我国天然气产业的现状与发展战略Ξ

:1000-2634(2000)01-0090-05X1,1,1(1.,257062):,,,:;;;;:TE-1:A,,70,,,,,,21,,,,11.1(CNPC)(CNOOC),,38.04m3,,90%,,,,30%,6%,;,,28.7%,,,;,21%,3.2%,;,11.5%,,,327.7m3,100,40,,,,70%38.04m3,10.5m3,327.7m3,,3500m58.39%,1500m,221Vol.22No.120002JournalofSouthwestPetroleumInstituteFeb2000X:19990716:,(1964),(),,,,©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(28.5%),46.00m3(26%),45.50m3(26%),14.5%5%11997,:,76.6%;,3.7%8.8%,:44%25.5%14.3%1.41.2km,426mm5700km,,,,700,,,,,,,,,,,1.51.5.1191:©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(86.8%),(10.7%)1.5.220002020(2),,,,21.6,,,,,,(),,,+,,,1.5/Btu,3.4/Btu,1.8/Btu,1.4/m3,0.640.7/m3,,,,,,,,,;,,2,,2.1,,,2.2,,320103,,,,,1.21km,292000©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1),199739.56%,,90.24%,,(2),28.54%67.9%(85%):,,(3),600,56,,30%(199710.7%),25%,(4)199714.4%;3%4%,(76%)(18%)(5)1997,()5000,0.08%(6),8%10%,,,1/3,,,,,,2.4,,,,,:,,,,,+,,,,,3,:,,,,;,,,;,,,,;,,,:,,;,,;,,,3.1,,,,6%3.2(1)(2)(3),(4),391:©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1)2000,(2)20002010,(3)201020203.4(1),,,,,,,(2),,,,,,,;,,(3),,,:;;,,;,(4),,,,,;,(5),,,,,,,,,,,,,(6),,,,,,,,,:1.[J].,1999,(1):30342.[J].,1999,(1):25283MchrvarzM,SamsamBakhtiariAM.21[A].[C]...1998.6796894.()[J].,1998,(4):19215.()[J].,1998,(5):812()492000©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:hotoilpipeline,thermalcalculation,soil,mathematicalmodelOILANDGASPIPELINESPANCALCULATIONABOUTHIGHPRESSUREANDLARGEDIAMETERDENGDaoming(SouthwestPetroleumInst),XULiJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.1,81-83,2000(ISSN1000-2634,INCHINESE)Basedongeometricalnon-linearity,consideringtheinflu2enceofequivalentaxialforce(S0)onthedeflectionofpipeline,thepaperpresentedtheequationswithorwithoutanchorblocksatbothendsforcalculatingstaticanddynamicstrengthsofaeri2alcrossingpipelines.Theequationsforthepipelineswithan2chorblocksareexplicit.Asforthepipelineswithoutfixedan2chorsatbothends,itisregardedthatthelateralandlongitudi2nalresistanceofsoiltoburiedpipelinesisproportionaltothelat2eralandlongitudinaldisplacementsofpipelines,respectively.Calculationsofinternalforcesanddeformationsarereducedtothesolutionoftwononlinearequations,andnaturalfrequenciesofpipelinesaredeterminedfromthecharacteristicequations.TheexplicitcriterionS0eithercompressiveortensionalwaspresented.Thepaperdescribedtheverifiedexamplesofthestaticanddynamicstrengths.KeyWords:oilandgasgathering,pipelineaerialcrossing,buriedpipeline,strength,naturalfrequency,calculation,equa2tionDEVELOPMENTOFUNITSMIXINGFOREIGNSUB2STANCESINFLOODWATERDENGMaoyun(SouthwestPetroleumInst),WUKaisong,XONGHanqiaoJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.1,84-87,2000(ISSN1000-2634,INCHINESE)Basedonhowtomaketheadditionalsubstancesinfloodwaterkeepuniformdistributionduringlong-timeexperimentalprocess,wedevelopedtheunitsofmixingadditionalsubstancesinfloodwater.Thispaperbrieflyintroducedtheflowchartoftheexperimentinwhichdifferentadditionalsubstancesinfloodwaterarehowtojamcoreanditsrules,andpresentedthestructurecomposition,theoperationprinciple,andthedesignofmainelementsofhigh-pressurevesselwithstirrerintheex2periment.Bytestingandcheckingthesamplevesselwithstir2rer,itsfunctionsandresultsindicatedthattheunitrunsreli2ably,makestheadditionalsubstancessuspenduniformlyinfloodwater,andkeepstheflood-waterpressuresteady.Finallyitimprovedthepermeabilityoffloodingwater.mixingunits,de2sign,high-pressurevessel,floodwater,additionalsubstancesONTHEBESTAPPROXIMATIONBYSPECIALTRIGONO2METRICALSERIESXIAOWei(SouthwestPetroleumInst)JOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.1,88-90,2000(ISSN1000-2634,INCHINESE)Thispaperinvestigatedthebestapproximationforoddfunctionf(x)C2bytrigonometricalseries,theconclusionwasdrawn:ifFourierCoefficientsonf(x)isOregularlyvary2ingquasimonotone,then.KeyWords:bestapproximation,Fouriercoefficient,O-regularlyvaryingquasimonotoneTHECURRENTSITUATIONANDDEVELOPMENTSTRATEGYOFCHINANATURALGASINDUSTRYLIHongxun(petroleumuniversity),SHUNQiriu,SHONGXiaodongJOURNALOFSOUTHWESTPETROLEUMINSTITUTE,VOL.22,NO.1,91-94,2000(ISSN1000-2634,INCHINESE)Thepaperintroducesthebasicsituationofchinasre2source,production,usage,pi