| 浅谈江汉油区井下管柱防腐技术 |
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| 引用本文： | 高原,杨延红. 浅谈江汉油区井下管柱防腐技术[J]. 江汉石油职工大学学报, 2008, 21(2): 48-51 |
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| 作者姓名： | 高原 杨延红 |
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| 作者单位： | 1. 长江大学石油工程学院,湖北,荆州,434025
2. 中国石化江汉油田分公司江汉采油厂,湖北,潜江,433123 |
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| 摘 要： | 矿化度、二氧化碳、硫化氢、溶解氧等是造成井管柱腐蚀的主要因素。经过两年的现场实验，形成了以油井井筒连续投加缓蚀荆技术、井下管柱阴极防护技术、井下油管防磨蚀技术等为主的配套防护工艺。综合数据统计显示，油井腐蚀速度由（0.091-0．4147）mm／a降低到（0．0006-0．0026）mm／a，腐蚀油井免修期平均延长197天，年减少腐蚀作业井次28井次，年节约成本775万元，取得了显著的经济效益。
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| 关 键 词： | 井下管柱 腐蚀现状 腐蚀因素 防护措施 |
| 文章编号： | 1009-301X(2008)02-0048-04 |
| 修稿时间： | 2008-01-16 |
Discussion On Corrosion Preventive Technique of Downhole Pipe String in Jianghan Oil Region |
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| GAO Yuan,YANG Yan-hong. Discussion On Corrosion Preventive Technique of Downhole Pipe String in Jianghan Oil Region[J]. Journal of Jianghan Petroleum University of Staff and Workers, 2008, 21(2): 48-51 |
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| Authors: | GAO Yuan YANG Yan-hong |
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| Affiliation: | GAO Yuan, YANG Yan-hong (1. College of Petroleum Engineering of Yangtze University, Jingzhou Hubei 434025, China; 2. Jianghan Oil Production Plant of Jianghan Oilfield Company, SINOPEC Qianjiang Hubei 433123,China) |
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| Abstract: | Salinity,carbon dioxide,hydrogen sulfide and dissolved oxygen are the main factors of downhole string pipe corrosion.Through two years' field experiment,the matched protection technology is formed which principally includes technique of feeding corrosion inhibitor continuously into oil well bores,cathodic protection technique of downhole pipe string and anticorrosion protection technique of downhole oil tubing.The integrated data shows that the corrosion speed of oil wells is lowered from 0.091～0.4147mm/a to 0.0006～0.0026mm/a,the average period of free of maintenance is prolonged by 197 days,the annual operation times of corroded wells are decreased by 28,and that the cost is saved by 7,750,000 RMB. |
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| Keywords: | Downhole Pipe String Present Situation of Corrosion Corrosion Factors Precautions |
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