油气集输管道内防腐技术应用进展.pdfVIP

油气集输管道内防腐技术应用进展

赵毅;许艳艳;朱原原;王毛毛;李大朋;王修云;肖雯雯

【摘要】ABSTRACT:Inviewofinternalcorrosionproblemofoilgas

transportationpipeline,theinternalcorrosiontechnologyforoilandgas

pipelineandtheirappliedresultwereintroduced,includingcorrosion

resistantmaterial,liningtechnology,coatingtechnologyandcorrosion

inhibitorinjectiontechnology.Itwasindicatedthatcorrosionresistant

metalmaterialwasfeaturedwithgoodcorrosionresistancebuthas

deficiencyineconomicperformance.Toreducetheproductioncost,

double-metalcom-positepipewasselectedassubstituteforcorrosion

resistantmetalmaterial.Butthecorrosionproblemoccurredinthe

weldingseam.Theweldingseambecametheweaklinkwhichlimitedits

application.Corrosionresistantnon-metalmaterialworkedwonderfullyin

preventingcorrosion,butitsmechanicalpropertyandthecapabilityof

bearinghighheatwaspoor.Thescopeofliningtechnologyandinternal

coatingtechnologywerelimitedasaresultoftemperature,pressureand

thecompositionofcor-rosivemedium,suchasCO2,H2Sandsolid

particles.Thecorrosionresistanceresultofcorrosioninhibitorinjection

technologywascloselyidentifiedwithcorrosioninhibitoranddosing

process.Thecorrosioninhibitoranddosingprocessshouldbechanged

accordingtoactualworkingcondition.Inallusiontotheexistingproble

ofinternalcorrosiontechnologiesabove,thedevelopmenttrendof

internalcorrosiontechnologyofpipelinewasproposed.Itincludedtwo

aspects:overcomingthedisad-vantagesofexitinginternalcorrosion

technologyandimprovingthecorrosionresistance.Meanwhile,itis

requiredtodevelopnewanti-corrosionmaterialsandinternalcorrosion

technologywhichhadtheadvantagesofremarkablecorrosionresistance

re-sult,lessproductioncost,convenientoperationandapplicationand

extension.%针对油气田集输管道的内腐蚀问题,分别介绍了耐蚀材料、衬里技术、

涂镀层技术与药剂防腐技术等管道内防腐技术及其现场应用效果,指