综合物探技术在永定县箭滩矿区地热勘查中的作用

Application of Integrated Geophysical Prospecting Technology in Geothermal Resources Exploration in Jiantan Mine Area in Yongding County

摘要:

选择以地面磁测、视电阻率联合剖面和电测深等综合物探为主要探矿手段，结合地面浅层测温，初步查明矿区内地下热水体赋存部位和导、储热构造的分布范围、产状及温度变化情况。根据地质、物探特征，通过分析、对比，选择有利部位布置2个钻孔进行深部验证，在不同深度，分别打出了水温为57.96℃和58.37℃，出水量为968.45m3/d和2106.32m3/d的地下热水，取得了较好的找矿效果。

Abstract:

Selectting the ground magnetic survey, associated apparent resistivity sounding profile and the comprehensive geophysical prospecting as the main means, combining with shallow ground temperature, occurrence location of geothermal water, distribution scope, occurrence and temperature changes of geothermal reserve structure are identified initially. According to geological and geophysical characteristics, through analysis and comparison and selectting a favorable location, two holes are drilled in order to verify geothermal water in deep part. At different depths, the temperature of geothermal water are 57.96 ℃ and 58.37 ℃ , and the water amount are 968.45m3/d and 2106.32m3/d respectively. By using this method, better prospecting results have been achieved.