Special Issue "Seismic Exploration and Geothermal Energy"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy".

Deadline for manuscript submissions: 31 March 2021.

Special Issue Editor

Prof. Jun Matsushima
Website
Guest Editor
Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, Japan
Interests: Seismic exploration; Rock physics; Gas hydrates; Geothermal energy; Energy Return on Energy Investment
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Special Issue Information

Dear Colleagues,

Advancements in technology for acquiring high-quality seismic exploration data through 3D land seismic, vertical seismic profiling (VSP), sonic logging surveys allow seismic wave properties to be measured over a broad frequency range in geothermal reservoirs. In parallel with advancements in these data acquisition technologies, robust data processing methods have been developed to identify and characterize the fracture/fault systems and hydrothermal systems. The quality of seismic exploration data obtained in geothermal areas is poor due to rock heterogeneities, reverberations of near-surface direct waves, and high seismic wave attenuation due to the presence of gas or hot material. To reduce the drilling risk and costs, further development is needed in various topics including seismic data acquisition, data analysis, simulation of seismic wave propagation, laboratory measurements, and rock physics modeling. This special issue provides an opportunity for further discussion of benefits and challenges of seismic exploration in geothermal areas. We welcome submissions from a wide range of contributors in any area of geothermal seismic exploration.

Prof. Jun Matsushima
Guest Editor

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Keywords

  • seismic exploration
  • geothermal reservoir
  • fracture/fault system
  • hydrothermal system

Published Papers (1 paper)

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Research

Open AccessArticle
Magmatic Geothermal Genesis Model in the Huailai Area Based on the Constraints of the Crust–Mantle-Scale Geoelectric Structure
Appl. Sci. 2021, 11(5), 2086; https://doi.org/10.3390/app11052086 (registering DOI) - 26 Feb 2021
Abstract
The Huailai area is rich in geothermal resources, but the formation mechanism of its deep heat source is still unclear. In this paper, based on 16 broadband magnetotelluric sounding points, the two-dimensional electrical structure of the crust and mantle in the Huailai area [...] Read more.
The Huailai area is rich in geothermal resources, but the formation mechanism of its deep heat source is still unclear. In this paper, based on 16 broadband magnetotelluric sounding points, the two-dimensional electrical structure of the crust and mantle in the Huailai area was obtained. Combined with deep seismic reflection and P-wave seismic tomography, the geophysical characteristics of deep heat sources and reservoirs in the Huailai area are described. The Huailai area is characterized by low resistivity and layered reflection above 2 km in depth, which shows the distribution of the Cenozoic sedimentary cover layer. The upper crust is characterized by high resistivity without an obvious reflector, corresponding to the crystalline basement of the basin, whose main lithology is Archean gneiss. There is a highly conductive and bright-spot-reflective structure under the basement, which extends to 100 km, indicating the upwelling of mantle-derived material. Combined with the results of helium isotope tracing, a magma-type geothermal model in the Huailai area is proposed. The upwelling mantle-derived magma material is enriched under the basement to form a heat source. The heat is transferred to the upper crust through heat conduction along the crystalline basement. Then, groundwater circulation brings deep heat to the surface, forming hydrothermal resources. Full article
(This article belongs to the Special Issue Seismic Exploration and Geothermal Energy)
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