煤与煤系铀矿产协同勘查技术方法  

Cooperative exploration methods of coal and uranium deposits in coal-bearing strata

作　　者：魏迎春[1,2] 张昀 李新 曹代勇[1,2] 王安民[1] 靳亮亮 宁树正 WEI Yingchun;ZHANG Yun;LI Xin;CAO Daiyong;WANG Anmin;JIN Liangliang;NING Shuzheng(College of Geoscience and Surveying Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China;State Key Laboratory for Fine Exploration and Intelligent Development of Coal Resources,China University of Mining and Technology-Beijing,Beijing 100083,China;General Prospecting Institute of China National Administration o f Coal Geology,Beijing 100039,China)

机构地区：[1]中国矿业大学(北京)地球科学与测绘工程学院,北京100083 [2]中国矿业大学(北京)煤炭精细勘探与智能开发全国重点实验室,北京100083 [3]中国煤炭地质总局勘查研究总院,北京100039

出　　处：《煤炭科学技术》2025年第1期216-224,共9页Coal Science and Technology

基　　金：国家重点研发计划资助项目(2021YFC2902004);国家自然科学基金资助项目(42372187,42472231)。

摘　　要：煤与煤系铀矿产协同勘查已成为矿产资源勘查的重要方向,为提高找矿效率和节约勘查成本,基于煤与煤系铀矿产的基本特征、勘查技术方法的有效性和勘查工程布置的经济性,分析了煤与煤系铀矿产赋存的基本特征。研究表明:①分析了煤系铀矿产的基本特征,煤系中煤层和铀矿产表现为下煤上铀(煤系砂岩型铀矿)或铀煤同层产出(煤型铀矿)的空间分布关系,煤中铀主要的赋存方式为有机质螯合或束缚,砂岩中的铀主要的赋存方式为铀矿物、吸附铀和含铀矿物。②基于煤系铀矿产勘查技术手段的有效性,提出了煤炭勘查工作已完成区和煤与煤系铀矿产勘查新区2种情况下的煤与煤系铀矿产协同勘查技术手段:在煤炭勘查工作已完成区,充分利用煤炭勘查资料,筛选自然伽马测井曲线高异常层段和区域,利用γ能谱测井验证煤系铀矿化信息,圈定煤系铀矿的普查区,按照煤系铀矿勘查技术手段分阶段选择相应的技术手段;在煤与煤系铀矿产勘查新区,煤与煤系铀矿产协同勘查技术手段在煤炭勘查技术手段的基础上,增加对煤系铀矿有效响应的放射性技术手段(γ能谱测井、氡及其子体测量)、岩心编录、穿透性地球化学等技术手段。③探讨了煤与煤系铀矿产协同勘查工程布置,按照煤、铀矿勘查规范,遵循“协同设计、协同部署、协同施工”的原则,分2种情况开展煤与煤系铀矿产的协同勘查布置:在煤炭勘查工作已完成区,筛选自然伽马测井曲线高异常层段和区域部署施工验证孔,圈定煤系铀矿的普查区,按照煤系铀矿勘查规范分阶段进行勘查工程布置;在煤与煤系铀矿产勘查新区,开展煤与煤系铀矿协同勘查,首先在整个勘查区内寻找煤炭资源,布置煤炭勘查工程,在自然伽马测井曲线高异常层段和区域圈出煤系铀矿靶区,在煤系铀矿靶区以寻找煤系铀矿为主,开展煤系铀�The cooperative exploration of coal and uranium deposits in coal-bearing strata has become a significant direction search for mineral resources,in order to improve the exploration efficiency,and save the exploration cost,the basic characteristics and uranium deposits in coal-bearing strata production and occurrence are analyzed,the selection of technical means and the layout of co-operative exploration are discussed,and the cooperative exploration model of coal and uranium deposits in coal-bearing strata is construc-ted.The research indicates that:①The basic characteristics of uranium deposits in coal-bearing strata are analyzed,in coal-bearing strata,the spatial distribution of coal seams and uranium deposits is characterized by uranium deposits overlying coal seams(sandstone-type uranium deposits in coal-bearing strata)or alternating coal and uranium deposits(coal-rock type uranium deposits).The primary form of uranium occurrence in coal is through organic chelation or binding,whereas in sandstone,uranium mainly exists as uranium minerals,ad-sorbed uranium,or uranium-containing minerals.②According to the effectiveness of coal-bearing strata uranium deposits exploration technology means,coal and uranium deposits in coal-bearing strata exploration technology means can be divided into two situations.In the completed coal exploration area,utilize the coal exploration data effectively to identify high-anomaly strata and regions based on the natur-al gamma logging curve,verify the uranium mineralization information of the coal measures usingγenergy spectrum logging,delineate the survey area for coal measures uranium deposits,and select appropriate technical methods in phases in accordance with the technical re-quirements for coal measures uranium exploration.In the new area of coal and uranium deposits in coal-bearing strata exploration,the co-operative exploration technology of coal and uranium deposits in coal-bearing strata has added the effective response of radioactive tech-nology(γ-energy spectrum logging

关 键 词：煤 煤系铀矿产 协同勘查技术 协同勘查工程 协同勘查模型 

分 类 号：P618[天文地球—矿床学]