地质找矿论丛2025，Vol.40Issue(4)：474-482,9.DOI:10.6053/j.issn.1001-1412.2025.04.004
渤海湾盆地沧县隆起北部蓟县系雾迷山组热储地热流体化学特征
Chemical Characteristics of Geothermal Fluid in the JiXian System Wumishan Reservoir in the Northern Part of Cangxian Uplift,Bohai Bay Basin
摘要
Abstract
Aiming to study the chemical characteristics and runoff pattern of geothermal fluid in the Wumishan reservoir in the Cangxian Uplift area of the Bohai Bay Basin in eastern China,this paper systematically analyzed the hydrochemical data of geothermal fluids from 63 geothermal wells in the Wumishan reservoir within the study area.By adopting statistical analysis and comprehensive research methods,the paper obtained information on hydrochemical types,major ion concentrations,ion sources,and ion variation laws of the geothermal fluid in the Wumishan reservoir across different tectonic units in the study area.Additionally,it discussed the runoff direction and characteristics of the geothermal fluid in the Wumishan reservoir.The study concludes that the geothermal fluid originates from atmospheric precipitation in the northern mountainous areas;after in-filtration,it runs off southward and eastward.During the runoff process,the contents of Na⁺ and Cl⁻ increase gradually,and the Total Dissolved Solids(TDS)also increase progressively.The water-rock reaction process occurs continuously along side the runoff process,yet the degree of water-rock reaction equilibrium remains low,far from a balanced state.All boundary faults of the tectonic units are water-conducting faults,and the existence of these water-conducting faults and depression ar-eas does not alter the runoff direction of the geothermal fluid in the Wumishan reservoir.关键词
渤海湾盆地/地球化学/雾迷山组/地热流体/径流/天津Key words
Bohai Bay Basin/geochemistry/Wumishan Reservoir/geothermal fluid/runoff/Tianjin分类
天文与地球科学引用本文复制引用
阮传侠,刘志龙,邵炳松,董路飞,胡志明..渤海湾盆地沧县隆起北部蓟县系雾迷山组热储地热流体化学特征[J].地质找矿论丛,2025,40(4):474-482,9.基金项目
国家自然科学基金项目"雄安新区深部热储层多参数渗流-传热机理研究"(42272308)资助. （42272308）
