TU cn 分支井技术

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1、分支井钻井技术MultilateralSystemsPractical,SafeandCost-effectiveTechnology涂学翔北京东三环中路7号北京财富中心A座1008室Tel:86-10-58280500-630/58280630Fax:86-10-65303357HP:13901158332©2004Weatherford.Allrightsreserved.1IndustryIssues安全,成本和环保问题•Improvingrecoveryinexistingfields•Controllingcostsinsomeoftheworld’smostexpensiveb

2、asins•EliminatingunnecessaryrisksregardingQHSEissues©2004Weatherford.Allrightsreserved.2TheValueOurSystemsProvide为什么?ReducedCost总成本ReducedSurfaceFootprint地面Laterals:20-40%costoforiginalwellEnvironmentallysensitiveareasOneMultilateralcanreplace:Minimizesizeandnumberofplatforms•2-4horizontalwellsMin

3、imizesurfaceinfrastructures:•4-8verticalwells•Roads•PipelinesReduceequipmentrequirements:•Welllocations•Wellheads•Casingandtubing•Fieldgatheringlines•ArtificialliftequipmentImprovedProductivity产量ExploitmultipletargetsImprovedReserves改善油藏DevelopmarginaltargetsMaximizerecoveryinlowtomediumpermeabili

4、tyreservoirsMaximizereservoirexposureTexasA&MUniversitystudyshowsmultilateralOptimizedrainagearchitecturewellsmayincreaserevenuesoververticalwellsbyDocumentedproductionincreasesuptonearly2.3times20timesthatofverticalwellsMaximizecontactwithfracturesIncreasesweepefficiencyandpressurecontrolthrough“

5、linedrive”waterflooding©2004Weatherford.Allrightsreserved.3分支井钻井、完井分支井钻井、完井分支井主要应用于以下几方面：∑多个目的层∑增加单井产量,提高综合开发效益∑多种泄油模式∑多层油藏∑尺寸受限制的油藏∑处理油藏的地质问题∑限制水和气的产出∑注入井©2004Weatherford.Allrightsreserved.4MultilateralApplicationOverview应用范围NaturallyFracturedLaminated薄板油层AtticOil边际油藏裂缝油藏StructuralCompartmentsLay

6、ered多层油层Components多构造间隔性©2004Weatherford.Allrightsreserved.5TheAnswer:简单,低成本,低风险Weatherford’sreliable,practicalmultilateraltechnologies•Weleverageourstrengthasapremiermillingcompanytoprovidesimple,lowcost,&lowriskmilling-basedmultilateralsystems:–Level1–SelectiveRe-entrySystem(SRS™)–Level2–Selecti

7、veRe-entrySystem(SRS™)–Level4–StarBurst™&MillThru™Systems•Wehaveaproventrackrecordofover7,000casingexits&400multilateralsbasedonourmillingtechnology©2004Weatherford.Allrightsreserved.6威德福分支井技术应用•威德福公司已在全球范围内完成了40