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| 硫化氢腐蚀环境下的钻具失效研究 | |
| 引用本文： | 刘永刚,罗琼英,李三昌,王青林.硫化氢腐蚀环境下的钻具失效研究[J].石油矿场机械,2009,38(3):62-65. |
| 作者姓名： | 刘永刚 罗琼英 李三昌 王青林 |
| 作者单位： | 1. 中国石油天然气集团公司,管材研究所,西安,710065 2. 川庆钻探工程公司,钻具井控公司,重庆,401124 3. 中国石油西部钻探,克拉玛依钻片公司,新疆,克拉玛依,834000 4. 渤海能克钻杆有限公司,河北,青县,062650 |
| 摘 要： | 在含H2S的天然气储层的开采过程中,钻具时常会发生H2S应力腐蚀,出现钻具脆性断裂失效事故,对钻具的安全性造成严重威胁。通过对一起失效钻杆的断口宏观形貌、金相组织、化学成分、断口微观形貌和力学性能进行全面的试验分析,结合钻杆的使用环境,判定钻杆失效为H2S应力腐蚀开裂,并提出了预防钻杆失效的建议和措施。 |
| 关 键 词： | H2S 钻杆 应力腐蚀 失效 |
Research on Drill Tools Failure in Hydrogen Sulfide Environment |
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| LIU Yong-gang,LUO Qiong-ying,LI San-chang,WANG Qing-lin.Research on Drill Tools Failure in Hydrogen Sulfide Environment[J].Oil Field Equipment,2009,38(3):62-65. | |
| Authors: | LIU Yong-gang LUO Qiong-ying LI San-chang WANG Qing-lin |
| Affiliation: | LIU Yong-gang , LUO Qiong-ying , LI San-chang , WANG Qing-lin (1. Research Institution of Tubular Goods of CNPC , Xi ＇ an 710065,China;2. Drilling Tools and Well Control Company of Chuanqing Drilling Corp. , Chongqing 401124,China;3. Drilling Company of West Drilling Corp. of CNPC , Kelama yi 834000, China ; 4. Bohai Nkk Drill Pipe Co. ,Ltd. , Qingxian 062650, China) |
| Abstract: | During the exploitation of the natural gas reservoir recently, the hydrogen sulfide stress corrosion to drill tools took place occasionally, which resulted in the brittle fracture failure accident of drill tools and serious threat to the safe of drilling tools. Through the comprehensive analysis on fracture surface macroscopic feature, microstructure, chemical composition, fracture surface microscopic feature, mechanical properties and the use condition of one fracture failure drill pipe. A conclusion was made that the failure cause of the drill pipe was hydrogen sulfide stress corrosion and suggestions and measures for prevention congener failure were put forward. |
| Keywords: | H2S |
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