注汽工艺管柱对热采井套损的影响

!#XXX(())(),,,;,,,,,,2136%,2021%,,,,250350,,,;,,,;,,,,,,,,+,,,,,1111413mm(41/2),62mm11413mm,3117mm,17718mm(7)N80,17718mm16118mm,30mm:200m,20m,20m,2115304560,;Kxx0100101006010086010101060112,;ANSYS62CHINAPETROLEUMMACHINERY2004322XXX,,1963,1986,1997(),,:(257000):[phone](:2003-09-15;:2003-11-28),(1)(01060108),(010086)[1],,,,,,14515,,1,,,,,(2)2,2KxxMises:200m,,8m17718mm,8105mm,3111mm,2,Mises376MPa,Mises111MPa,265MPa,,,(3),,,,,3434,,,1m,,,,(4),,,:722004322:350,17MPa,0,m,585Mises6Mises78,,545MPa,N80552MPa,,,1m,,,,,:17120MPa,350300250,0MPa,,,,,,11Mises40mm,350,Mises773MPa-885MPa(9a,b)9Mises(N80552MPa)Mises650670MPa822004322,11151123,21,,Mises,17MPa,350300250,650542421MPa,100,229MPa,3512%,101031,,Mises,350,01217MPa,712683650MPa,62MPa,817%,11,,,,1111,,2,,,,[2],(12),1213;2;4;5;6;7,,,,,,,21,,31,,,,139,80,5%,,1,,11:,1999:354357211:,2001:519520()922004322:field,rodandtubingwear,cause,mechanicalanalysisLuQinghe(No.3OilProductionPlantofZhongyuanOilfieldCompany,ShenxianCounty,ShandongProvince),WanJihe,ChengGeqi,etal.PowersavingofwaterinjectionstationbyPCPtech2nology.CPM,2004,32(2):1516Toreducethepowerconsumptionandlowerthecostofthewaterinjection,aPCPtechnology,i.e.pump-control-pumptechnology,isadopted.ThePCPsystemiscomprisedofawaterinjectionpump,aliquidchargepump,variable-frequencyspeedregu2latingsystem,computer-aidedcontrolsystem,in2strumentmonitoringsystem,lubricatingsystemandcoolingsystem.TheworkingprincipleofthePCPsys2temisexpounded,andfielduseofthesystemiscom2mented.Practiceshowsthat,aftertheuseofthePCPsystem,theproductivityoftheoilwellisincreasedre2markablyandpowerconsumptionisobviouslyreduced.Keywords:waterinjectionstation,liquidchargepump,variable-frequencyregulatingsystem,powersavingZhuXiaohua(SouthwestPetroleumInstitute,Chengdu),TongHua,LiuQingyou,etal.Modelforcasingfailurefuzzyintegratedevaluationbasedonfaulttree.CPM,2004,32(2):1719Accordingtoaqualitativeanalysisofcasingfaulttree,andbytakingcasingfailureasthetopevent,47differentessentialeventsarefoundout,andeacheventcanbeequaledtoBooleanequation.Combinedwiththeoilfieldconditions,theessentialeventwithBooleancharacteristicareextendedtomulti-levelfuzzyset.Thenthecasingfailurefuzzyintegratedevaluationana2lyticalmodelbasedonfaulttreeisestablished.Inthemodel,whiletheextendedessentialeventsoccuratvariouslevels,thelevelatwhichthetopeventoccursmustbedeterminedbytheoreticanalytsisandstatisti2calanalysisofoilfielddataandexperimentaldata.Themodelprovidesanewwaytocasingfailureanalysis.Keywords:casingfailure,faulttree,fuzzyinte2gratedevaluation,failureanalysis,essentialeventWangDingya(BaojiOilfieldMachineryCo.,Ltd,BaojiCity,ShaanxiProvince),GongHuijuan,LuanSu,etal.DesignofModelJC-70DBsingleshaftdrawworks.CPM,2004,32(2):2022ModelJC-70DBACvariable-frequencygear-drivensingleshaftdrawworksisdevelopedtomeettheneedofthemoderndrillingtechnology.ThenewdrawworksisdrivenbytwoACvariable-frequencyelectricmotor,anditsspeedcanberegulatedinarangeof0140Hzwithamaxof2800r/min.Thedraw2worksadoptsadvancedACvariable-frequencydevice(VFD)controlsystemandtouchscreendisplayandto2talnumericalcontrol,thereforeitishighlyautomaticandintelligent,andhashighadaptability.Keywords:ACvarible-frequency,gear-driv2en,singleshaftdrawworks,structuraldesignZhangGuangwei(CollegeofMechanicalEngi2neering,XianShiyouUniversity,Xian).Designandcalculationofdownholeclose-loopadjustablestabilizers.CPM,2004,32(2):2325,41Thedesignfeatureandoperatingprincipleofthedownholeclose-loopadjustablestabilizerarede2scribed.Thefactorsinfluencingtheperformanceofthestabilizerareanalyzed,includingthedrillfluiddrivingforce,pistonsealresistanceandtheelasticityofthere2setspring.Staticsanalysisoftheadjustablestabilizingblockismade,andtheequationforcalculatingthedrillfluiddrivingforceneededforkeepingstablebalanceofthestabilizingblockisderived,providingatheoreticalbasisforthedesignofsimilardownholetools.Fieldtestshowsthatthenewly-designeddownholeclose-loopadjustablestabilizerhasreasonablestructure,powerfulfunction,andcanbeadjustedautomaticallyandsteplessly,thereforeitisoneofthereliabletoolsfordrillingextended-reachwells.Keywords:adjustablestabilizer,drilling,struc2turaldesign,forceanalysisZhangYi(CollegeofPetroleumEngineering,U2niversityofPetroleum,DongyingCity,ShandongProvince),ZhaiYong,JiangZeju,etal.Influenceofsteaminjectiontechnologystringoncasingfailureinthermalrecoverywells,CPM,2004,32(2):2629ThecasingfailurewellsinthethermalrecoveryblocksinShengliOilfieldincreaseyearbyyearbecauseofthemultiplecyclicsteamstimulation.Theinfluenceoftheinsulatedtubingswithvariousinsulationperfor2mancesonthedistributionofthetemperatureandther2malstressofthecasinlisanalyzed,andtheresultshowsthatthecasingtemperatureandthermalstresscanbereducedeffectivelybyimprovingtheinsulationperformanceoftheinsulatedtubing.Thetempera2tureandthermalstressonthecasingatthecouplingareaoftheinsulatedtubingandnearthepackersarecalculated,anditisfoundthatthetemperatureandthermalstressofthecasingatthesetwoareasarehigh2erthanthemeanvaluesofthatofthewholecasingstring,thereforethispar