克拉瑪依油田典型套管co,2腐蝕行為及防護(hù)措施評(píng)價(jià)

1、西安石油大學(xué)碩士學(xué)位論文克拉瑪依油田典型套管CO腐蝕行為及防護(hù)措施評(píng)價(jià)姓名：葉春艷申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：材料加工工程指導(dǎo)教師：李平全嚴(yán)密林20040515AbstractSubject：TheC02CorrosionBehaviorsandProtectionMethodsofTypicaiCasinginKelamayiOilFieldSpecialty：TheMaterialProcessingEngineering：YeChig

2、NameYeChunyan(signature)2數(shù)地：)f亟叢絲Instructor：LiPingquan(signature)』L陛到芝YanMilin(signature)f虹也l：kABSTRACTTheC02corrosionbehaviorsandmechanismofN80andPI10casingsteelsfrom2differentmanufacturerwerestudiedbycorrosionweight—lo

3、ssmethodinasimulationenvironmentwithhightemperatureandhighpressureSEMandXRDwereusedasaccessorialsurfaceanalyticalmethodFurthertheeffectsonthecorrosionrateofthesurfaceappearancestructureandconstitutionofcorrosionscaleunde

4、rdifferenttemperatureandpartialpressurewasstudiedTheelectrochemicalimpedancespecUoscopy(EIS)wasusedtoanalyzetheelectrodereactionofC02corrosionofN80andPll0steelinvariousconditions，andtherelevantEISmodelswereestablishedtoi

5、nterprettheeffectofelectrodereactionsonEIScurveMoreoverthesemodelswereusedtoanalyzetheinfluenceoftemperatureonelectrodereactionItisfoundthattheanodicEIScharactersofthefourkindsofmaterialshadthreetimeloopsunderlowtemperat

6、urethecapacitivearcathighfrequencythecapacitivearcandtheinductivearcatlowfrequencyWiththeincreasedtemperature，theinductivearCreduceandcapacitivearcexpandatlowfrequencyonN80andPll0steelmadebyChengDouSteelMillAt90℃，tlleind

7、uctivearcofPll0steelmadebyXimulaisiMillandN80steelmadebyJapanMilllostcompletelyatlowfrequency，onlythecapacitiveareathighfrequencyandtheinductivearcatlowfrequencyexistintheEISOnthebasisoftheC02corrosionbehaviorsandcorrosi