| 程立群,李云玲,邱若峰,王文斌,乔树敏,徐一鸣,王坤.冀东中低温对流型地热资源特征及热储模型研究[J].矿产勘查,2026,17(3):512-521 |
| 冀东中低温对流型地热资源特征及热储模型研究 |
| Study on the characteristics of geothermal resources and geothermal reservoir model of convection type in eastern Hebei |
| 投稿时间:2025-11-18 |
| DOI:10.20008/j.kckc.202603008 |
| 中文关键词: 中低温对流型地热系统 热储结构 热储模型 冀东 |
| 英文关键词: low-medium temperature convective geothermal system geothermal reservoir structure geother-mal reservoir model eastern Hebei Province |
| 基金项目:本文受河北省地矿局2019年度水工环海专项预算项目(454-0503-YBN-V0U2)资助。 |
| 作者 | 单位 | | 程立群 | 河北宝地建设工程有限公司,河北秦皇岛 066000 河北省地质矿产勘查开发局第八地质大队,河北秦皇岛 066000 | | 李云玲 | 河北宝地建设工程有限公司,河北秦皇岛 066000 | | 邱若峰 | 河北省地质矿产勘查开发局第八地质大队,河北秦皇岛 066000 | | 王文斌 | 河北地矿集团有限公司,河北石家庄 050023 | | 乔树敏 | 秦皇岛兴龙建设工程有限公司,河北秦皇岛 066000 | | 徐一鸣 | 河北宝地建设工程有限公司,河北秦皇岛 066000 河北省地质矿产勘查开发局第八地质大队,河北秦皇岛 066000 中国地质大学北京水资源与环境学院,北京 100083 | | 王坤 | 河北宝地建设工程有限公司,河北秦皇岛 066000 |
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| 中文摘要: |
| 冀东地区地热资源丰富,尤以中低温对流型地热系统广泛分布。本文基于区内 8处典型地热异常区的水文地质调查、地球物理勘探、水化学分析与同位素测试等综合勘查成果,系统研究了冀东中低温对流型地热系统的热储结构特征及各子系统间的耦合关系。研究结果表明,地热异常区主要分布于太古宙变质岩与侏罗纪花岗质侵入岩接触带附近的构造交汇部位。地热水温度为 27.9~54.9 ℃,水化学类型以 SO4-Na型为主,热水来源于大气降水,循环深度 2500~3600 m。热储系统可划分为 5个子系统:补给系统(水源)、生热系统(热源)、运移系统(通道)、储集系统(热储)和保温系统(盖层)。其中,保温系统普遍缺失或保温效应较弱;储集系统呈上宽下窄的碗状结构,厚度可达数百米;运移系统上部呈圆柱状,下部渐变为圆锥状,埋深介于数百米至数千米;生热系统埋深最大,热源主要来自地壳深部及地幔热流。整体热储结构呈现典型的“树”状三维空间架构。 |
| 英文摘要: |
| The eastern Hebei region is rich in geothermal resources, with medium-low temperature convectivegeothermal systems being widely distributed. Based on comprehensive exploration results—including hydrogeologi-cal surveys, geophysical exploration, hydrochemical analyses, and isotope tests from eight typical geothermalanomaly areas in the region—this study systematically investigates the geothermal reservoir structure and the cou-pling relationships among subsystems within the medium-low temperature convective geothermal system in easternHebei. The results show that the geothermal anomalies are mainly distributed at structural intersections near thecontact zone between Archean metamorphic rocks and Jurassic granitic intrusions. The temperature of the geother-mal water ranges from 27.9 ℃ to 54.9 ℃, and the hydrochemical type is predominantly SO4-Na. The geothermal wa-ter originates from atmospheric precipitation and circulates at depths between 2500 m and 3600 m. The thermal res-ervoir system can be divided into five subsystems: the recharge system (water source), the heat generation system(heat source), the migration system (channel), the storage system (thermal reservoir), and the insulation system (cap-rock). Among these, the insulation system is generally absent or exhibits weak thermal preservation effects; the res-ervoir system displays a bowl-shaped structure that is wide at the top and narrow at the bottom, with a thickness ofup to several hundred meters; the upper part of the migration system is cylindrical, transitioning to a conical shapein the lower part, and its burial depth ranges from several hundred to several thousand meters; the heat generationsystem is buried at the greatest depth, with its heat source derived mainly from deep crustal and mantle heat flow.The overall geothermal reservoir structure exhibits a typical "tree-like" three-dimensional spatial configuration. |
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