finite element analysis of coiled tubing forces盘管力有限元分析.pdf

SPE89502

FiniteElementAnalysisofCoiledTubingForces

KennethRNewman/CTES.L.P.

Copyright2004,SocietyofPetroleumEngineersInc.unknowndisplacementsofthepipeinthewellbore

ThispaperwaspreparedforpresentationattheSPE/ICoTACoiledTubingConferenceandsimultaneously.

ExhibitionheldinHouston,Texas,U.S.A.,23–24March2004.

Oneofthebiggestchallengesforanystiff-stringmodelis

ThispaperwasselectedforpresentationbyanSPEProgramCommitteefollowingreviewofknowingataspecificpointifthepipeistouchingthewallof

informationcontainedinaproposalsubmittedbytheauthor(s).Contentsofthepaper,as

presented,havenotbeenreviewedbytheSocietyofPetroleumEngineersandaresubjecttothewellboreornot.Ifnot,thepipeisfreetomove.Ifitis

correctionbytheauthor(s).Thematerial,aspresented,doesnotnecessarilyreflectany

positionoftheSocietyofPetroleumEngineers,itsofficers,ormembers.Paperspresentedattouching,somewallcontactforce(WCF)isbeingappliedto

SPEmeetingsaresubjecttopublicationreviewbyEditorialCommitteesoftheSocietyofthepipe.Itischallengingforanynumericaltechniquewhen

PetroleumEngineers.Electronicreproduction,distribution,orstorageofanypartofthispaper

forcommercialpurposeswithoutthewrittenconsentoftheSocietyofPetroleumEngineersisanysuddenchangeorstepfunctionexists.Thisispossiblythe

prohibited.Permissiontoreproduceinprintisrestrictedtoaproposalofn