| 苏海伦,李荣亮,李永恒.广域电磁测量和微动测量在陇南复杂山区地热资源勘查中的应用研究[J].甘肃地质,2024,(3):77-83 |
| 广域电磁测量和微动测量在陇南复杂山区地热资源勘查中的应用研究 |
| Wide Field Electromagnetic ａnd Micro Motion Survey ｏf Geothermal Resources ｉn Longnan Mountain Area |
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| DOI： |
| 中文关键词: 地热勘查 广域电磁测量 微动测量 陇南山区 |
| 英文关键词:geothermal exploration wide field electromagnetic method（WFEM） micro motion measurement Longnan Mountain Area |
| 基金项目: |
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| 摘要点击次数: 4 |
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| 中文摘要: |
| 复杂地质条件下地热勘查工作是当前亟待解决的技术难题。研究区位于甘肃省陇南市武都区城郊，构造复杂，地形切割强烈，人文干扰严重，常规物探方法很难取得理想的勘查效果，因此地热勘查开发程度总体偏低。本次研究采用广域电磁测量和微动测量技术相结合，基本查明了研究区地质构造和地下水赋存特征，深入研究了深部热储层、盖层特征、导水和控热构造，为合理布置探采结合孔提供了物探依据，最终获得井口水温48 ℃、出水量 |
| 英文摘要: |
| Geothermal exploration work under complex geological conditions is currently an urgent technical problem to be solved. The research area is located in the suburbs of Wudu District, Longnan City, Gansu Province. The structure is complex, the terrain is strongly cut, and human interference is severe. Conventional geophysical methods are difficult to carry out, making it difficult to achieve ideal exploration results. Therefore, the overall level of geothermal exploration and development is relatively low. This study used a combination of wide area electromagnetic measurement and micro motion measurement technology to basically identify the geological structure and groundwater occurrence characteristics of the study area. In depth research was conducted on the deep thermal reservoir, cap rock characteristics, water conductivity and heat control structures, providing geophysical basis for the reasonable arrangement of exploration and production combined holes. Finally, a groundwater hot water with a wellhead water temperature of 48 ℃ and a water output of 2 000 m3／d was obtained. Through this study, it is believed that the anti-interference technology method based on "wide area electromagnetic method + micro motion detection" can achieve good application results in the exploration of deep geothermal fields in complex geological conditions, urban human activities, and strong electromagnetic interference environments. |
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