触变性水泥的评价方法及其应用

X刘崇建XX刘孝良()1触变性水泥的评价方法及其应用1天然气工业,2001;21(2):56~60触变性水泥是一种适用于破裂压力梯度较低的松散地层漏失层及挤水泥等注水泥作业的水泥浆体系,它对防止水泥浆凝固过程的气窜问题同样具有一定效果文章重点对触变性水泥浆的测量和评价方法进行了全面分析和深入的讨论,提出的水泥浆触变性有关模型同样适用于其它非胶凝性宾厄姆流体幂律流体的触变性评定文章还对触变性水泥浆的特点用途常规配方及国内外应用情况进行了较深入的介绍固井注水泥触变性水泥评价方法,,,,,,(1)1,,,1121.12,52:(1)2,(ocia)(adod),,(ociadod),,2(2)3(a),;(b),,(3),,,,,(4),,2.12,3,42#56#20013XXX19955:(637001):[phone]/0(94008)34(1),,,,,,,(2),,,,,(3):,240Pa,(4),,(5)15,1221.,,:E=CS(1):E,J/m3#s;C,s-1;S,Pa2,,(E1):E1=QS600S0CdS,E1:E1=QC6000Gp1CdC=12Gp1C2600(2),E2:E2=12Gp2C2600(3)E:E=E2-E1=12C2600(Gp2-Gp1)(4)E=12C600(S01-S02)(5),:E=C600S600n21+n2-n11+n1(6)(Gp1S01n1Gp2S02n2)C600S600,C600=1022s-1,S600C6002.,(1s-1),10s(1min)10min,S1S10,$S=S10-S110min,S10S1,,10min12,62#57#2123.(),(Simax)(Sis),Ci(Simax-Sis)(),:E=Ei2i=i1Ci(Cimax-Sis)(7):i=5.1110.22170.3340.65111022s-1162),,,:(1)(),,(Messenger,1980)0.05%~2.0%()1.4~2.5g/cm3(2)(CaSO4#12H2O,CSH-)(),,(C3A),/0(Kalousek,1973):3CaSO4#2H2O+3CaO#Al2O3H2O3CaO#Al2O3#3CaSO4#32H2O(),,,,,,,CSH-8%~12%(),C3A5%,,,,,,,,C3A,,,(3)Al2(SO4)3FeSO4,(Nelson,1983)C3A5%,,J,,2Al(OH)-4+3SO2-4+6Ca2++12OH-H2O3CaO#Al2O3#3CaSO4#32H2O,,,,,,,38e(4)172:()Fe3+,0.1%~3%(BWOC,ByWeightofCement,)CMCHECCMHEC,,#58#200130.3~1.5,50~300,0.1%~0.75%23%~60%,,Ca2+0.75%,,,:APIHBHECBB()BCFR-2()(100B0.25B2.0B46B0175),1.7Pa#s,10min,20min7.5~10.0Pa#s,2h,(5),18,92,5XcXdON,XcYd2~3,RcRdH:5¹-[(CH3)2CHO]2Ti[OC(CH3)=CHCOCH3]2;º-[(HO)2Ti(OCH(CH3)COO-)2][M+]2,,M+HNH4+;»-[(CH3)2CHO]2Ti[OCH2CH2N(CH2CH2OH)2]2,,182,APIHB(50B50)+17%+0.4%+0.4%+1.0%CMHEC+0.4%,192:H+30%+4%CMHEC+0.5%+0.5%+0.25%,RFC122LXT110,112(1)Purdy1112PurdyHartSpringer,Hart,Springer5,,,(2)ConocoARCOWebb,APIH,,1983,Conoco152192,,15,,,ARCOPermian1102,,,,,/0/0LXT,8,#59#212,,1986,AB6,1994~1995,1132181,0.07~0.18g/cm3;179;199344%76.2%1..:,19812...:,19873ClmentCC.Ascientificapproachtotheuseofthixotropiccement.JPT,March19794KirkseyJ,WarembourgP.Fieldtestsshowimprovedce-mentbonding.DrillingContractor,19795..:,19916ERIKBNELSON.WellCementing,ElservierAmsterdam-Oxford-NewYork-Tokyo,19907,..,1995;(3)8SonesRR,CarpenterRB.Nexlatex,expandingthixotropiccementssystemsimprovejobperformanceandreducecosts.SPE21010,19919,..:,199211BanfillPEG,SandersDC.Ontheviscometricexamina-tionofcementpastes.CementandConcreteResearch,1981;11(3)12HemphillRP,CrookRS.Thixotropiccementimprovessqueezejobs.WorldOil,198113StehleD,SabinsFetal.Conocostopsannulargasflowwithspecialcements.PetroleumEngineering,1985(2000-10-08))))21,,/,0/0,,,,/200102001620~23/0,,,ABB)#,,350,/0/0:oo#60#20013property;»itselectricproperty;and¼itsfluidpropertyanditsdistribution,etc.Theyarethegeologicalbasesofafinelogin-terpretationandevaluationofoilandgasreservoirwithlowre-sistivityandthedegreeoftheinfluenceofthesegeologicalfac-torsonvariouslogresponsesisthepetrophysicalbaseofevaluat-ingreservoirbyloggingdata.SUBJECTHEADINGS:Reservoir,Mineral,Resistivity,Low,Logresponse,Loginterpretation,RecoveryfactorHuJun(doctor)wasbornin1969.Nowheisengagedinteachingandresearchonthecomprehensiveinterpretationanddigitalprocessingofloggingdata.Add:Nanchong,Sichuan(637001),ChinaTel:[phone],,,,,,,STUDYANDAPPLICATIONOFCORROSION-RESISTANTLOW-DENSITYCEMENTSYSTEMYangYuanguang,GuoXiaoyang,ZhangYulongandLiaoGang(SouthwestPetroleumInstitute).NATUR.GASIND.v.21,no.2,pp.48~51,3/25/2001.(ISSN1000-0976;InChinese)ABSTRACT:Themechanismofsetcementcorrosionisdiscussedbyusingphaseanalysismethodinthispaper.ItispointedoutthattheunconsolidatedphaseanddiffusionaleffectasaresultoftheactionofformationwatersolutionmatrixCa(OH)2withCa(OH)2arethebasicreasoncausingthecorrosionofthesetcementandcasing.sexteriorwallandatechnicalideaofusingcorrosion-resistantcementtofromaprotectionringtopreventcasing.sexteriorwallcorrosionisputforward.Anewlow-densitycementsystemsuitedtosealingLuoheformationisdevelopedand,byusingit,thedifficultproblemofcasing.sex-teriorwallcorrosioninLuoheaqueouslayerinChangqingOilFieldissuccessfullysolved,effectivelyprolongingtheproduc-tionphaseofoilandgaswells.SUBJECTHEADINGS:Changqingoilfield,Oilandgaswell,Wellcementing,Lightweightcement,CorrosionYangYuanguang(associateprofessor);graduatedfromSouthwestPetroleumInstitutein1985.Heismainlyengagedintheteachingworkonpetroleumengineeringandtheresearchonwellcementingandcompletion.Add:Nanchong,Sichuan(637001),ChinaTel:[phone],,,,,,,ALABORATORIALRESEARCHONESTIMAT-INGCHANNELING-PREVENTINGABILITYOFCEMENTSLURRYBYUSEOFGELSTRENGTHMETHODZhangXinguo,GuoXiaoyangandYangYuan-guang(SouthwestPetroleumInstitute).NATUR.GASIND.v.21,no.2,pp.52~55,3/25/2001.(ISSN1000-0976;InChinese)ABSTRACT:Howtoobjectivelyandaccuratelyevaluatethechanneling-preventingabilityofcementslurryisstilladiff-icultproblemwhichisnotsolveduptonowinthewellcement-ingcirclesathomeandabroad.Inthispaper,throughlabex-periment,thequantitativerelationshipbetweentheeffectiveslurrycolumnpressureandgascuttingresistanceandthefactorswhichaffecttheformertwoisstudiedandtheircalculationmodelintheprocessofcementslurrysettingissetup,makingtheconditiontocausethebreakthroughflowinannulusquant-ization,whichcanbeusedforpredictingande