高含硫环境中地面集输管线材质腐蚀影响因素

:,1972,;1999,;:(610213):[phone],13540147686E2mail:[e-mail]()..,2004;24(12):122123H2S(8%16%)CO2(5%10%),,H2SCO2Cl-20#,,20#,0.3482.559mm/a,Cl-20#:Cl-,20#;4020#;20#,4.867mm/a,,40,;,Cl-,H2SCO2Cl-,,1,2,,,H2SCO2,,Cl-20#,20#,30153mm10MPa,H2SCO2NaCl,72h1.,Cl-H2SCO2,1,232,,20#0.3482.559mm/a,Cl-20#20602,40,20#1AH2S(MPa)BCO2(MPa)C()DCl-(%)10.80.520021.20.7540331.61.06062()ABCD(mm/a)111110.458212221.701313331.04421232.559522310.348623120.367731321.02832130.661933210.4531.0761.3460.4950.4191.0910.9031.5711.0290.7110.6200.8031.420R0.3800.7261.0761.0012212004123()ABCD(mm/a)111111.10212220.997313331.591421231.775522311.20623120.946731321.16832131.337933211.6281.2291.3451.1281.3091.3071.1781.4671.0341.3751.3881.3171.568R0.1460.210.3390.534,2060,20#,40,2,Cl-,20#,Cl-23:,;H2SCO2,(:H2S1600mg/L,CO2280mg/L,40,20#,1)H2SCO2,1Cl-20#H2SCO2,Cl-,H2SCO2Cl-,20#,Cl-,(1),Cl-,,,,Cl-,Cl-,Cl-32,Cl-20#2.20#,1.0cm44()(mm/a)400.8661.6161.9013.079:H2S1.5MPa,CO21.0MPa,10MPa,Cl-3.0%,20#3.,;,,55()(mm/a)(mm/a)400.8661.6164.867-3.011.9013.079--(126)32124121Fe2O3(N/cm)84.30%22.515.216.44%26.513.15300L(H2S20mg/m3),1,,..,2000;18(4):40432,,..,2000;31(3):58623,,.COS.,1998;27(2):1021044.NCT.,1993;14(3):11145HG/T251321993.(B):()6,,..:,2002:2367HG/T2782296:,1996(2004210215)(123)45,20#,4.867mm/a,,,H2S,,(1)H2SCO2,,20#0.3482.559mm/a,Cl-20#Cl-,20#;4020#(2)20#,4.867mm/a(3),4020#401DavidWWhitmore,PEng.Corrosionexperiencesandinhibi2tionspracticesinwetsourgasgatheringsystems.CORRO2SION87/46,19872GerusBRD.Detectionandmitigationofweightlosscorro2sioninsourgasgatheringsystems.In:H2Scorrosioninoil&gasproduction.Acompilationofclassicpapers,19813AlbertoValdes,RaymundoCase.TheeffectofsmallamountofH2SonCO2corrosionofacarbonsteel.CORROSION98/22,1998(2004210215)621200412scope,etc.,theprocessofhydrophobicmicro2zonesforming,super2molecularpolymercreatingandspatialnetworkdevelopingbyhydrophobicassociationisstudiedwhenthehydrophobicallyassociatingpolyacrylamideisinaqueoussolution.Inthefluores2cenceexperiments,takingpyreneasprobe,withtheplotsofI3/I1vs.polymerconcentration,thecriticalassociatingconcen2trationofthesolutionisdetermined.Theassociatingstateofthehydrophobicallyassociatingpolymerinthesolutionandtheformingprocessofthenetworkstructurearestudied.Withthetransmissionelectronmicroscope,themicrostructureoftheso2lutionofthehydrophobicallyassociatingpolymerisinvestigat2ed.Itisfoundthenetworkstructuremaybeformedwhenthehydrophobicallyassociatingpolymerreachesacertainconcentra2tion.Withrheologymethod,itisprovedtheviscosityofthepolymersolutionwillincreasesharplywhenlargehydrophobicmicro2zonesarecreatedinthesolution.SUBJECTHEADINGS:Polyacrylamide,Polymersolu2tion,Microstructure,Fluorescenceanalysis,Apparentviscosi2ty,ElectronmicroscopespectrumHanLijuan(female),bornin1975,isstudyingfordoc2toraldegree.Add:Nanchong,Sichuan(637001),ChinaTel:[phone]E2mail:[e-mail]RSOFGROUNDGATHERINGLINEINHIGHSULFUROUSENVI2RONMENT1)LiuZhide,HuangLiming,YangZhongxi,GuTan,SunXuhuiandXiongWei(NaturalGasRe2searchInstituteofSouthwestOilandGadFieldBranch,PCL).NATUR.GASIND.,v.24,no.12,pp.122123,12/25/2004.(ISSN1000-0976;InChinese)ABSTRACT:Giventhehighpressureandcorrosionenvi2ronmentwith8%16%ofH2Scontentand5%10%ofCO2contentinthegatheringlineforadomesticgasfieldwithhighsulfurcontent,thepossiblecorrosionfactorsareanalyzed.Andwithstatichightemperatureautoclave,theactinglawofdifferentcorrosionfactors,suchasH2S,CO2,temperature,Cl,andelementalsulfur,etc.,onthesteel20#isinvestigated.Theresultsshowthesteel20#iscorrodedseverelyintheexper2imentalscope.Thecorrosionrateisat0.3482.559mm/a.Butthetemperature,Clcontentinwaterandelementalsulfurarethemainfactorsofthesteel20#corrosion.ThehighertheClcontentis,thefasterthecorrosionrateis.Thecorrosionrateofthesteel20#isbiggerrelativelyat40oftemperature.Theweight2losscorrosionandpittingcorrosionwillbespeededsincetheelementalsulfurexisting.Themaximumpittingcorro2siondepthis4.867mm/a.Basedonthein2housestudy,itissuggestedthepropermeasuresshouldbetakentoremovetheel2ementalsulfurdepositedinthegatheringlineandkeepoutoftemperatureabout40forthepipelineoperationtoreducethecorrosion.Also,thecorrosioncontrolshouldbeenhancedforthegatheringlinewheretheformationwaterwithhighClcon2tentconverges.SUBJECTHEADINGS:Highpressure,Gatheringline,H2S,corrosion,CO2corrosion,Temperature,Watercorrosion,Elementalsulfur,Corrosionrate,InfluenceLiuZhide(engineer,Master)wasbornin1972.Add:HuayangTown,Chengdu,Sichuan(610213),ChinaTel:[phone]Cell:13540147686E2mail:[e-mail]2OXIDEDESUL2FURIZERUNDERATMOSPHERICTEMPERA2TURE1)LanChangyun,HeXinxiu(ChengduTechnologyUniversity),XuHaijun(NanjingUniversity)andLuYajuan(ShanghaiOrganicChemistryInstitute).NATUR.GASIND.,v.24,no.12,pp.124126,12/25/2004.(ISSN1000-0976;InChinese)ABSTRACT:Applicationofsolidferric2oxidedesulfurizershasbeenlimitedforalongtimebecausethegaswithhighsulfurcontentcantbepurifiedsufficientlyunderhighspacevelocity.So,thenewformulaofferric2oxidedesulfurizerisdeveloped