| 科学超深井钻探铝合金钻杆的腐蚀失效分析 |
| 投稿时间：2016-11-23 修订日期：2016-12-10 点此下载全文 |
| 引用本文：梁健,顾艳红,岳文,等.科学超深井钻探铝合金钻杆的腐蚀失效分析[J].钻探工程,2017,44(2):60-66.LIANG Jian,GU Yan-hong,YUE Wen,et al. Analysis on Corrosion Failure of Aluminum Alloy Drill Pipe for Scientific Ultra-deep Well Drilling[J]. Drilling Engineering, 2017,44(2):60-66. |
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| 基金项目:国家自然科学基金项目“高温环境下铝合金钻杆磨损失效及防护机制研究”（编号：51404217）；中国地质调查局地质调查项目“地质勘查深孔用高强度铝合金钻杆开发应用”（编号：12120113016800） |
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| 中文摘要:针对铝合金钻杆在复杂的超深井钻井工程服役条件，分析了铝合金钻杆腐蚀行为的主要外在钻井工程因素，并进行了松辽盆地资源与环境深部钻探“松科二井”铝合金钻杆工程试样腐蚀程度的测试与分析。分析结果表明：钻杆结构、磨损与应力、钻井液介质、井内高温高压是其产生腐蚀的主要服役条件因素；铝杆体与钢接头连接处的腐蚀情况最为严重，铝杆体次之，加厚端部分耐蚀性最好；腐蚀产物的主要成分是Al2O3和Al(OH)3相。 |
| 中文关键词:铝合金钻杆 科学钻探 超深井 钻井工程 腐蚀 |
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| Analysis on Corrosion Failure of Aluminum Alloy Drill Pipe for Scientific Ultra-deep Well Drilling |
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| Abstract:In view of the service conditions of aluminum drill pipe in complex ultra-deep well drilling engineering, the main external drilling engineering factors of the corrosion behavior of aluminum alloy drill pipe are analyzed, the test and analysis on corrosion degree of the aluminum drill pipe engineering sample of Songke-2 well in the project of deep drilling of resources and environment in Songliao basin. The results show that the structure of drill pipe, wear and stress, drilling fluid medium as well as high temperature and high pressure are the main factors of corrosion; the corrosion at the connection point of aluminum rod and steel joint is the most serious and the aluminum rod body is the next; the corrosion resistance of pipe upsetting end is the best, the main components of the corrosion products are Al2O3 and Al (OH)3 phase. |
| keywords:aluminum alloy drill pipe scientific drilling ultra-deep well drilling engineering corrosion |
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