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时间:2018-12-07
《大庆油田储水罐内腐蚀规律及微观原因分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、大庆油田储水罐内腐蚀规律及微观原因分析赵重石大庆油田工程有限公司摘要:为丫进一步明确大庆油田储水罐内腐蚀规律以及微观腐蚀原因,采用传统现场挂片法和微观分析技术,通过采油厂联合站内储水罐现场腐蚀评价试验,研宂了大庆油田储水罐溶液介质下的腐蚀规律,并借助扫描电子显微镜分析了腐蚀微观形貌特征,初步明确了微观腐蚀成因,为进一步研究储水罐的腐蚀机理及防腐措施提供了可靠的基础依据。现场试验结果表明:聚驱储水罐腐蚀比水驱储水罐腐蚀严重;聚驱储水罐腐蚀严重部位集屮在下部,腐蚀形貌为以氧化物和硫化物为主的片层状结构,水
2、驱储水罐腐蚀严重部位集中在中部,腐蚀形貌为氧化物为主的不规则局部腐蚀形貌;在防腐措施上,聚驱储水罐重点防腐部位应考虑中下部,而水驱储水罐则应考虑中上部。关键词:大庆油田;储水罐;内腐蚀;微观;聚驱;水驱;作者简介:樊海燕:高级工程师,硕士研宂生,2006年毕业于哈尔滨工业大学,主要从事油田管道及储水罐腐蚀与防护研宄和设计工作,0459-5902534,fanhanyan@petrochina.com.cn,黑龙江省大庆市让胡路区大庆油田工程有限公司,163712。收稿日期:2017-07-23Inte
3、rnalCorrosionRulesandMicroscopicReasonAnalysisforWaterStorageTanksinDaqingOilfieldFanHaiyanLiShuanglinZhaoZhongshiAbstract:InordertoconfirmtheinsidecorrosionrulesandmicroscopiccorrosionreasonsofwaterstoragetankinDaqingOilfield,traditionalcouponsandmicro
4、scopicanalysistechniquesareusedandthroughthefieldcorrosionassessmenttestofwaterstoragetanksinthemulti-purposestationoftheoilproductionplant,thecorrosionruleofwaterstoragetankswithsolutionmediuminDaqingOilfieldisstudied,andthemicrostructurecharacteristic
5、sofcorrosionisanalyzedbySEM.Themicroscopicreasonsofcorrosionarepreliminarilyconfirmed,whichprovidesdependablefoundationandbasisforthefurtherstudyofthecorrosionmechanismandanti-corrosionmeasuresofwaterstoragetanks.Theresultsoffieldtestsshowthatcorrosiono
6、fwaterstoragetanksforpolymerfloodingismoreseriousthanthatofwaterfloodingwaterstoragetanks;theseriouscorrosionpartsofpolymerfloodingwaterstoragetanksarefocusedontheunderpart,withcorrosionmorphologyoflayerstructuremainlycontainingoxideandsulfide;theseriou
7、scorrosionpartsofwaterfloodingwaterstoragetanksareintensivelylocatedinthemiddle,withcorrosionmorphologyoftheirregularstructuremainlycontainingoxide;foranticorrosionmeasures,thekeyanti-corrosionareaofpolymerfloodingwaterstoragetanksisthemiddleandlowerpar
8、t,andthekeyanti-corrosionareaofwaterfloodingwaterstoragetanksisthemiddleandupperpart.Keyword:DaqingOilfield;waterstoragetank;internalcorrosion;microcosmic;polymerflooding;waterflooding;Received:2017-07-23储水罐是油田重要的地面工艺设备之一,是储运系统设施
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