Cooling performance and test verification of active cooling device in ultra-high temperature environment while drilling

Li Gaowei; Liu Ke; Gao Wenkai; Zeng Yong; Guan Kang; Chen Xinyuan

doi:10.7623/syxb202510010

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Cooling performance and test verification of active cooling device in ultra-high temperature environment while drilling

更新时间：2025-11-08

- Cooling performance and test verification of active cooling device in ultra-high temperature environment while drilling
- ACTA PETROLEI SINICA Vol. 46, Issue 10, Pages: 1960-1969(2025)
- 作者机构：
  
  1. 武汉科技大学机械工程学院,湖北,武汉,430081
  2. 中国石油集团工程技术研究院有限公司,北京,102206
  3. 油气钻完井技术国家工程研究中心,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.7623/syxb202510010
  CLC： TE927
- Published Online：04 November 2025，
  
  Published：04 November 2025
- 稿件说明：
移动端阅览
李高为, 刘珂, 高文凯, 曾镛, 管康, 陈新元. 随钻主动降温装置超高温环境制冷性能及实验验证[J]. 石油学报, 2025, 46(10): 1960-1969.

Li Gaowei, Liu Ke, Gao Wenkai, et al. Cooling performance and test verification of active cooling device in ultra-high temperature environment while drilling[J]. Acta petrolei sinica, 2025, 46(10): 1960-1969.
李高为, 刘珂, 高文凯, 曾镛, 管康, 陈新元. 随钻主动降温装置超高温环境制冷性能及实验验证[J]. 石油学报, 2025, 46(10): 1960-1969. DOI： 10.7623/syxb202510010.

Li Gaowei, Liu Ke, Gao Wenkai, et al. Cooling performance and test verification of active cooling device in ultra-high temperature environment while drilling[J]. Acta petrolei sinica, 2025, 46(10): 1960-1969. DOI： 10.7623/syxb202510010.

摘要

深层、超深层带来的井下高温问题一直是制约随钻仪器稳定工作的重要因素

限制了深层油气资源的勘探开发进程

而在随钻仪器中增加主动降温装置

通过降低仪器舱体的温度

保障常规元器件正常工作

以间接提升其抗高温能力

是解决井下高温问题的方法之一。基于逆斯特林循环原理

设计了一种适应井下超高温环境(＞200℃)的主动降温装置

建立了物理模型

通过数值模型分析了制冷性能

并对其处于不同模拟地层温度下的制冷效果进行地面实验。研究结果表明

该主动降温装置在225℃的超高温环境中

产生2.26 W制冷功率

可将模拟随钻仪器局部空间内的温度控制在100℃

所设计的主动降温装置结构尺寸满足下井条件、热环境适应良好、方案可行

预期能有效提升常规随钻仪器抗高温性能。

Abstract

Downhole high-temperature in deep and ultra-deep reservoirs has always been a major factor limiting the stable operation of drilling instruments

thereby restricting the exploration and development process of deep petroleum resources. One of the methods for solving the downhole high-temperature problem is to integrate an active cooling device inside the drilling instruments

which can reduce the temperature of the drilling instrument compartment and guarantee the operation of conventional components

thus indirectly improving the overall high-temperature resistance of the instrument system. Further

an active cooling device that can adapt to ultra-high downhole temperature (200 ℃) was developed based on the principle of reversed Stirling cycle. Then a physical model was established to analyze its cooling performance by numerical simulation

and ground-based test was performed to assess its cooling effect at different simulated formation temperatures. The research results show that the active cooling device can generate a cooling power of 2.26 W in the ultra-high temperature environment of 225 ℃

and maintain the temperature in the simulated local space of the drilling instrument at 100 ℃. The structural size of the designed active cooling device meets the downhole conditions; moreover

the device shows good adaptability to the thermal environment

thus demonstrating a feasible solution. It is expected to significantly enhance the high-temperature resistance performance of conventional drilling instruments.

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references

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