摘要
采用导热凝胶填充测井仪电路与骨架的间隙可以强化井下电子器件散热,但缺乏系统性的研究。应用仿真及实验手段对导热凝胶在测井仪热管理中的应用效果进行研究,并与常规测井仪进行对比。仿真结果表明,导热凝胶具有强化井下电子换热及显热蓄热的双重作用。实测结果显示热源最高温度从165.2℃下降至117.8℃,其与吸热体的温差从39.7℃下降至28.0℃,验证了导热凝胶的热管理效果。
Thermal gel filling in the logging tools enhances the electronic heat dissipation, but there is a lack of systematic research. In this research, the effect of thermal gel in the thermal management of logging tool is investigated by simulation and experiment, which is also compared with conventional logging tool. The simulated results show that the thermal gel has dual functions of heat transfer enhancement and sensible heat storage capacity on the downhole electronics. The experimental results show that the maximum temperature of the heat sources drops from 165.2 ℃ to 117.8 ℃, and the temperature difference between the heat source and the heat absorber decreases from 39.7 ℃ to 28.0 ℃. The effectiveness of the thermal gel is verified.
作者
田志宾
蓝威
魏赞庆
罗小兵
TIAN Zhibin;LAN Wei;WEI Zanqing;LUO Xiaobing(China Oilfield Services Limited, Beijing 065201, China;School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China)
出处
《测井技术》
CAS
2021年第5期488-491,共4页
Well Logging Technology
基金
中国海洋石油集团有限公司科技项目“超高温高压电缆测井系统研制与产业化应用”(CNOOC-KJ ZDHXJSGG YF 2019-02)
国家自然科学基金杰出青年基金项目“封装中的流动与传热”(51625601)。
关键词
测井仪
热管理
导热凝胶
井下高温
电子器件散热
仿真
logging tool
thermal management
thermal gel
downhole high temperature
electronic heat dissipation
simulation
