伽马能谱测井技术在铀资源量估算中的应用研究  

Application of Spectral Gamma-ray Well Logging in Uranium Resource Exploration

作　　者：焦仓文[1] 乔宝强[1] 冯延强[1] 杨怀杰 吴仙明 JIAO Cangwen;QIAO Baoqiang;FENG Yanqiang;YANG Huaijie;WU Xianming(CNNC Key Laboratory of Uranium Resource 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》2021年第3期492-499,共8页Uranium Geology

摘　　要：为满足铀矿勘查应用需求,准确测定铀含量,达到符合资源量提交标准的目标要求,对于伽马能谱测井,不仅要求仪器在测量准确性、稳定性以及一致性等方面满足指标要求,而且还需要完善相应的解释方法;特别地,要有不同矿床类型、不同品级钻孔获取的大量测井与岩心分析数据,作为促使铀矿勘查伽马能谱测井技术方法走向成熟的样本支撑,这是一项长期、复杂、系统性的工作。文章从仪器刻度、三性保证,及测井应用等方面,总结了近几年的探索性工作,说明其潜在应用领域及优势。In order to accurately detecting the uranium concentration of ore segment and satisfying mineral resource estimation standard in hard-rock uranium prospecting,it is mandatory to have a tremendous amount of welling logging data as well as core samples assay to verifying the specifications of measurement accuracy,instrument stability,consistency of well logging instrument,and innovating of data reduction technique.This paper summarized the work both in instrument specification verification and in-situ application in peralkaline granite-related U/Th prospect and sand-hosted uranium exploration in recent years,and concludes that spectralγwell logging technique has the promising potential for uranium resource estimation,particularly in uranium thorium mixed type prospect.

关 键 词：铀矿勘查 伽马能谱测井 模型刻度 现场三性检查 

分 类 号：P631.817[天文地球—地质矿产勘探]