Results 71 to 80 of about 3,070 (220)

Particle transport in fractured geo-energy reservoirs considering the effect of fluid inertia and turbulent flow: A review

Journal of Rock Mechanics and Geotechnical Engineering
Particle-fluid two-phase flows in rock fractures and fracture networks play a pivotal role in determining the efficiency and effectiveness of hydraulic fracturing operations, a vital component in unconventional oil and gas extraction.
E.A.A.V. Edirisinghe, M.S.A. Perera, D. Elsworth, S.K. Matthai, E. Goudeli   +4 more
doaj   +1 more source

An Approach to Sustainable Hydrogen Generation From Stimulated Iron‐Rich Ultramafic Rock

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Iron‐rich rocks undergoing oxidation in the presence of water are promising sources of geologic hydrogen (H2). Yet, such reactions are often considered self‐limiting due to passivation and reduced permeability if volume expansion occurs. This study investigates hydrogen generation during a flow‐through experiment on fractured iron‐rich cores ...
Henry Galvis Silva, Abubakar Isah, Ainash Shabdirova, Fabian Carrascal, Esuru Rita Okoroafor   +4 more
wiley   +1 more source

Forchheimer Model for Non-Darcy Flow in Porous Media and Fractures [PDF]

, 2011
Imperial Users ...
Takhanov, Dastan, Takhanov, Dastan
core  

FLUJO Y DEPOSICIÓN DE DIFERENTES AGENTES DE SOSTÉN TRANSPORTADOS POR FLUIDOS EN UNA FRACTURA VERTICAL A ESCALA.

Anales (Asociación Física Argentina), 2022
Hydraulic fracturing is a technique used to stimulate the production of conventional and unconventional hydrocarbons, being this type of resource a strategic part of Argentina’s energy reserve. The procedure consists in injecting fluids at high pressure
C. Gracia, M. Baldini, M. E. Fernández
doaj  

UFM‐Based Simulation of Competitive Multi‐Fracture Propagation in Horizontal Wells

Energy Science &Engineering, Volume 13, Issue 12, Page 6069-6083, December 2025.
Simulation schematic of Competitive Multi‐Fracture Propagation in Horizontal Wells. ABSTRACT Multi‐stage hydraulic fracturing in horizontal wells is vital for stimulating unconventional reservoirs, yet uneven fracture propagation often restricts the effective communication volume of the reservoir.
Xiaojia Xue, Minghui Li, Yanjun Zhang, Shumin Shan, Jinqi Chu, Guopeng Huang, Guangbo Lu, Fujian Zhou   +7 more
wiley   +1 more source

Quantifying the anisotropy and tortuosity of permeable pathways in clay-rich mudstones using models based on X-ray tomography [PDF]

, 2017
The permeability of shales is important, because it controls where oil and gas resources can migrate to and where in the Earth hydrocarbons are ultimately stored.
Backeberg, Nils R, Day, Richard, Iacoviello, Francesco, Jones, Adrian P, Mitchell, Tom M, Rittner, Martin, Shearing, Paul R, Striolo, Alberto, Vermeesch, Pieter, Wheeler, John   +9 more
core   +2 more sources

The influence of fracturing fluid temperature and viscosity on the migration and distribution of proppants within a fracture

Journal of Petroleum Exploration and Production Technology
This work presents a numerical study incorporating the impact of temperature variations along the fracture on the viscosity of fracturing fluids and consequently on proppant distribution in hydraulic fracturing. Traditional models have not considered non-
Fushen Liu, Qi Song, Nanlin Zhang, Jinqing Bao, Yusong Chen   +4 more
doaj   +1 more source

A Prior Assessment of Heat Transfer Efficiency From Shale Formations to Hydraulic Fractures in Geothermal Wells Converted From End‐of‐Lifetime Natural Gas Wells

Energy Science &Engineering, Volume 13, Issue 12, Page 5802-5809, December 2025.
ABSTRACT Although the conversion of end‐of‐lifetime fractured hydrocarbon wells to geothermal wells has gained a strong momentum in research, it is necessary to perform thorough technical assessments of well conversion before pilot testing. The objective of the study was to perform such an assessment on converting fractured horizontal hydrocarbon wells
Boyun Guo, Yuanyuan Ma, Mohammad Nezam Uddin   +2 more
wiley   +1 more source

Unconventional gas: potential energy market impacts in the European Union [PDF]

, 2012
In the interest of effective policymaking, this report seeks to clarify certain controversies and identify key gaps in the evidence-base relating to unconventional gas.
ALECU Corina, ERIKSSON Arne, GRACCEVA FRANCESCO, MCGLADE Christophe, PEARSON IVAN, SCHUETZ Michael, SORRELL Steve, SPEIRS James, THONHAUSER Gerhard, TOFT Peter, ZASTERA Pavel, ZENIEWSKI PETER   +11 more
core   +1 more source

Characterization of Proppant Flowback in Hydraulic Fracturing Rough Fractures

Energy Science &Engineering, Volume 13, Issue 11, Page 5768-5776, November 2025.
This graphical abstract reveals the proppant flowback mechanism and controlling factors in rough fracture through CFD‐DEM modeling. This study investigates unavoidable proppant flowback during fracturing, which leads to wellbore sand plugging and reduced fracture conductivity. A coupled CFD‐DEM model simulates flowback in rough fracture, revealing that
Shou Ma, Xingyu Fang, Honglei Yang, Cheng Yan, Huanle Zhuang, Enjia Dong, Mingming Liu, Xiaodong Hu   +7 more
wiley   +1 more source