| 特深钻探钻柱组合优化设计研究 |
| 投稿时间：2019-02-14 修订日期：2019-02-14 点此下载全文 |
| 引用本文：尹浩,梁健,孙建华.特深钻探钻柱组合优化设计研究[J].钻探工程,2019,46(4):56-62.YIN Hao,LIANG Jian,SUN Jianhua. Research on optimum drilling string assembly design for extra deep hole drilling[J]. Drilling Engineering, 2019,46(4):56-62. |
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| 基金项目:国家重点研发计划“深地资源勘查开采”重点专项“5000米智能地质钻探技术装备研发及应用示范”（编号：2018YFC0603400）课题“高性能薄壁绳索取心钻杆研制”（编号：2018YFC0603403）；国家自然科学基金项目“科学超深井铝合金钻杆的腐蚀防护机制研究”（编号：41772390） |
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| 中文摘要:钻杆柱作为地球深部探测中深地与深水钻探技术的核心与关键，单一规格钻柱许用深度有限，难以满足大陆万米特深孔科学钻探及大洋深水深孔钻探工程的设计要求。本文通过减轻下部钻柱重力及提高上部钻柱强度方案，对其组合设计开展优化研究。以拉伸条件下的强度计算为主，加之一定的设计安全系数和拉伸余量来满足动载荷以及其他复杂情况对钻柱强度的需求，并开发了钻柱组合设计与安全系数计算的软件，可实现不同孔深设计和钻杆结构要求下的钻柱组合设计与安全系数计算。 |
| 中文关键词:特深孔钻探 钻柱组合 安全系数 拉力余量 软件开发 |
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| Research on optimum drilling string assembly design for extra deep hole drilling |
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| Abstract:The drill string is the core and key technology in deep land and deep water drilling for deep earth exploration; however, with the limited allowable drilling depth, the drill string of a single specification is difficult to meet the design requirements of 10000m extra deep continental scientific drilling and deep ocean drilling. In this paper, by reducing the weight of the lower portion of the drill string and improving the strength of the upper portion, the design of the drill string assembly is optimized. With the priority of tensile strength calculation, the demand on the drill string strength is satisfied in consideration of the safety factor and tensile allowance in case of dynamic loads and other complex situations, and the software for the drill string assembly design and safety coefficient calculation is developed, which can realize the drill string assembly design and safety coefficient calculation for different hole depths and drill rod structures. |
| keywords:extra deep hole drilling drill string assembly safety factor tension allowance software development |
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