淮南煤田刘庄矿区A组煤底板灰岩地热资源特征分析  

Characteristics of the geothermal resources of limestone in the coal floor of Group A,Liuzhuang mining area,Huainan Coalfield

作　　者：张帅 李静[1] 张克松 高志强 ZHANG Shuai;LI Jing;ZHANG Kesong;GAO Zhiqiang(The First Institute of Hydrogeology and Engineering Geological Prespecting of Anhui Geological Surveying Bureau,Anhui Bengbu 233000,China)

机构地区：[1]安徽省地勘局第一水文工程地质勘查院,安徽蚌埠233000

出　　处：《上海国土资源》2023年第3期68-73,共6页Shanghai Land & Resources

基　　金：安徽省公益性地质工作项目“淮南煤田深部A组煤底板灰岩地热资源调查评价”(2015-g-36)。

摘　　要：对淮南煤田刘庄矿区A组煤底板灰岩地热资源进行了调查研究,建立了地热概念模型。研究区煤层底板灰岩具有典型的热传导型层状热储特征,通过钻探与测井取得热储层顶底板温度,估算其地热资源储量为171.17×10^(16) J,折合标准煤58.48×106 t;抽水试验结果表明热储层富水性弱,涌水量小且热损失大致出水温度低。提出进一步详查及煤热共采等建议。A geothermal conceptual model was established by investigating the geothermal resources of the Group A coal floor limestone in the Liuzhuang mining area,Huainan Coalfield.The main thermal reservoir in the study area is the A coal floor limestone thermal reservoir,which has the typical layered thermal storage characteristics of thermal conductivity.Through drilling verification,the top and bottom temperatures of the thermal reservoir were obtained by temperature logging.The estimated geothermal resource reserve of 171.17×10^(16) J is equivalent to the standard coal 58.48×106 t.The pumping test results of the thermal reservoir indicated weak water abundance,small water inflow,and roughly low water outlet temperature for heat loss.Therefore,a single well has no mining or utilization value.However,this does not mean that the limestone thermal storage of the Group A coal floor in the entire Liuzhuang mining area has no mining or utilization value.Future studies should identify the water-bearing characteristics of the thermal storage layer,providing a basis for eliminating the impact of water and thermal hazards in mining areas and achieving thermal coal co-mining.

关 键 词：地热资源 热储层 煤层底板灰岩 煤热共采 

分 类 号：P641.461[天文地球—地质矿产勘探] P314.3[天文地球—地质学]