多种非震方法在山东齐河地热勘查中的应用

doi:10.11720/wtyht.2020.1413

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Abstract

Non-seismic methods have been proved to be effective in geothermal exploration.This paper describes a two-step method for investigating the geothermal potential in Fountain Village,Rongsheng,Qihe,Shandong Province.The geological background of the target area is very complicated;for instance,many complex faults are developed and the formations usually have strong horizontal anisotropic property,which enhances the difficulty of exploration.The two-step method put forward by the authors utilizes the electrical and elastic features in different formations to solve these difficulties.The first step is to investigate the location of huge fault structure and the depth of resources by using electromagnetic method,which can locate the water-rich regions.The second step focuses on the more precise features of faults based on microtremors method. This method can help locate the sweet spot area more accurately and bring constructive suggestions to well location determination.Drilling results have testified the feasibility and applicability of this two-step method,which opens up a new path in complex geothermal exploration.

Key words： CSAMT microtremors survey geothermal exploration Qihe in Shandong Province

Received: 02 September 2019 Published: 28 August 2020

P631.4

Corresponding Authors: Shao-Qiang SUI E-mail: zhanghui714@126.com;646101045@qq.com

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	Hui ZHANG
	Shao-Qiang SUI
	Luo-Ran QIAN
	Xin-Wei WANG

Cite this article:

Hui ZHANG,Shao-Qiang SUI,Luo-Ran QIAN, et al. The application of multiple non-seismic methods to geothermal exploration in Qihe, Shandong Province[J]. Geophysical and Geochemical Exploration, 2020, 44(4): 727-733.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2020.1413 OR https://www.wutanyuhuatan.com/EN/Y2020/V44/I4/727

A brief map of tectonic geology in Qihe area

The statistical table of stratigraphic physical properties in the study area

Inversion of resistivity profile and interpretation of CSAMT data for L11(left), L20(right)

Apparent resistivity section diagram and interpretation of vertical eectrical sounding data

Inversion of resistivity slice diagram and interpretation of CSAMT data

Inversion of cross-wave velocity profile and interpretation of microtremor detection data

Comprehensive geophysical interpretation results in the study area

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