小口径γ能谱深测井探管耐高温技术研究  

Research on the High Temperature Resistance Technology ofγSpectroscopy Logging Probe With Small Caliber

作　　者：冯延强[1] 刘祜[1] 焦仓文[1] 杨建涛[1] 邵帅 FENG Yanqiang;LIU Hu;JIAO Cangwen;YANG Jiantao;SHAO Shuai(CNNC Key Laboratory of Uranium Resources Exploration and Evaluation Technology,Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室,北京100029

出　　处：《铀矿地质》2022年第1期115-119,共5页Uranium Geology

基　　金：国家重点研发计划项目“铀矿基地深部成矿条件地球物理探测技术研究”(编号:2017YFC0602603);中核集团青年英才项目“基于新型TlBr等探测器井下γ能谱直接铀定量探测关键技术研究”项目(编号:物QNYC2019-1)联合资助。

摘　　要：为支撑我国热液型铀矿深部探测需求,结合我国自然γ能谱测井技术发展现状,研究了直径Φ59 mm的小口径γ能谱深测井探管耐高温技术。重点介绍探管材料、一体化机械结构、真空隔热技术及相变吸热技术,实测了γ能谱测井探管内部电路的热功耗,通过理论计算设计了耐高温探管连续工作15 h的相变材料体积。并在我国相山铀矿科学深钻CUSD1实际应用,结果表明在井下近110℃坏境下探管内部监测温度为64.19℃,满足γ能谱探管工作温度要求。In order to support the deep exploration of hydrothermal uranium deposits,high temperature resistant technology of small diameter gamma spectroscopy deep logging probe with a diameter ofΦ59 mm was studied according to the development status of natural gamma spectroscopy logging technology in China.The study was focused on the materials,integrated mechanical structure,vacuum heat insulation and phase change heat absorption of the probe tube.The thermal power consumption of the internal circuit of theγenergy spectrum logging probe was measured,and the phase change material volume of high temperature resistant probe was designed to work continuously 15 h by theoretical calculations.The new probe tube was used in logging the scientific deep drilling CUSD1 in Xiangshan and the results showed that the internal monitoring temperature of the probe tube was 64.19℃in the nearly 110℃underground environment,which meets the working temperature requirements for theγenergy spectrum logging.

关 键 词：小口径 γ能谱测井探管 耐高温 

分 类 号：P631.817[天文地球—地质矿产勘探]