杭甬线东段天然气管道清管作业实践与分析.docx

2015年2015

第6期PipelineTechniqueandEquipmentNo．6

杭甬线东段天然气管道清管作业实践与分析

岳铭亮1,2

(1.中国石油大学(北京),北京102200;2.浙江浙能天然气运行有限公司,浙江杭州310000)

摘要:杭甬线天然气管道自投产以来尚未进行过清管,随着年输气量逐年增加,从管道运行状况来看有必要对其进行清管作业,清除管道内长期积存的杂质,检测管道内部通过能力以及自身缺陷。合理的输气方案和有效的控制清管器速度的措施保障了此次清管作业顺利实施。文中详细介绍了杭甬线东段(春晓-余姚)天然气管道清管作业的工艺方案及过程,结合自身运行特点和国内外长输管道清管作业经验,总结清管作业中存在的问题,提出改进措施和建议,为天然气管道安全高效的清管作业提供参考。

关键词:天然气管道;清管作业;安全高效

中图分类号:TE8文献标识码:B文章编号:1004-9614(2015)06-0040-03

PiggingOperationPracticeandAnalysisofEastLineofHang-YongNaturalGasPipeline

YUEMing-liang1,2

(1.ChinaUniversityofPetroleum(Beijing),Beijing102200,China;

2.ZhejiangZhenergyGasOperationCo.,Ltd.,Hangzhou310000,China)

Abstract:Hang-Yongnaturalgaspipelinehadnotyetbeenpiggingsinceitwasputintoproduction.Withthenaturalgastransmissionvolumeincreasingyearbyyear,itwasnecessarytocarryonthepiggingoperationconsideringtheconditionofpipe-line.Thepiggingoperationremovedthelong-termimpuritiesinthepipelineandchecktheinternalcapacityanddefectofpipe-line.Thereasonablegastransmissionschemeandtheeffectivemeasurestocontrolthepiggingvelocityensuredthesmoothimple-mentationofthepiggingoperation.ThepiggingschemeandprocessofeastlineofHang-Yongnaturalgaspipeline(Chunxiao-Yuyao)wasintroducedinthispaper.Combinedwithitsowncharacteristicsandtheexperienceoflong-distancepiggingopera-tion,theproblemsinpiggingoperationweresummarizedinthispaperandtheimprovementmeasuresandsuggestionswereputforward,thusprovidingreferencesforthesafeandefficientpiggingoperation.

Keywords:naturalgaspipeline;piggingoperation;safeandefficient

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