哈德油田水平井固井工艺技术

22420057DRILLINGFLUID&COMPLETIONFLUIDVol.22No.4Jul12005:100125620(2005)04200782031122(1.,;2.,)(5100m)5000m,,,,,;,G+(10036)LANDY806L,G,LANDY806L,1.351.46g/cm3,,:TE256.5:A11.1,,,,4150m,,,,2050m341504300m,4300m,5100m,0.62.1m1.2311.1mm5001000m,244.5mm;215.9mm,,,,55005800m,5000m,300500m2:,;,;177.8mm139.7mm139.7mm177.8mm3500m,139.7mmAC,139.7mmA(5150m)3700m,1500m,3500m,2(1),,,,,(2),,,,(3),,,,,,(4):,,1961,1988,:;062552;[phone]/[phone]©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(5),,,(6)(7),3500m,,33.13.1.10.23/100m,110,G+(10036)LANDY806L,LANDY806L4:LANDY806LLANDY906LLANDY606LLANDY19L;LANDY806L,,100,;100,LANDY606L1,G+36%+(5.0%7.0%)LANDY806L+2.5%LANDY906L+0.5%LANDY606L+0.2%LANDY19L1,40Bc100Bc,,,,,,,3%5%,,,,,,80,45,2hAPI,0.05g/cm31T/p/MPag/cm3FLmLt40Bcmint100BcminHD4246H95501.8850262271HD4232H90501.8648291302HD4267H90501.8660278290HD4266H95501.8855307322HD4243H95501.8760330:0,3.1.2G,LANDY806L,1.351.46g/cm3:,,24h25%40%,15%30%,22T/p/MPag/cm3cmFLmLtminHD4246H70301.3523.085350HD4232H65301.3523.580312HD4267H70301.4623.090290HD4266H70351.4523.574378HD4243H65351.4524.076371:0,3.2,,,()400m150250m,,10min79224:©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,,,,,,,,3.3.2:139.7mm+139.7mm+139.7mm1++++139.7mm++139.7mm++139.7mm++139.7mm++177.8mm++177.8mm(,2),,11::;:,;;,3.3.3,,,,,,3.3.4,;,,,;,,,44232H4.1244.5mm505.70m,215.9mm5180m,,4840m,5505m,90.3,,300m,1.23g/cm3,139.7mm+139.7mm+177.8mm5184.613800m,35000m220mm,5502.65m124.2:20m3,4m3,15m31.80g/cm3,28m31.86g/cm3,2m3(),85m3,17MPa,,,24h:4m3,74m31.35g/cm3,2m3(),66m3,21MPa,,5:;;;,;,,,[1],,,..[2],,,..(2005202225;HGF=054L5;)8020057©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(sandreservoir),cuttingstransportationandlubricationinlargeanglesectionandhorizontalsection,andreservoirprotectioninunconsolidatedsand,weread2dressed.,whichqualifiesthefluidtodrillwellsoftrueverticaldepthlessthan3000minJidongoilfield.Keywords:polysulfonatesilicofluoricdrillingfluid,horizontalwell,holecleaning,holestability,forma2tiondamage,JidongoilfieldFirstAuthorsAddress:NO.3DrillingEngineeringCompanyofCNPCHuabeiPetroleum,Renqiu,HebeiCementingtechnologyforgasstoragewellsinDagangoilfield.DFCF,2005,22(4):7477Authors:ZHAOFu2xiang,ZHOUJian,WANGSan2xi,ZHANGHai2taoandYAOWen2bangAbstract:Comparingwithconventionalgaswell,thelifeofgasstoragewellisrequiredtobelonger,whiletheworkconditionismorechallengingandtheformationprotectionisinhighlevel.Incementinggasstor2agewellsinDagangoilfield,characteristicsoflowformationpressurecoefficient,longcementingintervalexists.Forgaschannelingiseasytooccurincementslurry,itisdifficulttodesigngoodslurry.There2fore,labstudyoncementslurryandcorrespondingoperationpreparationweremade.Asaresult,double2densitytwo2stagecementslurrywasselected,andrelativemeasuresweretaken.Inthispaper,177.8mmcasingsinKu3211wellinDagangoilfieldwastakenasanexampletoillustratetheusingofthisfluidandthemeasures.Operationofthistechnologyin10wellsresultsinexcellentcementingqualityupto90%.Keywords:cementingjob,cementslurry,longintervalcementing,gasstoragewellFirstAuthorsAddress:DrillingTechnologyResearchInst.ofCNPCHuabeiPetroleum,Renqiu,HebeiCementingtechnologyforhorizontalwellsinHadeoilfield.DFCF,2005,22(4):7880Authors:LIJian2cheng,WUHong2bo,SUNJi2junandPENGXiao2gangAbstract:OilreservoirofHadeoilfieldfeaturesindeepburyingdepth(5100m)andthinpayzone(0.62.1m).Basedonsuchconditionsascomplexgeology,longopenholeaslongas5000m,largedeviationangle,holecollapse,longhorizontalsection,hightemperatureandgreatformationpressurecoefficientchangesetc.,relativemeasuresweretakentoprotectcasingandelongateoilwelllife.Itisdecidedthattheproductioncasingisfullytwo2stagecemented.Thefirststageisantypicalhigh2inclinationcementingoper2ationwiththecementslurrycomposedofGClasscement,silicatepowderandseriesofLANDY806Laddi2tives,andthesecondstageisanlongopenholeandsmallclearancecementingoperationwiththelightce2mentslurry(thedensityis1.351.46g/cm3)composedofGClasscemen