极地钻探装备动密封失效分析及改进措施研究综述

Research status of failure analysis and improvement measures of dynamic seal for key equipment in polar drilling

南极地区资源的开发和利用是世界能源可持续发展中的重大课题之一。在极地钻探装备研究中,密封技术是决定钻探装备能否安全、高效、经济运行的关键性技术。在此背景下,本文分析了极地钻探装备密封现存的问题,根据密封材料和密封技术的新发展,综合考虑到密封结构、材料的力学性能和极地低温钻井工况,指出了极地钻探装备密封目前常见的失效形式,并综述了已有改进方案,系统归纳了国内外现有极地装备类型及其技术特点,剖析了国内外之间存在的技术差距。

The exploitation and utilization of Antarctic resources is one of the important issues in the sustainable development of energy in the world.In polar drilling equipment research,sealing technology is the key technology to determine whether drilling equipment can operate safely,efficiently and economically.In this context,this paper systematically analysis the existing seal problems of polar drilling equipment.According to the new development of sealing materials and sealing technology,taking into account the seal structure,mechanical properties of materials and polar low‑temperature drilling conditions,it points out the common failure forms of polar drilling equipment seal and summarizes the existing improvement schemes.The types and technical characteristics of existing polar equipment at home and abroad are systematically summarized,and the existing technical gap between home and abroad is analyzed.