Investigation of geothermal resources using a geophysical potential field in the Hurghada area, Egypt

IF 0.6 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Exploration Geophysics Pub Date : 2023-11-10 DOI:10.1080/08123985.2023.2276403

Samah Elbarbary, Mohamed Abdel Zaher, Hossam Marzouk, Tarek Arafa-Hamed

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引用次数: 0

Abstract

AbstractEgypt's need for clean and renewable energy is pressing for numerous reasons, such as unpredictable fuel prices, diminishing fossil fuel resources, and growing concern about environmental degradation. Harvesting untapped geothermal resources could meet domestic electricity needs besides enabling Egypt to export electricity. The location of Egypt confirms that it has suitable geothermal energy potential areas in some provinces around the country, especially along the Gulf of Suez, the Red Sea, and the Western Desert. The Red Sea coast and the coasts of the Gulf of Suez exhibit several surface manifestations (hot springs and thermal water wells), indicating the presence of geothermal systems in these areas. The objective of this paper is to investigate the geothermal resources and obtain a full image of the geothermal potential of the Hurghada area along the Red Sea coast using geophysical potential ﬁeld data. Aeromagnetic and aerogravity data were used to identify the most promising target regions for geothermal potentiality. Power spectral analysis of the aeromagnetic data was utilised to appraise the Curie point depth (CPD) and obtain geothermal gradient and heat flow maps of the Hurghada area, whereas a 3-D inversion of gravity data was utilised to estimate the depths to the Precambrian basement rocks. In addition to 3-D inversion of magnetic data to evaluate the spatial distribution of magnetic susceptibility. This study found no direct relationship between basement depths and the CPD, where basement rock outcrops at some locations correlate to a decrease in the Curie surface, while at others, they correspond to an increase.KEYWORDS: aeromagneticaerogravityCurie point depthheat flowPrecambrian basement Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis research was mainly funded by the Science and Technology Development Fund (STDF) in Egypt via a Development & Innovation Grant titled “A Prospective Study of the Geothermal Potential in Egypt.” (Project ID: 43553).

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利用地球物理势场对埃及赫尔格达地区地热资源进行调查

埃及对清洁和可再生能源的需求非常迫切，原因有很多，比如不可预测的燃料价格、日益减少的化石燃料资源以及对环境恶化的日益担忧。开采未开发的地热资源可以满足埃及国内的电力需求，还可以出口电力。埃及的地理位置确定了它在全国一些省份拥有合适的地热潜力区域，特别是沿着苏伊士湾、红海和西部沙漠。红海沿岸和苏伊斯湾沿岸表现出几种地表现象(温泉和热水井)，表明这些地区存在地热系统。本文的目的是利用地球物理位场资料对红海沿岸赫尔格达地区的地热资源进行调查，并获得地热潜力的完整图像。利用航空磁和航空重力数据确定了最有希望的地热潜力目标区域。利用航磁数据的功率谱分析估算了赫尔格达地区的居里点深度(CPD)，获得了地热梯度和热流图，利用重力数据的三维反演估算了前寒武纪基底岩的深度。此外，还对磁资料进行三维反演，评价磁化率的空间分布。这项研究没有发现基底深度和CPD之间的直接关系，在一些地方基底岩石的露头与居里表面的减少有关，而在另一些地方，它们对应于增加。关键词:航空磁学航空重力居里点深度热流前寒武纪基底披露声明作者未报告潜在利益冲突。本研究主要由埃及科学技术发展基金(STDF)通过题为“埃及地热潜力的前瞻性研究”的发展与创新基金资助。(项目ID: 43553)。

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来源期刊

Exploration Geophysics 地学-地球化学与地球物理

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Exploration Geophysics is published on behalf of the Australian Society of Exploration Geophysicists (ASEG), Society of Exploration Geophysics of Japan (SEGJ), and Korean Society of Earth and Exploration Geophysicists (KSEG). The journal presents significant case histories, advances in data interpretation, and theoretical developments resulting from original research in exploration and applied geophysics. Papers that may have implications for field practice in Australia, even if they report work from other continents, will be welcome. ´Exploration and applied geophysics´ will be interpreted broadly by the editors, so that geotechnical and environmental studies are by no means precluded. Papers are expected to be of a high standard. Exploration Geophysics uses an international pool of reviewers drawn from industry and academic authorities as selected by the editorial panel. The journal provides a common meeting ground for geophysicists active in either field studies or basic research.