油气集输管线内防腐蚀技术
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摘要
为提高含水油气集输管道的内壁防腐蚀水平,减少因管道内壁腐蚀泄漏造成的生产事故及环境污染,介绍了现场内补口和免内补口两类集输管道内防腐蚀技术,包括补口机补口、风送挤涂、复合管线管、内环氧喷涂+管口内衬不锈钢一体化防腐蚀等。分析了各自的技术特点、工艺流程和存在问题。表明:内环氧喷涂+管口内衬不锈钢一体化防腐蚀技术有着其他技术所不具备的优势,工厂预制防腐蚀管质量可检可控,现场可免内补口施工,在小口径管道内防腐蚀方面具有推广价值。
In order to improve inner-wall protection level of water-bearing oil and gas gathering pipelines and reduce accident and environmental pollution caused by corrosion leakage, technologies of field joint coating and free joint coating were introduced, including joint coating machine, air pressure extrusion coating, composite pipeline, integrated solution of internal epoxy spraying and stainless steel liner for nozzle. In addition, the technical characteristics, process flows and existing problems were analyzed, which further confirms integrated solution has the advantages that others do not possess, that is, the quality of prefabricated pipes can be controlled, free field joint coating can be realized and it is worth promoting in respect to corrosion protection of small diameter pipeline.
In order to improve inner-wall protection level of water-bearing oil and gas gathering pipelines and reduce accident and environmental pollution caused by corrosion leakage, technologies of field joint coating and free joint coating were introduced, including joint coating machine, air pressure extrusion coating, composite pipeline, integrated solution of internal epoxy spraying and stainless steel liner for nozzle. In addition, the technical characteristics, process flows and existing problems were analyzed, which further confirms integrated solution has the advantages that others do not possess, that is, the quality of prefabricated pipes can be controlled, free field joint coating can be realized and it is worth promoting in respect to corrosion protection of small diameter pipeline.
引文
[1] 中国石油天然气集团公司.钢质管道内涂层液体涂料补口机补口工艺规范:SY/T 4078—2014[S].北京:石油工业出版社,2014:2-3.
[2] 万风新,叶明.SL-Ⅱ型补口机及其在海底管道内涂层补口中的应用[J].石油工程建设,2002,28(1):46-48.
[3] 林竹,韩文礼,郭继银,等.小口径管道内防腐蚀技术[J].石油工程建设,2017,43(4):76-80.
[4] 雷晓青,毛升好,高武,等.HCC纤维增强复合内衬防腐层施工质量影响因素分析[J].石油工业技术监督,2016,32(10):1-3.
[5] 中国石油天然气集团公司.钢质管道液体涂料风送挤涂内涂层技术规范:SY/T 4076—2016[S].北京:石油工业出版社,2016:11-12.
[6] 毛升好,唐勇,雷晓青,等.HCC纤维增强复合防腐内衬技术在长庆油田集输管道中的应用[J].石油工程建设,2016,42(4):76-79.
[7] 王永芳,袁江龙,张燕飞,等.双金属复合管的技术现状和发展方向[J].焊管,2013,36(2):5-9.
[8] 范兆廷.新型输油气双金属复合管道腐蚀及可靠性研究[D].重庆:重庆大学,2013.
[9] 李发根,孟繁印,郭霖,等.双金属复合管焊接技术分析[J].焊管,2014,37(6):40-43.
[10] 周新新.内衬不锈钢复合钢管焊接工艺[J].焊接技术,2012,41(9):57-59.
[11] 许爱华,院振刚,杨光,等.双金属复合管的施工焊接技术[J].天然气与石油,2010,28(6):22-28.
[2] 万风新,叶明.SL-Ⅱ型补口机及其在海底管道内涂层补口中的应用[J].石油工程建设,2002,28(1):46-48.
[3] 林竹,韩文礼,郭继银,等.小口径管道内防腐蚀技术[J].石油工程建设,2017,43(4):76-80.
[4] 雷晓青,毛升好,高武,等.HCC纤维增强复合内衬防腐层施工质量影响因素分析[J].石油工业技术监督,2016,32(10):1-3.
[5] 中国石油天然气集团公司.钢质管道液体涂料风送挤涂内涂层技术规范:SY/T 4076—2016[S].北京:石油工业出版社,2016:11-12.
[6] 毛升好,唐勇,雷晓青,等.HCC纤维增强复合防腐内衬技术在长庆油田集输管道中的应用[J].石油工程建设,2016,42(4):76-79.
[7] 王永芳,袁江龙,张燕飞,等.双金属复合管的技术现状和发展方向[J].焊管,2013,36(2):5-9.
[8] 范兆廷.新型输油气双金属复合管道腐蚀及可靠性研究[D].重庆:重庆大学,2013.
[9] 李发根,孟繁印,郭霖,等.双金属复合管焊接技术分析[J].焊管,2014,37(6):40-43.
[10] 周新新.内衬不锈钢复合钢管焊接工艺[J].焊接技术,2012,41(9):57-59.
[11] 许爱华,院振刚,杨光,等.双金属复合管的施工焊接技术[J].天然气与石油,2010,28(6):22-28.