胜利油田典型区块埋地混输管道腐蚀结垢原因分析与防护措施
Cause Study and Countermeasures of Corrosion and Scaling of Buried Mixed Transmission Pipelines in Typical Blocks of Shengli Oilfield
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- DOI:
- 作者:
- 吕德东1, 孙艳红1, 尹春峰1, 于宏亮2
Lü De-dong1
- 作者单位:
- 1. 胜利油田技术检测中心腐蚀与防护研究所,山东东营 251507;
2. 胜利油田临盘采油厂,山东东营 251507
Corrosion and Protection Research Institute of Shengli Oilfield Technical Inspection Center,Dongying 257000,China
- 关键词:
- 埋地混输管道;腐蚀原因;腐蚀防护
buried mixed transmission pipeline;corrosion cause;corrosion protection
- 摘要:
- 胜利油田临盘采油厂盘7-1站埋地混输管道结垢严重,腐蚀穿孔频繁。通过利用X射线衍射分析(XRD)、扫描电镜能谱分析(SEM/EDX)等方法对该管道内、外壁腐蚀产物和垢物进行综合分析,确定了导致被检管道腐蚀穿孔的主要原因是CaCO3结垢引起的垢下氧浓差腐蚀和SiO2引起的冲刷腐蚀,这为管道的更换、维修及腐蚀防护提供了科学依据,对保障管道安全运行具有重要意义。
There are severe scaling and frequently corrosive perforating in the buried mixed transmission pipelines at Pan-7 Station of Shengli Linpan Oil Production Plant.By means of X ray diffraction （XRD） and scan electronic microscope energy spectrum （SEM/EDX） to perform comprehensive analyses on the corrosive products and scales on the wall of the pipeline,the main causes of corrosive perforation are founded to be the underneath scale oxygen concentration difference corrosion induced by CaCO3 scaling and the erosive corrosion induced by SiO2.These analyses supply a scientific basis for pipeline replacement,repair and corrosion protection,that is significant to ensure pipeline safe operation.2009,4(4): 52-54 收稿日期：2008-9-25分类号：TE988作者简介：吕德东(1972- ),男,山东济阳人,高级工程师,1992年毕业于大连大学商品检验专业,2006年取得大连理工大学软件工程硕士学位.研究方向为腐蚀与防护.参考文献：
[1] 周玉,武高辉.材料分析测试技术[M].哈尔滨:哈尔滨工业大学出版社,2001.
[2] 龙媛媛,石仁委,柳言国,等.8种管线内防腐技术在胜利油田的中试应用及性能评价[J].材料保护,2007,40(4):53-54.