... a horizontal well is used to perform a hydrogen storage cycle, a lower recovery factor can be obtained than a vertical well system. Meanwhile, a horizontal well system reduces hydrogen injection capacity. Alhotan et al. (2023) conduct a sensitive study on permeability heterogeneity. Iglauer (2022) optimum...

... ABSTRACT This paper investigates the effects of the injection of (relatively) cold CO 2 into a saline aquifer, focusing on the effects that local heterogeneities may have on the geomechanical changes observed during injection. Representative properties of the Smeaheia site, a full-scale...

... that has calcite shrubs and spherulites as the main textural components. The average porosity (13.3 %), obtained in gas permeameter-porosimeter was similar to the one obtained from thin sections, well logs, nuclear magnetic resonance, and digital rock analyses. The carbonates’ heterogeneity was manifested...

... possible if the fracture becomes contained at depth. In the absence of any heterogeneity, assuming a Newtonian fluid, an impermeable medium subjected to linear background stress, and a block injection, Möri and Lecampion (2023) have shown that the containment depends on a single, dimensionless buoyancy...

... localization decreases, and the heterogeneity of the strain field increases at peak stress for homogenous specimens. The initiation stress of strain localization for specimens loaded vertically to bedding planes is reduced, specimens loaded horizontally to bedding planes have two initiation points. (2...

... explain all the observed data, i.e., the stress field is heterogeneous, motivated a Monte Carlo analysis to characterize the stress field in the rock volume. We randomly select subgroups of 5 out of the tested intervals, with one fracture trace randomly selected out of the observed traces for each...

.... In these basins the in-situ minimum stress is usually directed horizontally causing the hydraulic fracture to propagate on vertical plane and to interact with layer-like heterogeneities. To varying degrees, these heterogeneities comprise differences in the in-situ minimum stress, fracture energy, elastic...

... ABSTRACT To solve the issues during large-scale hydraulic fracturing such as massive consumption of water, formation damage and environmental contamination, etc., supercritical CO 2 (SC-CO 2 ) has been introduced as an alternative anhydrous-fracturing fluid. However, the heterogeneity...

... of confinement. Axial and radial deformation within each section of intact rock in the specimens were recorded with separate strain gages, and strain gages in these same positions were also attached to intact specimens for comparison. Notable radial strain heterogeneity was observed in the jointed specimens...

... upper region heterogeneity diametrical direction bentonite sample sample height lower region diameter mean value water content hydration process evolution original state middle region inlet point ABSTRACT Gyengju bentonite has been suggested as a candidate material for buffer...

... ABSTRACT Anisotropy due to heterogeneities in rocks, such as shale, affects the mechanical properties of the rock depending on their orientation and arrangement. For instance, layering and pre-existing cracks can create potential weak planes. Hence, a measurement technique that can capture...

... heterogeneities and the important impact they can have on hydrocarbon resource assessments in unconventional plays (Ferrill et al., 2017, Abell and Sassen, 2020, Hyrb et al., 2020, Gonzalez et al., 2021). The evaluation and incorporation of sub-log scale geologic variations into earth models and simulators has...

... samples collected from outcrops located near the San Emidio geothermal field. In this paper, we seek to understand (1) the static and dynamic elastic properties of the rock formations, (2) the existence or absence of anisotropy or heterogeneity-controlled behavior at the millimeter to centimeter scales...

... engineering olivella heterogeneity intrinsic permeability mesh refinement hexahedral mesh ARMA 22 679 Numerical mesh sensitivity works performed to analyze advective gas flow in a compact clay Damians, I.P., Noghretab, B.S., Olivella, S., and Gens, A. Universitat Politècnica de Catalunya·BarcelonaTech...

...ARMA 22 0685 Direct measurements of intra-fracture hydraulic heterogeneity on a multi-meter scale Libby, S and Hartley, L Golder (part of WSP), UK. Copyright 2022 ARMA, American Rock Mechanics Association This paper was prepared for presentation at the 56th US Rock Mechanics/Geomechanics Symposium...

... to resolve this using multiple-point statistics that have long been used for generating synthetic images, though mostly applied to sandstone rocks where the heterogeneity is significantly less than that of carbonates. These algorithms work by sequentially populating a grid to emulate the observed image...

... ABSTRACT: In this paper we describe various approaches used to capture heterogeneity within the reservoir undergoing hydraulic fracturing treatment and their implication on modelling of fracture propagation. In highly laminated reservoirs with soft and/or weak layers, capturing heterogeneity...

... on the Multiphysics Object Oriented Simulation Environment (MOOSE). The effect of micro-fracturation enhancement and that of microstructural heterogeneity on the material behaviour are presented. Introduction The exploitation of hydrocarbons from unconventional reservoirs offers a long-term potential to meet...

... to investigate hydraulic fracture branching under different anisotropic stress conditions with distinct injection parameters and sample heterogeneity. This self-designed TTT cell has a transparent bottom window for us to record hydraulic fracture propagation in real-time. We completed a few benchmark experiments...

...ARMA 22 256 Numerical Simulation of Limited-Entry Fracturing in Multi-layer Heterogeneous Reservoir Wang, F. State Key laboratory of Petroleum Resources and Prospecting and China University of Petroleum, Beijing, China Deng, J.G. and Liu, W. State Key laboratory of Petroleum Resources...