Technology development status and prospect of drilling fluid cooling equipment
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摘要: 随着国内油气钻井向着万米深井开发，钻井过程中井底温度越来越高，因此需要对钻井液降温冷却以保护井下工具仪器。而国内钻井液冷却装置普遍存在设备超大、超高以及设备冷却降温幅度不大的现状。本文从介绍国外钻井液冷却装置技术现状出发，阐述了国外钻井液冷却装置技术现状；同时结合国内钻井工况，重点分析了国内自然冷却、开式冷却、闭式冷却和强制冷却4种钻井液冷却装置的工作原理、优缺点和适应范围。结合国内钻井技术发展现状，为保障冷却装置降温效果，结合道路运输和环保要求，分析了冷却装置降温机理研究、工程适应性、应用局限性和装置可靠性等关键技术难题，提出了冷却装置技术研发思路，为开发研制适应性强、可靠性高和冷却效果显著的装置提供参考。Abstract: With the development of domestic oil and gas drilling toward 10,000 meters deep wells, the bottom hole temperature is getting higher and higher, so the drilling fluid needs to be cooled to protect downhole tools. In domestic drilling fluid cooling devices, the equipment is generally oversized, ultra-high and the cooling range of equipment is small. This paper starts from the introduction of the technical status of drilling fluid cooling devices at abroad. The working principle, advantages and disadvantages, and application range of four kinds of drilling fluid cooling devices,including natural cooling, open cooling, closed cooling and forced cooling, are emphatically analyzed in combination with domestic drilling conditions. In order to ensure the cooling effect of the cooling device, the paper analyzes the key technical problems of cooling mechanism, engineering adaptability, application limitation and equipment reliability in combination with the requirements of roads and environmental protection, and puts forward the technical research and development ideas of the cooling device of the cooling device in combination with the domestic drilling situation,providing guidance for the development of devices with strong adaptability, high reliability and remarkable cooling effect.
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Key words:
- drilling fluid /
- cooling equipment /
- heat exchanger /
- cooling tower /
- refrigeration unit
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