Results 11 to 20 of about 344 (154)

Induced Seismicity and Detailed Fracture Mapping as Tools for Evaluating HDR Reservoir Volume

open access: yesEnergies, 2021
The main goal of this paper was to estimate the heat exchange rock mass volume of a hot dry rock (HDR) geothermal reservoir based on microseismicity location. There are two types of recorded microseismicity: induced by flowing fluid (wet microseismicity)
Elżbieta Węglińska, Andrzej Leśniak
doaj   +1 more source

The first power generation test of hot dry rock resources exploration and production demonstration project in the Gonghe Basin, Qinghai Province, China

open access: yesChina Geology, 2022
Hot dry rock (HDR) is a kind of clean energy with significant potential. Since the 1970s, the United States, Japan, France, Australia, and other countries have attempted to conduct several HDR development research projects to extract thermal energy by ...
Er-yong Zhang   +41 more
doaj   +1 more source

Heat Generation and Accumulation for Hot Dry Rock Resources in the Igneous Rock Distribution Areas of Southeastern China

open access: yesLithosphere, 2022
Hot dry rock (HDR) is an important geothermal resource and the primary direction of future geothermal development. Granite is particularly rich in radiogenic heat-generating elements (e.g., U, Th, and K) and is thus the main target for HDR development ...
Wenjing Lin   +5 more
doaj   +1 more source

Numerical Simulation of Hot Dry Rock Fracture Monitoring by Time-Lapse Magnetotelluric Method

open access: yesEnergies, 2022
The spatial distribution of rock fractures during water injection in hot dry rock (HDR) geothermal is essential information for evaluating geothermal well fracturing. The rock fractures produce anisotropic electrical characteristics, which may facilitate
Lige Bai, Jing Li, Zhaofa Zeng
doaj   +1 more source

Temperature-dependent factors on hydraulic fracturing of hot dry rock (HDR): An experimental investigation

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
AbstractHot dry rock (HDR) is rich in geothermal energy and renewable and does not cause pollution; therefore, it has attracted considerable research attention. Previous studies have extensively discussed the process of HDR hydraulic fracturing based on the crack initiation mechanism, initiation pressure, and crack propagation law.
Tubing Yin   +4 more
openaire   +1 more source

Joint interpretation technology of favorable HDR geothermal resource exploration in Northern Songliao Basin

open access: yesUnconventional Resources, 2022
Hot dry rock (HDR) is considered a new clean and renewable energy source. China is rich in HDR resources, but viable and reliable resource evaluation techniques and exploration methods have not been available yet. This research method, consisting of deep
Xia Hu   +6 more
doaj   +1 more source

Effects of CO2 thermal properties and local fracture heterogeneity on heat transfer by supercritical CO2 flowing through fractured granite

open access: yesEnergy Reports, 2021
The exploitation of hot dry rock (HDR) based on supercritical CO2 (SCCO2) is an effective solution to the global energy crisis and climate change. The changes in the thermal properties of SCCO2 and rocks induced by high temperatures (pressures) have ...
Pan Li   +3 more
doaj   +1 more source

Economic Predictions for Heat Mining: A Review and Analysis of Hot Dry Rock (HDR) Geothermal Energy Technology [PDF]

open access: yes, 1990
The main objectives of this study were first, to review and analyze several economic assessments of Hot Dry Rock (HDR) geothermal energy systems, and second, to reformulate an economic model for HDR with revised cost components. The economic models reviewed include the following studies sponsored by Electric Power Research Institute (EPRI)-Cummings and
Tester, Jefferson W., Herzog, Howard J.
openaire   +2 more sources

Modeling wellbore instability in hot dry rock under various temperature conditions

open access: yesUnconventional Resources, 2023
Hot Dry Rock (HDR) is a renewable energy source that has garnered attention due to its abundant reserves, widespread distribution, and consistent energy supply.
Yu Suo   +4 more
doaj   +1 more source

Preliminary assessment of the efficiency of ORC plant operation supplied with hot water from the HDR system

open access: yesE3S Web of Conferences, 2018
The paper presents the results of a theoretical analysis of the low-temperature ORC power plant operation fed with hot water obtained in a hot dry rock (HDR) extraction system.
Kaczmarek Radomir, Stachel Aleksander
doaj   +1 more source

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