重、磁、电在地热勘查中的应用

Application of Gravity,Magnetism and Electricity in Geothermal Prospecting

物探是地热资源前期勘探过程中必备的手段,人们通过物探可以了解勘查区的地质构造、含水性、地热资源存在的可能性,为其开发提供依据。但由于物探方法存在多解性,一般单一的方法很难对勘查区的情况进行全面、准确的定位,所以当前地热勘查多采用几种物探方法,互相验证,以取得更好的效果。其中,重力、磁法和CSAMT法应用较广,三种方法的综合应用,为地热钻探孔位布置提供了依据。因此,本文通过实例分析了这三种方法在地热资源勘查中的应用。

Geophysical prospecting is an essential means in the early exploration of geothermal resources. People can understand the geological structure, the possibility of water bearing and geothermal resources in the exploration area by geophysical prospecting, and provide the basis for their development. But because the geophysical method has multi solutions, it is very difficult for the general method of single positioning comprehensive and accurate on the exploration area, so the current geothermal exploration by several geophysical prospecting methods, mutual authentication, to achieve better results. Among them, gravity, magnetic and CSAMT methods are widely used, and the comprehensive application of the three methods provides the basis for borehole location of geothermal drilling. Therefore, this paper analyzes the application of these three methods in geothermal resources exploration.