... of effective frictional properties, rock composition, porosity, and plasticity in fault gouges (Tullis and Yund, 1980; Boettcher et al., 2007; Giger et al., 2007; Barbot, 2022; Scholz, 2019). The complex frictional behaviors are often captured by a standard RSF that uses a state variable to represent...

..., a pouring method of gas hydrate bearing sediment substitute has been optimized. We used the cured samples to prepare 25 * 50 mm standard cylinders and carried out triaxial shear test and porosity & permeability test. The physical properties test results show that the substitute corresponds well...

... basin matrix limitation gassmann model north dakota moduli lodgepole formation canada government equation bulk modulus pore fluid gassmann method porosity geothermal lodgepole reservoir aspect ratio pore shape rock physic feasibility study ARMA 23 319 A Rock Physics Feasibility Study...

... scale, but a more comprehensive understanding is needed. This study examines the impact of six rock properties - porosity, clay content, permeability, sample size, and the framework grain content to cement content (FGC/CC) ratio on Young's modulus in samples from five rock facies. The goal...

... of the crushed salt compaction process is essential, yet crushed salt compaction involves several thermal-hydraulic-mechanical (THM) coupled processes and is influenced by internal, as well as external conditions. The current understanding has some important knowledge gaps. For example, the porosity/permeability...

...) in the Bakken shales may reach 40 wt.%, with potential oil in place in a range of 10-500 billion barrels (Aoun et al., 2023a; Ozotta, et al., 2022a; Sennaoui et al., 2023a; Sorensen et al., 2010), but ultra-low porosity and permeability characteristics (Afari et al., 2022; Laalam et al., 2022b; Ozotta et al...

.... In the current state uncertainties still remain with respect to the numerical simulation of crushed salt compaction processes, especially in the low porosity range (≤ % 5). This paper presents an approach for the modification of a constitutive model formulation implemented in the finite-element code CODE_BRIGHT...

... are performed. Varied parameters are those which govern pore pressure responses caused by induced changes in total effective stress (unloading) of the rock mass, such as elastic modulus, porosity, and permeability. Results are presented and discussed for each modeling case scenario using pore pressure history...

...-related granite outcrop and from the Utah FORGE granitoid geothermal reservoir. Matrix and fracture permeabilities and porosities, and pore compressibility were measured and, where appropriate, were used both as guides and input data in the interpretation of the analytical and numerical solutions of flow...

... twc europe government depressurization geological subdiscipline plug sp38 sample p-treated p-treatment carbonate rock subsurface storage reservoir geomechanics mpa compressive strength cylinder porosity strength permeability sanpete valley carbonate unconfined compressive strength...

... (micro-fractures, pore scales). We carried out multi-stage sequential and alternate hydraulic fracturing experiments, respectively. The effect of fracturing sequence on porosity and permeability characteristics was quantitatively analyzed from the microscopic perspective through Nuclear Magnetic...

... ABSTRACT Laboratory testing of rocks and developing their interrelationships is a good way for assessment of rock behavior for mining and construction industries. A detailed testing program was envisaged to establish possible correlations between porosity and mechanical properties...

... ABSTRACT Artificial sandstone-like rocks fabricated in the laboratory offer great advantages in controlling their grain size distribution, grain morphology, porosity, and cement content. Synthetic granular rocks offer an efficient way to validate existing analytical models, calibrate numerical...

... plastic effective stress coefficient clastic rock increment wellbore design hydraulic fracturing equation reservoir geomechanics stress coefficient correction function tensor expression strain increment shale porosity plasticity deformation prandtl-reuss model ARMA 23 0633 Constitutive...

... of metrics that are evaluated throughout the entire image volumes before and after testing. The results suggest that local porosity and sorting are the main controls on local strength, whereas neighborhoods with larger mean grain size do not appear to be more prone to yielding. This is consistent...

... and on evolution of fracture geometry, porosity, and permeability. The results show that the coupled physicochemical process is strongly dependent on the Pe and Da. While similar trend of the permeability-porosity variations is obtained for the two fractures at the same Pe and Da numbers, the evolution of fracture...

... and unloading tests and creep tests were carried out on rock samples from salt layer, interlayer and cap layer of hydrogen storage reservoir of Jintanmao 17 well by means of rock mechanics experimental machine RTR-1500. The deformation and failure characteristics, permeability, porosity, breakthrough pressure...

...-dependent permeability model is developed to account for the large drops in permeability associated with these compaction failures. The permeability model modifies the Kozeny-Carman model for permeability as a function porosity to include a stress dependent term linked to grain crushing or pore collapse...

... reservoir properties of hydrocarbon reservoirs. Thus, in this study we investigated the effects of three commonly used hyperparameters; namely, n_estimators, max_features and min_samples_leaf to predict porosity of Volve oil field in North Sea. Four parameters; depth, gamma ray logs, neutron porosity logs...

... rock properties is to use its regression with geophysical logs, particularly the sonic velocity. Such an approach was challenged when applied to shallow and heavily weathered bedrocks accompanied by high porosity and water saturation and low density. The preserved drill cores from the previous drilling...