Results 31 to 40 of about 804 (168)

From Points to Planes: A Workflow for Converting Three‐Dimensional Point Cloud Data Into Discrete Fracture Network Flow and Transport Models

Water Resources Research, Volume 62, Issue 4, April 2026.
Abstract We present the Point cLoud Algorithm for NEtwork Extraction of Discrete Fracture Networks (PLANE‐DFN), a point cloud–based algorithm for automatic fracture network extraction designed to support discrete fracture network (DFN) modeling workflows. PLANE‐DFN segments three‐dimensional fracture planes from raw point cloud data using RANdom SAmple
Collin R. Sutton, Jeffrey D. Hyman, Aleksandra A. Pachalieva, Christopher Zahasky   +3 more
wiley   +1 more source

Repurposing of hydrocarbon wells for Enhanced Geothermal System (EGS) development [PDF]

Geothermics
The Groß Schönebeck research platform represents a case study for the reuse of the abandoned hydrocarbon well E GrSk 3/90. A detailed description of well selection criteria, subsurface conditions, and well modification procedures is presented as a workflow for the repurposing of hydrocarbon well as an injection well for an EGS development.
Lingkan Finna Christi, Ingo Sass, Ben Norden, Guido Blöcher, Günter Zimmermann, Hannes Hofmann   +5 more
openaire   +2 more sources

A hybrid optimisation approach to improve long-term performance of enhanced geothermal system (EGS) reservoirs [PDF]

, 2019
Improving the long-term performance of deep geothermal reservoirs, as an energy source, can lead to a significant increase in efficiency of heat extractions from these assets.
Samin, Maleaha, Jefferson, Ian; id_orcid, Faramarzi, Asaad; id_orcid, Harireche, Ouahid   +3 more
core   +1 more source

Theoretical Maximum and Cumulative Seismic Moment Relationships Confirm that Injection Volume Controls the Occurrence Rate, But Not the Magnitude, of Induced Earthquakes

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Classical relationships between cumulative and maximum seismic moment, based on the Gutenberg‐Richter law, shows a non‐physical anomaly for low b‐values. We here derive new relationships, including a low and a high b‐value approximation.
L. De Barros, D. Marsan
wiley   +1 more source

Mechanical property variation mechanisms of granite subjected to real‐time high temperatures and subsequent cooling treatment

Deep Underground Science and Engineering, Volume 5, Issue 1, Page 277-295, March 2026.
This study investigates the coupled thermo‐mechanical behavior of granite during heating and cooling through a combination of laboratory tests and finite element analysis. The thermal conductivity, mineral composition, mass loss rate, micro‐crack observation, and thermal fracture characteristics of granite under various temperature conditions are ...
Rui Pang, Dehao Meng, Thomas Frühwirt, Hao Liu, Yanan Zhao, Qingyou Zhu, Wengang Dang, Mohamed Ismael, Fei Wang   +8 more
wiley   +1 more source

Hydraulische Stimulationskonzepte zur Entwicklung von Enhanced Geothermal Systems (EGS) [PDF]

, 2014
System Erde ...
Zimmermann, G., Blöcher, G., Reinicke, A., Deon, F., Regenspurg, S., Yoon, J., Zang, A., Heidbach, O., Moeck, I., Huenges, E.   +9 more
openaire   +2 more sources

Heat Extraction Analysis of Multi-Stage Hydraulic Fracturing Doublet Horizontal EGS Wells

, 2020
Enhanced Geothermal System (EGS) are developed using various stimulation technologies to improve the production of heat energy from hot dry rock (HDR) that has ultra-low permeability.
Archer, Rosalind, Yu, Pengliang, Dempsey, David   +2 more
core  

Fault Stability Assessment in Tectonically Active Geothermal Fields Through Integrated Stress Analysis

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.
Abstract The Tulu Moye geothermal field in the actively deforming Main Ethiopian Rift presents substantial potential for renewable energy production, where interactions between fault systems, hydrothermal fluids, and tectonic activity require careful management for sustainable development. Here we present a first‐order assessment of fault stability and
Roberto Emanuele Rizzo, Derek Keir, Ameha Muluneh, Snorri Guðbrandsson, David Healy, Federico Sani, Giacomo Corti, Paola Vannucchi   +7 more
wiley   +1 more source

Geological and drilling aspects of construction and exploitation geothermal systems HDR/EGS

, 2015
The article presents an overview of developing unconventional geothermal systems, such as Hot Dry Rock Systems (HDR), where is used the heat of dry rock and enhanced system with smali water tributary called Enhanced Geothermal Systems (EGS).
Bieda, Anna, Anna Bieda, Śliwa, Tomasz, Aneta Sapińska-Śliwa, Tomasz Śliwa, Gonet, Andrzej, Dariusz Knez, Andrzej Gonet, Knez, Dariusz, Kowalski, Tomasz, Tomasz Kowalski, Sapińska-Śliwa, Aneta   +11 more
core   +2 more sources

Sequential Fracture Activation and Stress Evolution During EGS Stimulation at Utah FORGE Revealed by Waveform Cross‐Correlation

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Mapping fracture networks in Enhanced Geothermal Systems (EGS) is essential for optimizing reservoir performance, yet complex fracture evolution during stimulation remains difficult to resolve. This study examines the evolution of microseismicity and fracture networks during stage 3 of the 2022 EGS stimulation at the Utah Frontier Observatory ...
Richard Asirifi, Xiaowei Chen, Ahmad Mohammadi, Nori Nakata, Pranshu Ratre   +4 more
wiley   +1 more source