摘要
湖北省厦铺—杨芳林地热田为钻孔揭露的一处中深层隐伏型地热田。该地热田位于杨芳林背斜轴部,奥陶系上统黄泥岗组—中-上统宝塔组灰岩、中统宁国组砂岩及下统留咀桥组灰岩构成热储层,上覆志留系泥质粉砂岩及页岩为热储盖层,为自然增温的低温传导型地热。在地热地质条件、地热流体化学特征分析基础上,结合最新物探、钻孔岩性与测温数据,从“源、通、储、盖”方面探讨地热田成因模式。研究认为该地热田具远源补给、深层循环、裂隙赋水、盖层聚热的特点。尝试建立了地热田概念模型,可为该地热田合理开发利用及进一步勘查提供科学依据。
The Xiapu-Yangfanglin geothermal field in Hubei Province is a medium-deep concealed geothermal field revealed by drilling.The geothermal field is located in the axis of the Yangfanglin anticline.The limestone of the Upper Ordovician Huangnigang Formation to Middle-Upper Ordovician Baota Formation,the sandstone of the Middle Ordovician Ningguo Formation and the limestone of the Lower Ordovician Liuzuiqiao Formation constitute the thermal reservoir.The overlying Silurian argillaceous siltstone and shale constitute are the cap rocks of the thermal reservoir.This geothermal field is low-temperature conduction geothermal with natural warming.Based on the analysis of geothermal geological conditions and geothermal fluid characteristics,combined with the latest geophysical prospecting,borehole lithology and temperature measurement data,the genetic model of geothermal field is discussed from the aspects of“source,passage,reservoir and cover”.The study suggests that the geothermal field has the characteristics of far-source recharge,deep circulation,fissure water and cap rock heat accumulation.The conceptual model of geothermal field is established,which can provide scientific basis for the rational development and utilization of geothermal field and further exploration.
作者
李强
石德强
肖友发
徐江嬿
赵子良
洪标
Li Qiang;Shi Deqiang;Xiao Youfa;Xu Jiangyan;Zhao Ziliang;Hong Biao(Fourth Geological Brigade of Hubei Geological Bureau,Xianning,Hubei 437100;Hubei Administration Center of Geological Exploration Funds,Wuhan,Hubei 430071)
出处
《资源环境与工程》
2023年第1期57-64,共8页
Resources Environment & Engineering
基金
湖北省通山县厦铺—杨芳林地热资源预可行性勘查([2020]27)
湖北省中深层地热聚敛成藏条件与勘查技术研究(KJ2021-14)。
关键词
地热
隐伏型地热田
赋存特征
成因模式
咸宁
geothermal
concealed geothermal field
occurrence characteristics
genetic model
Xianning
