多种非震技术在沈北新区某工区地热勘查中的应用

The Application of various non-seismic Technologies in Geothermal Exploration of Shenbei New District Area

以沈北新区某工区地热资源勘查为例,基于重磁方法与可控源音频大地电磁法的综合应用,说明多种非震技术在热储空间分布及有利地热区预测方面的应用。充分考虑重磁方法对刻画平面异常的优势和电磁方法对显示剖面异常的优势,结合该区地质资料及邻区已有钻井数据,探测出了区内的构造和地层特征,为该区进一步开展地热勘探开发提供了重要依据。

Geothermal resources exploration in the Shenbei New District is viewed as an example to mainly explain the comprehensive application and effect of gravity and magnetic and controlled source audio-frequency magnetotelluricsounding which realized the distribution of thermal storage space and predicted the favorable geothermal area.The method makes full use of the advantages of gravity and magnetic to describe the plane abnormal and the advantages of controlled source audio-frequency magnetotelluric sounding to show the profile abnormal.Combining with the geology data and existing drilling data,the structural and stratigraphic characteristics of the area were detected,which provided an important basis for further geothermal exploration and development.