技术”在海洋疏松表层丛式井防碰钻井作业中能够较好地解决表层建井中遇到的难题,对后续类似井的作业具有一定的借鉴意义和推广价值。关键词:防碰钻进;领眼钻进;扩眼钻进;MWD;陀螺中图分类号:TE249文献标识码:A”TwinholeDrilledatFirstSpudding"directionaldrillingtechnologyof13--1-A16wellsurfaceinYachengZHAOXuezhan,GUANShen,GU0Xixi,F
4、ANGManz0ng2,LUChuanshi(1.CNOOCEnergyTechnology&Services—Supervision&TechnologyCo.,Zhanjiang524057,China;2.ZhanjiangBranchofChinaNationalOffshoreOilfieldCorporationLimited,Zhanjiang524057,China)Abstract:Inordertodealwiththedificultycausedbythesoftseasurfacelayerandeasyflushingawa
5、ywhiledirectionaldrill—ing,especiallywellholeenlargingdrilling,andinordertofixthedrillingengineeringproblemthatanewwellholeeasilygeneratesandcollideswiththeadjacentwell,thepaperproposesakindofseasurfacedrillingoperationmethodsofwhichfirstlyapilotholewithsmallsizeisdrilled,second
6、lythedirectionalenlarginghole”TwinholeDriliedatFirstSpudding”byusingdoubleenlargingholemachineisdrilledintosurface,andthenthesurfacedoublesizecompoundcasingpipeissetdown.UtilizingthecompanieddrillingmeasuringapparatusMWDandgyrotool,inthesurfaceofthe13-1一A16wellsituatedinYacheng,
7、YinggeseaareaofSouthChinaSea,theconstructorsfirstlydrillthepilotholedirectionallybyusing0444.5mmdrillingapparatus,secondly0558.8mmandthenO711.2himenlargingholereamertoenlargethepilotholeto0558.8mmandO711.2mm,subsequentl~theysetdownthecompoundcasingpilewith0473.075mmand0660.4mn-l
8、tofixthewell,thusthedeflectionefectontheloosesu
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