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1、SooletvofPetroleumEndneers!SPE28579UnderstandingCavityWellPerformancemU.u.R~v.VmIpn,“u,3,R“.-.SKalcn,.”.--,anti----~:w,Paul,AdvancedResourcesIntl.Inc.SPEMembersCopyright19S4,SocietyofPetroleumEngineers,Inc.ThispaperwaspreparedIorpresentationattheSPE69thAnnualTechnicalConferenceandExhibitionhel

2、dinNewOrleans,LA,U.S.A.,25-2SSeptember1994.ThispaperwasselectedforpresentationbyanSPEPrcgramCommitteefollowingreviewofinformationcontainedinanabstractsubmittedbytheauthor(s).Contentsofthepaper,aspresented,havenotbeenreviewedbytheSocietyofPetrolaumErrgineerssndaresubjecttocorrectionbytheauthor(

3、s).Thematerisl,aspresented,do%anotnecessarilyreflectanypositionoftheWIetyofPetroleumEngineers,itso~!cers,ormembers,PeperspresentedatSPEmeetingsaresubjecttopublicationresiewbyEditorialCommitteesoftheSocietyofPetroleumEngineers.Permissiontocopyisraatrictsdtoanabstractofnotmorethan300words.Illust

4、rationsmaynotbempied.Theabstractshou!dcontainconspicuousacknowledgmentofwhereandbywhomthepaperispresented.WriteLibrarian,SPE,P.0,SoxS33S36,fllchardeen,TX750S3-3636,U.S.A.Telex,163245SPEUT.ABSTRACTcavitation.(FurtherdiscussionofvarioustypesofcavitycompletiontechniquescanbefoundinLoganl.)Open-ho

5、lecavitycompletionsprovidesignificantimprovementingasproductionfromtheFruitlandcoalThemostsuccessfulopen-holecompletionshaveplayinthenorthernSanJuanbasin.Wherereservoirbeenachievedinanorthwest-trending“fairway”throughpropertiesarefavorableforcavitation,suchasinthethenorth-centralregionofthebas

6、in2’s.Fairwaycavitybasin’s“fairway”area,gasproductionratesfromwellscontributemorethan76percent(1.2Bcfd)ofthecavitatedwellsgenerallyexceedproductionfromwellstotalcoalseamgasproducedfromthebasin,andcompletedusinghydraulicstimulationtechniques,oftengenerallyoutperformwellscompletedby“conventional

7、”byafactorof3to10times.Analysisofregionalhydraulicfracturing.However,notallopen-holecavitygeologictrendsandasimulation-basedanalysisofcavitycompletionsaresuccessful,eitherinthemechanicalorwellperformancewereusedtobetterunderstandtheprod