Benchmarking conventional and machine learning segmentation techniques for digital rock physics analysis of fractured rocks
M Reinhardt, A Jacob, S Sadeghnejad… - Environmental Earth …, 2022 - Springer
Image segmentation remains the most critical step in Digital Rock Physics (DRP) workflows,
affecting the analysis of physical rock properties. Conventional segmentation techniques …
affecting the analysis of physical rock properties. Conventional segmentation techniques …
Stress sensitivity of porosity and permeability under varying hydrostatic stress conditions for different carbonate rock types of the geothermal Malm reservoir in …
D Bohnsack, M Potten, S Freitag, F Einsiedl… - Geothermal …, 2021 - Springer
In geothermal reservoir systems, changes in pore pressure due to production (depletion),
injection or temperature changes result in a displacement of the effective stresses acting on …
injection or temperature changes result in a displacement of the effective stresses acting on …
Direct and indirect laboratory measurements of poroelastic properties of two consolidated sandstones
Experimental measurements to derive the drained bulk C and the solid bulk C su
compressibility, the poroelastic Biot coefficient α, Skempton coefficient B as well as porosity …
compressibility, the poroelastic Biot coefficient α, Skempton coefficient B as well as porosity …
The effects of temperature and pressure on the porosity evolution of Flechtinger sandstone
A Hassanzadegan, G Blöcher, H Milsch, L Urpi… - Rock Mechanics and …, 2014 - Springer
A porosity change influences the transport properties and the elastic moduli of rock while
circulating water in a geothermal reservoir. The static and dynamic elastic moduli can be …
circulating water in a geothermal reservoir. The static and dynamic elastic moduli can be …
Hydromechanical investigations on the self-propping potential of fractures in tight sandstones
C Cheng, H Milsch - Rock Mechanics and Rock Engineering, 2021 - Springer
The hydromechanical properties of single self-propping fractures under stress are of
fundamental interest for fractured-rock hydrology and a large number of geotechnical …
fundamental interest for fractured-rock hydrology and a large number of geotechnical …
Transient heat transfer processes in a single rock fracture at high flow rates
S Frank, T Heinze, S Pollak, S Wohnlich - Geothermics, 2021 - Elsevier
Understanding the process of heat transfer in fractures and the influence of fracture surface
morphology is crucial for optimized heat mining. In this work, we investigated transient heat …
morphology is crucial for optimized heat mining. In this work, we investigated transient heat …
Evolution of permeability and Biot coefficient at high mean stresses in high porosity sandstone
MD Ingraham, SJ Bauer, KA Issen… - International Journal of …, 2017 - Elsevier
A series of constant mean stress (CMS) and constant shear stress (CSS) tests were
performed to investigate the evolution of permeability and Biot coefficient at high mean …
performed to investigate the evolution of permeability and Biot coefficient at high mean …
[HTML][HTML] Effects of external temperature and dead volume on laboratory measurements of pore pressure and injected volume in a rock fracture
The accurate evaluation of pore pressure and injected volume is crucial for the laboratory
characterization of hydromechanical responses of rock fractures. This study reports a series …
characterization of hydromechanical responses of rock fractures. This study reports a series …
Predicting mode-I fracture toughness of rocks using soft computing and multiple regression
DG Roy, TN Singh, J Kodikara - Measurement, 2018 - Elsevier
Mode-I fracture toughness (FT) is an important property to model fracture propagation in
rocks and it has wide application in a plethora of rock mechanics problems such as …
rocks and it has wide application in a plethora of rock mechanics problems such as …
The stress‐memory effect of fracture stiffness during cyclic loading in low‐permeability sandstone
The hydraulic performance and mechanical stability of open fractures are crucial for several
subsurface applications including fractured geothermal reservoirs or nuclear waste …
subsurface applications including fractured geothermal reservoirs or nuclear waste …