山东国土资源2026，Vol.42Issue(9)：27-39,13.DOI:10.12128/j.issn.1672-6979.2026.09.004
山东省滕州地热田流体化学特性及潜力评价
Study on Chemical Characteristics and Recharge Conditions of Geothermal Fluid and Evaluation of Its Development Potential in the Ordovician Geothermal Reservoir of Tengzhou Geothermal Field in Shandong Province
摘要
Abstract
Tengzhou geothermal field is a stratified thermal reservoir type field,characterized by an upper fissure-karst and a lower karst-fissure thermal reservoir structure.The thermal reservoir layers are pri-marily developed in the karst sections of Cambrian and Ordovician limestone and dolomite.Ordovician limestone karst zones are main thermal reservoir in the area.This geothermal field is located in central and eastern parts of Tengxian coalfield.It belongs to Tengzhou buried depression regionally.Its hydrogeologi-cal unit is Fengpei bedrock hydrogeological unit in Tengxian.It has the characteristics of water-blocking boundaries on three sides and localized weak lateral recharge on the remaining side.Groundwater recharge conditions are poor in this area.Runoff and discharge conditions are constrained,and groundwater ex-change is slow.The primary discharge mechanism is mine drainage.At present,a water level drop funnel for the bedrock aquifer has been formed with each mine as the center.The formation process and occur-rence environment of geothermal fluids are relatively complex.The Ordovician limestone aquifer(Ordovi-cian limestone water)has a long recharge and runoff path,poor water cycle alternation conditions,and a large depth of thermal fluid circulation.Ordovician limestone water is basically in a deep closed state.Its hydrochemical composition is more complex than that of general groundwater.High ion concentration,high sulfate content and high total dissolved solids(TDS)concentration are significant characteristics of Ordovician limestone water in this area.According to 14C dating results,the age of geothermal water in this area is about 33.54 ka,which belongs to ancient groundwater and is non renewable.Based on the dis-tribution characteristics of Cl-,SO42-ions and TDS content,and the analysis of regional geological struc-tures,it is inferred that main supply area of Ordovician limestone water in Tengzhou geothermal field is located in the shallow burial area of Ordovician limestone on the south side of Tengzhou anticline in the southwest region.It will provide a scientific basis for further development and utilization of Tengzhou geo-thermal field.关键词
滕州地热田/地热流体/奥灰水/水化学组分/开发潜力/山东省Key words
Tengzhou geothermal field/geothermal fluid/Ordovician limestone water/hydrochemical com-ponents/development potential/Shandong province分类
天文与地球科学引用本文复制引用
孔帅,冯堂武,种政,李建,马茹祥,姜彦勇,李佳佳,郝文杰,李洋,于树宾,孙文..山东省滕州地热田流体化学特性及潜力评价[J].山东国土资源,2026,42(9):27-39,13.基金项目
中国地质调查局地质大调查项目(华北典型地区地热资源监测网示范建设) （华北典型地区地热资源监测网示范建设）
山东省2023年部省协议地质勘查项目、山东省滕州地热田地热资源调查评价(鲁勘字[2023]35号) （鲁勘字[2023]35号）
