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:1000-2634(2007)-11-0150-03CNG31,1,1,2,1(1.,610500;2.,610015):CNG,CNGCNG,,:;(0.3MPa),;(0.15MPa),:CNG;;:TE644:ACNG,(SY/T75461996),5[1],,,11.1[2],(),,,,,,,,,,,,,,,,,,1.2,,,,,:,,,:,29Vol.29200711JournalofSouthwestPetroleumUniversityNov20073:2007-09-30:(1983-),(),,2003,,CNG,,,0.20.3MPa,0.030.05MPa,10%15%,,[2]25MPa,,,0.31.2MPa,,,,,,,,,,[3]2(1)1/2,1/3,,,710[4],,,,,(2),,(),(3)(0.3MPa),,;(0.15MPa),(4),,,,,,,,[3](5),,,,,(6),,,,,,,:,,,,,,,,,CNG(7)[2],-10,-20,,,,-30,,,,,,1512007-11:CNG(8),,,,,,,25MPa,,,,,,3(1),,(2)(0.3MPa),;(0.15MPa),:[1],.CNG[J].,2001,27(4):33-35.[2],.CNG[J].,2000,20(3):124-127.[3].CNG[J].,2003,4(1):31-32.[4].[J].,2005,25(6):66-69.(::)1126,,,,,,,,,,,,9,,()2512007NALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,2007-11,143-146(ISSN1000-2634,INCHINESE)Abstract:Inrecentyears,thegeographicalinformationsystem(GIS)hasbeenusedmoreandmore,itprovidesnewsupplementarymeansandtoolsforinformationprocessinginpipeconstruction,pipesafety,productionrunninganalysis,economicevaluationofoilandgasstorageandtransportation.AfteranalyzingtheeffectofGISonmanag2ingoilandgaspipeline,itisconcludedthatutilizationofGISasaworkingplatformistheoptimalmethodfortrea2tingmassivequantityofdatainpipelineintegritymanagement,especiallyforspatialdata.Inthispaper,themeth2odsofpipelineintegritymanagementandthedesignmodelofpipelineintegritymanagementsystemsbasedonGISareintroduced.Additionally,thecomponenttechnologyisadoptedintheapplicationsystemdevelopment.Thissys2tembringstheexistingspatialanalysisfunctionandspatialdatamanagementfunctionofGISsoftwareintofullplay,providinganapplicativeworkingplatformofpipelineintegritymanagement.Keywords:oilandgaspipeline;integritymanagement;GIS;databasedesign;functiondesignTHEINFLUENCEOFHEAT2TREATMENTTECHNIQUEONPROPERTIESOFFE2BASEDAMOR2PHOUSALLOYSONGMao2lin(SouthwestPetroleumUniversity,ChenduSichuan610500,China),ZHANGDe2fen,CHENXiao2wen,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,2007-11,147-149(ISSN1000-2634,INCHINESE)Abstract:Throughthecomparisonofmagnetismperformanceparametersafterthedifferentheattreatmenttech2nique,thechangelawofmagnetismperformanceparametersisobtained,meanwhile,thebestheattreatmentsystemisfound,i.e.,themagneticpropertyparametersarethebestfor20minat405.Thenthroughthecomparisonofperformancechangebeforeandaftertheheattreatmentofcrystallization,theresultshowstheinfluenceslawoftheFe2basedamorphousalloyperformanceisthemicrohardnessoftheamorphousribbonisincreased,butbrittlenesshasincreased,too.Itisalsoadifficultythatitmustbesolvedinthefuture;throughthepolarizationcurveanalysisbeforeandaftertheheattreatmentofcrystallization,theresultshowsthatthecorrosionresistancepropertyofamor2phousribbonishigherthanthatofsampleaftertheheattreatment.SothispowerdistributiontransformerwhichisproducedwithFe2basedamorphousalloywillbeusedinoffshoreoil2gasfield.Keywords:Fe2basedamorphousalloy;ribbon;heat2treatment;magneticproperty;corrosionresistancepropertyTECHNICALANDECONOMICANALYSISOFLOWANDHIGHPRESSUREDEHYDRATIONTECH2NIQUEFORCNGSTATIONNINGCheng2qian(SouthwestPetroleumUniversity,ChengduSichuan610500,China),CENKang,YANYu,etal.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,2007-11,150-152(ISSN1000-2634,INCHINESE)Abstract:ThechoiceofdehydrationtechniqueisoneofthemostimportantcontentsintheprocessofCNGstationdesign,whichisdirectlyrelatedtosecurity,stabilityandeconomicsoftheproject.Basedondehydrationmecha2nism,investmentandcost,inletpressureofthenaturalgas,influenceonthecompressor,dehydrationdegree,etc.,thelowandhighpressuredehydrationtechniqueiscomparedanddiscussedinthispaper.Theconclusionsisdrawn,i.e.,adsorptiondehydrationmethodisadaptedtothecompressednaturalgas(CNG),thelowpressuredehydra2612007Abstracttiontechniqueshouldbechosenwhentheinletpressureishigh(0.3MPa)andstable,thehighpressuredehydra2tiontechniqueshouldbechosenwhentheinletpressureislow(0.5MPa)andfluctuant.Keywords:CNGstation;dehydrationtechnique;analysisDESIGNOFELECTRICALCONTROLSYSTEMFORTHET68BORINGMACHINEBASEDONPLCWANGYan2ling(SouthwestPetroleumUniversity,ChengduSichuan610500,China),CHENGui.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,2007-11,153-155(ISSN1000-2634,INCHINESE)Abstract:ThedesignusestheMitsubishiFX2N248MRseriesProgrammableLogicController(PLC)tocarryonatechniquereformationofelectricalsystemfortheT68boringmachine.Firstly,theloadcalculationiscarriedon,themaincircuitandtherelatedprotectioncircuitareredesigned,theelectricaldistribution&controlapplianceschosen,thecontrolelectricalcircuitredesigned,thePLCinputandoutputpointesassignmentdesigned,thentrap2ezoiddiagramandcompiledthecontrolprocedureofFX2N248MRdrawn.Finally,thesimulationoftheelectricalcontrolsystemonthePLClaboratoryconfirmsthatusingthePLCtoimprovetheelectricalsystemforthemachineofpetroleum&oilgasisfeasible.Keywords:PLC;T68boringmachine;electricalcontrolsystemTHEEXPANSIONANDANALYSEOFELUTONGBOTTOMSTRUCTURELIXin2lin(SouthwestPetroleumUniversity,ChengduSichuan610500,China),ZHANGJian,CHENWen2bin.JOURNALOFSOUTHWESTPETROLEUMUNIVERSITY,VOL.29,2007-11,156-157(ISSN1000-2634,INCHINESE)Abstract:Withthe