| 张渠区块井筒管串腐蚀状况 |
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| 引用本文： | 刘立,郭亮,李建东,王成达,张昊,张随望.张渠区块井筒管串腐蚀状况[J].石油化工腐蚀与防护,2007,24(3):23-25. |
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| 作者姓名： | 刘立 郭亮 李建东 王成达 张昊 张随望 |
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| 作者单位： | 1. 中国石油天然气集团公司长庆石油勘探局,陕西,西安,710021
2. 中国石油天然气股份有限公司长庆油田分公司,陕西,延安,716000 |
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| 摘 要： | 张渠区块开采层位为长-2层,单井液量含水较高,流体腐蚀性强。从现场实际情况来看,腐蚀导致抽油杆强度降低,并发生断裂。因此,对张渠区块长-2层井筒的腐蚀原因进行了调研。结果表明,该区块井下管串腐蚀为局部腐蚀,腐蚀的主要因素是硫化氢和二氧化碳。针对硫化氢和二氧化碳引起的腐蚀,提出了选材和向井筒加注缓蚀剂的防腐蚀措施。
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| 关 键 词： | 井筒 腐蚀 腐蚀调研 腐蚀原因 管串 |
| 文章编号： | 1007-015X(2007)03-0023-03 |
| 修稿时间： | 2006年9月27日 |
Investigation of Wellbore Corrosion in Zhangqu Area |
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| Liu Li,Guo Liang,Li Jiandong,Wang Chengda,Zhang Hao,Zhang Suiwang.Investigation of Wellbore Corrosion in Zhangqu Area[J].Petrochemical Corrosion and Protection,2007,24(3):23-25. |
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| Authors: | Liu Li Guo Liang Li Jiandong Wang Chengda Zhang Hao Zhang Suiwang |
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| Abstract: | The Zhangqu area's production layer is Chang-2 layer,where the water content is high in single well,and the liquid is very corrosive.The corrosion has reduced the staff's strength,resulting raptures and failures.The investigation on the corrosion causes concluded that the corrosion mainly was local corrosion and the major corrosion culprits were H_2 S and CO_2.Corrosion protection measures like selection of proper materials and injection of corrosion inhibitors are proposed to prevent the corrosion caused by H_2 S and CO_2. |
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| Keywords: | wellbore corrosion corrosion investigation corrosion cause cluster |
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