分支水平井技术在伊拉克HFY油田的应用-论文.pdf

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1、第36卷第2期石油钻采工艺V01．36No．22014年3月OILDRILLING&PRODUCTIONTECHNOLOGYMareh2014文章编号：1000—7393(2014)02—0038—04doi：10．13639／j．odpt．2014．02．009分支水平井技术在伊拉克HFY油田的应用许岱文梅景斌郑传奎任智基邹科(1．中国石油伊拉克地区公司，迪拜500486)引用格式：许岱文，梅景斌，郑传奎，等．分支水平井技术在伊拉克HFY油田的应用[J]．石油钻采工艺，2014，36(2)：38—41．摘要：通过对伊拉

2、克HFY油田Mishrif储层特点及钴采工程的研究，确定了采用分支井双分支裸眼悬空侧钻并裸眼下筛管的钻完井方式；通过对分支连接井段的井壁稳定、主、分支井眼轨道及施工进行优化设计及作业，形成了HFY油田分支井裸眼悬空侧钻关键技术，降低了主、分支井眼钻井的难度与风险，成功完成4口分支水平井的钻井第1口分支井生产测试获得了日产原油1638m，与单支水平井初产相比增长了2倍。分支水平井在HFY油田的应用表明，根据油田条件确定合适的分支井钻完井方式是油田优化钻井、优化开发方式、提高综合开发效益的重要途径，Mishrif储层分支井钻

3、井的成功为中东地区大型碳酸盐储层分支井钻井积累了经验，也为油田低成本开发开拓了思路。关键词：双分支水平井；裸眼悬空侧钻；井眼轨迹控制；分支井连接；井壁稳定中图分类号：TE243文献标识码：AApplicationofbranchhorizontalwelltechnologyinHFYOilfieldofIraqXUDaiwen，MEIJingbin，ZHENGChuankui，RENZhiji，Z0UKe(1．PetroChinaHalfayaFZ-LLC，Dubai500486，UAE)Abstract：Throug

4、hresearchintothecharacteristicsofMishrifReservoirinIraqiHFYOilfieldandthedrillingandproductionengineering，wedeterminedthatthewellsbedrilledandcompletedbysuspendedsidetrackinginopenholeindualbranchwellsandbyrunningscreentubesinopenhole；bystabilizingthesidewallofth

5、ebranchconnectingholesectionsandoptimizingthedesignanddrill—ingofthemainholeandbranchholetrajectories，wehavedevelopedthekeytechnologyforsuspendedsidetrackingofbranchopenholeinHFYOilfield，reducedthedifficultyandriskinthedrillingofthemainwellboreandbranches，andhave

6、succeededindrillingoffourbranchhorizontalwells．Oilproductiontestinthefirstbranchwellflowedatarateof1638mofoilperday,twotimesupcomparedwiththeinitialproductionofsinglehorizontalwel1．TheapplicationofbranchhorizontalwellsinHFYOilfieldshowsthattheproperdrill—ingandco

7、mpletingmannerforbranchwellsdeterminedinlinewithoilfieldconditionsisacriticalapproachtooptimizingwelldrillinganddevelopmentoftheoilfieldandimprovingtheoveralldevelopmentbenefits．TheSUCCESSinthedrillingofbranchwellstoMishrifReservoirprovidesexperiencesforthedrilli

8、ngofbranchwellsintolargecarbonatereservoirsintheMiddleEastareasandhasexpandedwaysforlowcostdevelopmentoftheoilfields．Keywords：same—sidedualbranchhorizontalwell