MGD无源磁导向工具隔热保护舱优化设计  

Optimized Design of Insulation Protection Cabin for MGD Passive Magnetic Steering Tool

作　　者：张吉喆 乔磊 张宇昊 任宪可 车阳 吴昌亮 金玲 Zhang Jizhe;Qiao Lei;Zhang Yuhao;Ren Xianke;Che Yang;Wu Changliang;Jin Ling(CNPC Engineering Technology R&D Company Limited;Kembl Petroleum Technology Co.,Ltd.,Beijing;National Engineering Research Center of Oil&Gas Drilling and Completion Technology;Key Laboratory of Enhanced Oil and Gas Recovery of Educational Ministry,Northeast Petroleum University)

机构地区：[1]中国石油集团工程技术研究院有限公司 [2]北京康布尔石油技术发展有限公司 [3]油气钻完井技术国家工程研究中心 [4]东北石油大学提高油气采收率教育部重点实验室

出　　处：《石油机械》2024年第9期45-51,共7页China Petroleum Machinery

基　　金：中国石油天然气集团有限公司科学研究与技术开发项目“无源磁导向救援井关键技术及配套工具研制”(2021DJ6506)。

摘　　要：目前测井仪器在175℃及以上高温环境下正常工作解决方案更注重隔热,通常使用真空保温瓶和多层隔热材料隔绝外部热量的进入,各学者主要通过理论公式和经验系数设计保温瓶,对保温瓶温度场数值模拟研究较少。为此,根据磁性探管的结构和保温瓶参数,结合温度场耦合分析了MGD无源磁导向工具温度场随时间变化的分布情况。分析结果表明:探管传感器在175℃左右的地层环境中需要工作8~10 h,此时上、下隔热体长度应为150、50 mm,上、下吸热体长度均为150 mm;增加吸热体体积可延长极限工作时间,应综合考虑工作时间、传感器适宜工作温度和隔热保护舱外形尺寸等因素合理确定吸热体体积。所得结论可为无源磁导向工具隔热保护舱的设计提供理论依据。The solutions for normal operation of logging tools at high temperature of 175℃and above focus more on insulation.Vacuum flasks and multilayer insulation materials are usually used to isolate the entry of external heat.Scholars design vacuum flasks mainly based on theoretical formulas and empirical coefficients,and there is rare study on the temperature field of vacuum flasks by numerical simulation.In this paper,based on the structure of the magnetic probe and the parameters of the vacuum flask,together with temperature field coupling,the variation of the temperature field of magnetic steering tool over time were analyzed.The results show that the probe sensor needs to work for 8-10 hours underground at around 175℃,where the lengths of the upper and lower heat insulators should be 150 mm and 50 mm respectively,and the lengths of the upper and lower heat carriers should be 150 mm simultaneously.The increase of the heat carrier volume can extend the maximum working time,and the heat carrier volume should be reasonably determined by considering the factors such as working time,suitable working temperature of the sensor and external dimension of the insulation protection cabin.The research conclusions provide a theoretical basis for the design of insulation protection cabin for magnetic steering tool.

关 键 词：测井仪器 无源磁导向工具 隔热保护舱 保温瓶 温度场 数值模拟 

分 类 号：TE927[石油与天然气工程—石油机械设备]