电力勘测设计Issue(7)：52-57,6.DOI:10.13500/j.dlkcsj.issn1671-9913.2024.07.011
广域电磁法在长平盆地白垩系地层地热资源评价中应用
Wide Field Electromagnetic Method is Applied in the Evaluation of Cretaceous Stratigraphic Geothermal Resources in Changping Basin
韦启珍 1屈利军2
作者信息
- 1. 中国能源建设集团湖南省电力设计院有限公司,湖南 长沙 410007
- 2. 湖南省地球物理地球化学调查所,湖南 长沙 410014
- 折叠
摘要
Abstract
The working area is located in the underground Cretaceous formation of Changping Basin,and the wide-area electromagnetic method is used for the first time to detect the stratigraphic structure and tectonic development within 3km of the middle and deep part,and the geothermal resources in the scope area are preliminarily evaluated.The results are mainly reflected in:①the cover layer is argillaceous sandstone in the middle section of Daijiaping of the Cretaceous system,and the burial depth is-210～-300 m;The lower section is a huge thick layer of massive granite conglomerate,buried at a depth of-800～-1 050 m.The upper section of the Cretaceous Lower Shenhuangshan Formation,buried at a depth of-1 200～-1 420 m.②The heat storage layer is the lower section of the Shenhuangshan Formation of the Cretaceous Lower System,containing gray conglomerate and calcium argillaceous cementation,burial depth-1 550～-1 700 m.The bottom of the sedimentary basin is the slate of the Lengjiaxi Group,and the burial depth is-1 800～-2 030 m.③Redetermine the plane position of F10 and F12 faults.④This area has a good geothermal cover layer,and the whole set of Cretaceous strata is red clastic rock,with poor water content and large thickness,and geothermal resources have better preservation conditions and potential for geothermal development.关键词
广域电磁法/地热资源/热储层/断层Key words
wide field electromagnetic method/geothermal resources/thermal reservoirs/fault分类
测绘与仪器引用本文复制引用
韦启珍,屈利军..广域电磁法在长平盆地白垩系地层地热资源评价中应用[J].电力勘测设计,2024,(7):52-57,6.
