The feasibility of clean power generation from a novel dual-vertical-well enhanced geothermal system (EGS): A case study in the Gonghe Basin, China

Zhong, Chenghao; Xu, Tianfu; Yuan, Yilong; Feng, Bo; Han, Yingbo

doi:10.1016/j.jclepro.2022.131109

Cited by 43 publications

(12 citation statements)

References 37 publications

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“…Compared with wind and solar energy, geothermal energy is a safe and reliable green energy resource that is not affected by seasonal, climatic, and geographical factors. 20 When exploited appropriately, geothermal energy can reduce the reliance on traditional fossil fuels and aid in the achievement of China's “double carbon” goal (carbon peaking by 2030 and carbon neutrality by 2060). Nevertheless, China is currently facing bottlenecks in key technologies for geothermal energy exploration and development.…”

Section: Discussionmentioning

confidence: 99%

“…Unlike hydrothermal geothermal resources, hot dry rock is a high-temperature rock layer with no internal fluids or only a small amount of underground fluids (dense and impermeable water). 19 – 21 Due to the lack of fluid and its deep burial depth, heat exchange can be achieved only through ultra-long buried pipes. This process requires not only horizontal drilling, fracturing technology, and new efficient heat transfer materials, but also considerations for the heat loss during ultra-long distance underground transport.…”

Section: Characteristics Of Geothermal Energymentioning

confidence: 99%

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Application of well logging technology in geothermal resource evaluation: A case study of geothermal water wells in the Qianjiang sag, Jianghan Basin

Shi

Huang

et al. 2023

Science Progress

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Geothermal resources are green and environmentally friendly renewable energy. An accurate evaluation of geothermal resources will help subsequent efficient exploitation. However, to save costs and improve efficiency, core-free drilling and without mud logging are adopted in the actual exploration, which results in an inability to directly obtain the relevant evaluation parameters of a geothermal reservoir for exploration and evaluation. Well logging technology can effectively delineate the geothermal reservoir and determine the location of the major aquifer, while also allowing for the accurate measurement of key reservoir evaluation parameters, such as the shale content, porosity, and well temperature. Moreover, coupled with the calculated logging parameters, a volumetric method can be used to determine the regional geothermal reserves. This research takes the geothermal wells of the Guanghuasi Formation in the Qianjiang sag, Jianghan Basin as an example to conduct the application research. The findings can be of reference for similar geothermal wells in China and facilitate the development of “carbon neutrality.”

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Section: Discussionmentioning

confidence: 99%

Section: Characteristics Of Geothermal Energymentioning

confidence: 99%

Application of well logging technology in geothermal resource evaluation: A case study of geothermal water wells in the Qianjiang sag, Jianghan Basin

Shi

Huang

et al. 2023

Science Progress

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“…In this study, based on available geological data, an advanced geothermal system with a vertical well was investigated to investigate the potential for clean electricity production. The feasibility of power generation at depths between 2900 m and 3300 m was reasonably predicted over 30 years at a production rate of 40 kg/s [21].…”

Section: Introductionmentioning

confidence: 93%

Application of PCM in a Zero-Energy Building and Using a CCHP System Based on Geothermal Energy in Canada and the UAE

Assareh,

Keykhah,

Hoseinzadeh

et al. 2024

Buildings

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In this research, the optimization of energy consumption of zero-energy buildings using PCMs in the two study cities of Vancouver and Dubai and its energy supply with a multi-generation geothermal system is discussed. PCMs used in the walls and roofs of designed buildings are of two types, namely PCM (solid) and PCM (liquid). By optimizing the energy consumption of the residential complex in two study cities, it is finally possible to choose the best mode in optimal conditions to reduce energy consumption in the residential complex, reduce the costs of the residential complex, and reduce the environmental pollution. The results showed that the amount of electricity consumption, heating, and cooling of the residential complex during the year in the city of Vancouver is 8493.55, 7899.1, and 1083.97 kWh, respectively, and in the city of Dubai, the values are 9572.1, 8.99, and 18,845.44 kW, respectively. Also, by optimizing the energy consumption of residential complexes in Vancouver and Dubai, it is possible to reduce CO2 emissions by 2129.7 and 2773.2 kg/year, respectively. The electricity consumption of the residential complex in Dubai is 11.26% and the carbon dioxide emission is 23.20% more. In the end, a multi-generation system is proposed to meet the energy consumption of a six-unit zero-energy residential complex with 120 m2 and two bedrooms in Vancouver, Canada. By setting up the study system in the city of Vancouver, 237,364.6 kWh of electricity, 425,959.4 kWh of heating, and 304,732.8 kWh of electricity can be produced in one year. According to the investigation, the geothermal system can easily provide the energy consumption required by residential buildings.

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“…By the end of 2020, the total area of geothermal energy heating and cooling in China reached 1.39 billion square meters, reducing 108 million tons of carbon dioxide per year [53]. Due to difficulties in key technology improvement, however, its cost is higher compared with wind and solar power, resulting in slower growth [54]. The installed capacity of geothermal power in China is about 26 MW in 2019, which accounts for little in the total power system.…”

Section: Othersmentioning

confidence: 99%

A Review on Renewable Energy Transition under China’s Carbon Neutrality Target

et al. 2022

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To achieve their carbon peak and carbon neutrality target, China’s energy transition is seen as the most important instrument. Despite the rapid growth of renewable energy in China, there are still many challenges. Based on the review of the contemporary literature, this paper seeks to present an updated depiction of renewable energy in the Chinese context. The potential, status quo, and related policy of China’s renewable energy are thoroughly investigated. The challenges facing renewable energy development under the carbon neutrality target are analyzed, including enormous transition urgency and pressure, technology, and policy issues. Then, coping strategies are proposed to guide the direction of renewable energy development. Technology paths and policy recommendations are presented. This paper contributes to technology developing and policymaking by providing a comprehensive, thorough, and reliable review of renewable energy development in China.

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The feasibility of clean power generation from a novel dual-vertical-well enhanced geothermal system (EGS): A case study in the Gonghe Basin, China

Cited by 43 publications

References 37 publications

Application of well logging technology in geothermal resource evaluation: A case study of geothermal water wells in the Qianjiang sag, Jianghan Basin

Application of well logging technology in geothermal resource evaluation: A case study of geothermal water wells in the Qianjiang sag, Jianghan Basin

Application of PCM in a Zero-Energy Building and Using a CCHP System Based on Geothermal Energy in Canada and the UAE

A Review on Renewable Energy Transition under China’s Carbon Neutrality Target

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