摘要
为推进碳达峰碳中和目标,亟需加强贵州深埋复杂地质条件下地热资源的勘查研究,填补技术空白并降低开发风险,以支撑清洁能源体系构建和能源结构转型。文章提出“物探+地质”组合约束法,一是系统研究岩性(层)及地热资源“生、储、盖、运”等地质单元特征,基于测井大数据分析岩性(层)纵、横向视电阻率参数特征,建立地质-地球物理特征模型;二是在建立模型的基础上,优选有效的物探方法对与之相关的地质单元进行探测,以“物探+地质”组合约束的方法解决压制识别干扰与伪信号、约束多解性等问题,对隐伏地质结构及储热地质环境特征的精细化识别效果好,修正完善地质推测更客观地反映地质实际。该方法应用于贵州兴义地区近10个地热水勘查项目,推测隐伏地质单元与钻探揭露情况吻合,每口井涌水量均大于340m^(3)·d^(-1),井口水温均大于42℃。
To advance the carbon peaking and carbon neutrality goals,it is imperative to enhance geothermal resource exploration based on Guizhou’s deep-buried complex geological conditions,addressing technological gaps and mitigating development risks to support clean energy system construction and energy transition.This study proposes a“geophysical-geological integrated constraint method”by:1)Systematically investigating lithology and geothermal system characteristics(generation,storage,cap,and migration units)through logging big data analysis of vertical and lateral apparent resistivity parameters,establishing a geological-geophysical characteristic model;2)Optimizing geophysical methods based on the model to detect related geological units,resolving interference suppression,pseudo-signal recognition,and multi-solution constraints.This approach enables refined identification of concealed geological structures and geothermal reservoir environments while objectively revising geological inferences.Applied to nearly ten geothermal exploration projects in Xingyi,Guizhou,the method demonstrated high consistency between inferred concealed geological units and drilling results,with all wells yielding>340 m^(3)/d discharge and>42℃ outlet water temperature.
作者
徐再军
黄启霖
XU Zaijun;HUANG Qilin(Guizhou Provincial Bureau of Geology and Mineral Resources Geophysical and Geochemical Exploration Institute,Guiyang,550018,Guizhou,China)
出处
《城市地质》
2025年第2期259-268,共10页
Urban Geology
基金
基于地球物理技术预测黔西南纳板穹窿带干热岩资源成矿远景区研究(黔科合支撑[2023]一般166)
黔西南州干热岩资源成矿预测与远景区研究(2022-1-29)
黔西南州卡林型金矿成矿与找矿科技创新人才团队建设(2023-1-12)联合资助。
关键词
组合约束法
精细化探测
深部地热资源
贵州
combination constraint method
refined detection
deep geothermal resources
Guizhou
