| 摘要: |
| 分析石油钻具在使用过程中经常出现的裂纹缺陷的产生机制，讨论声发射检测技术的特点以及将其应用到钻 具检测中的可行性。提出两种声发射源定位方法,完善声发射信号数据采集系统和钻具加载方案，分析用声发射技 术检测石油钻具临界裂纹缺陷的测试及评定方法。对声发射检测技术进行了现场应用检测验证。结果表明，此检 测结果与普通无损检测结果一致，验证了声发射技术应用到实际钻具检测中的可行性。 |
| 关键词: 石油钻具 临界裂纹 声发射 动态检测 |
| DOI： |
| 分类号: |
| 基金项目:国家安全生产监督管理总局项目(07-06B-01 -04-02);闰家“863”计划项H (2006AA06Z238) |
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| Acoustic emission detection method for critical crack defect in petroleum drilling tools |
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WANG Yun-mei1,2,ZHANG Hong1,DONG Wei-rong2,QIU Chao2
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(1. Faculty of Mechanical and Electronic Engineering in China University of Petroleum, Beijing 102249 ;2. Antonoil Oilfield Services Limited, Beijing 100102, Chirm)
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| Abstract: |
| The mechanism of common critical crack defects generated in the use of petroleum drilling tools was analyzed. The essentiality of acoustic emission detection technology was set forth，and the feasibility of acoustic emission application to drilling tool detection was reviewed. The two acoustic emission source orient methods were offered, and the collection system of acoustic emission signal data and drilling tool loading plan were perfected, and the testing and assessment methods of critical crack defects detected by acoustic emission detection technology were analyzed. The site testing of the detection technology of acoustic emission was made. The results agree well with the ordinary non-destructive testing. The application of the acoustic emission technology to practical drilling tool detection verified the feasibility of the method. |
| Key words: petroleum drilling tool critical crack acoustic emission dynamic detection |
