原油长输管道改输天然气管体安全检验与评价
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摘要
针对将闲置的输油管道改为输气管道,为了保障管道本体安全,需要对管道本体进行检验与评价。按照相关标准对管道进行检验与评价,包括外腐蚀直接检测与评价、漏磁内检测、压力试验,结果发现管道存在占压、埋深不足、阴极保护不合格、防腐层破损、管体外损伤缺陷等问题。
Aiming at transformation of the unused oil pipeline into gas pipeline,in order to ensure the safe operation of the pipeline,inspection and evaluation of pipeline were needed to be tested and evaluated.In accordance with the relevant standards,inspection and evaluation of pipeline were carried out,including the external corrosion direct detection and evaluation,magnetic flux leakage inner detection and pressure test.The results show pipeline exists problem include land occupied,insufficient buried depth,cathodic protection unqualified,protecting coating damaged,external pipeline damage defects and so on.
Aiming at transformation of the unused oil pipeline into gas pipeline,in order to ensure the safe operation of the pipeline,inspection and evaluation of pipeline were needed to be tested and evaluated.In accordance with the relevant standards,inspection and evaluation of pipeline were carried out,including the external corrosion direct detection and evaluation,magnetic flux leakage inner detection and pressure test.The results show pipeline exists problem include land occupied,insufficient buried depth,cathodic protection unqualified,protecting coating damaged,external pipeline damage defects and so on.
引文
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[11]全国锅炉压力容器标准化技术委员会.基于风险的埋地钢质管道外损伤检验与评价:GB/T 30582—2014[S].北京:中国标准出版社,2014:17-21.
[2]张穹.濮临输油管道改输天然气的技术分析[J].油气储运,2003,22(3):9-14.
[3]全国锅炉压力容器标准化技术委员会.埋地钢质管道腐蚀防护工程检验:GB/T 19285—2014[S].北京:中国标准出版社,2014:4
[4]国家质量监督检验检疫总局特种设备安全监察局.压力管道定期检验规则—长输(油气)管道:TSG D7003—2010[S].北京:新华出版社,2010:8
[5]任峰,何仁洋.城市燃气管网检测问题研究[J].管道技术与设备,2014(5):16-17.
[6]石油管材专业标准化技术委员会.含缺陷油气输送管道剩余强度评价方法:SY/T 6477—2014[S].北京:石油工业出版社,2015:1-4.
[7]高松巍,郑树林,杨理践.长输管道漏磁内检测缺陷识别方法[J].无损检测,2013(1):41-43.
[8]杨理践,王玉梅,冯海英.智能化管道漏磁检测装置的研究[J].无损检测,2002,24(3):100-102.
[9]刘智军,吴永焕,陈李斌.双—魏旧输油管道改输天然气技术分析与措施[J].管道技术与设备,2003(5):22-23.
[10]任峰,何仁洋,刘长征.城市燃气埋地钢质管道泄漏检测定位技术[J].管道技术与设备,2016(2):13-16.
[11]全国锅炉压力容器标准化技术委员会.基于风险的埋地钢质管道外损伤检验与评价:GB/T 30582—2014[S].北京:中国标准出版社,2014:17-21.