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Showing 1 to 20 of 25 for “"Berea Sandstone"”.
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Subcritical time-dependent response of Berea sandstone
… adopted. Inelastic time-dependent deformation of Berea sandstone is evaluated in the compression tests, with a stepwise loading method applied. To assess time-dependent behavior, axial and lateral strains are measured during uniaxial compression, as well as triaxial drained and undrained …
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Stress Redistribution in Berea Sandstone Samples Using Acoustic Emission Tomography in the Laboratory
… unconfined compression strength testing of 19 Berea sandstone samples. These samples were loaded to failure and during the experiment the acoustic emission events within the samples were monitored using a commercial acquisition system manufactured by Engineering Seismology Group (ESG) Canada. …
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Passive Tomography to Image Stress Redistribution Prior to Failure on Berea Sandstone and Marcellus Shale for Caprock Integrity
… double difference tomography, the failure of a Berea Sandstone sample and Marcellus Shale sample were calculated to determine how well the stress redistribution within the sample could be mapped using the recorded data. For the main indenter tests two samples were tested, a piece of Berea …
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Characterization and modeling of the stress and pore-fluid dependent acoustic properties of fractured porous rocks
… to characterize the seismic properties of sandstone under different levels of effective stress confinement and changes in pore-fluid composition. An intact and fractured of Berea sandstones core samples were used in the experimental studies. The laboratory test results were used to develop …
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Experimental Investigation of Synthetic Fines Injection for Enhanced Residual CO2 Trapping during CO2 sequestration
… this mechanism is mainly limited to clay-bearing sandstones containing mobile fines generated in situ. In sandstones with limited or no natural fines, this trapping mechanism may be ineffective. Therefore, synthetic fine particle injection offers a controllable approach to overcome this limitation …
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Image-Based Modeling of Porous Media Using FEM and Lagrangian Particle Tracking
… producing reservoirs: one with shale, one with Berea sandstone. The resulting XCT images were segmented, analyzed for structural and porosity changes, and then used for image-based flow modeling of Stokes flow using both finite element (FEM) and Lattice Boltzmann methods. NPs have been widely …
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Numerical modeling of tool-rock interaction in laminated formations
… various formation dips (from ()O to 9(0) of the Berea sandstone have been simulated and compared with experimental results.
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Phase equilibrium study of methane hydrate
… study, methane gas hydrates were formed in a Berea sandstone core, which was saturated with brine and then pressurized with methane gas. The formation temperatures were 34°F, 36°F and 40°F and the initial pressures were in the range of 1000--1200 psi. Variation of the methane …
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Extracting Physically Realistic Pore Network Features from XCT Data and Investigating the Impact of Pore Topology on Flow in Porous Media
… pore structure created from a 3D-Boise Sandstone pore structure. A combination of MIP data and physically realistic pore network drainage simulations were used to account for the pore space and the characteristic throat sizes that can be effectively detected in an XCT image data of a …
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Joule heating and pore pressure evolution, magmatic intrusions at continental rifts, and microseisms in Yellowstone Lake
… and permeability of brine saturated Berea Sandstone rock specimens.
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Joule Heating and Pore Pressure Evolution, Magmatic Intrusions at Continental Rifts, and Microseisms in Yellowstone Lake
… and permeability of brine saturated Berea Sandstone rock specimens.
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A Study of Transport of Micellar Fluids in Porous Media
… brineoil- surfactant-alcohol mixture in a Berea sandstone core. The measurements were done at steady-state with a constant nominal capillary number of 10^-2. Residual phase saturation (capillary desaturation curve) and endpoint relative permeability have also been measured for three-phase …
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Performance Of A Novel In-Situ HCl For Carbonate and Sandstone Reservoirs
… both organic and inorganic, to stimulate sandstone and carbonate reservoirs. Among these, hydrochloric acid (HCl) is the most commonly used acid because it is cheap and efficient. In carbonate reservoirs, HCl is used by itself to decrease skin damage by creating conductive wormholes; …
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Pore-scale dynamics of immiscible two-phase flow on porous and fractured media
… immiscible fluid in a two-dimensional(2D) Berea sandstone.;Through invasion of the wetting phase into the porous matrix,it is observed that the viscosity ratio plays an important role in the non-wetting phase recovery. At the viscosity ratio (λ) of unity, the saturation of the wetting fluid …
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Characterizing Damage Evolution and Yield in Sandstone Under Triaxial Loading as a Function of Various Effective Pressure
… transition. Water saturated cylinders of Berea sandstone (18 percent porosity, 185 mu m grain size) were deformed at an axial strain rate of 4x10^-5 s^-1 to 8x10^-5 s^-1 pore pressures of 10, 20, and 30 MPa, and confining pressures of 50, 180, and 260 MPa to investigate the brittle, …
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Investigation of smooth contact angle treatment in porous media
… geometries. Finally, we perform simulations on a Berea sandstone sample [6] to understand dynamics behaviour of immiscible fluids in porous media.
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An investigtion into the ability of a kinetic particle-based solver for study of gas flows in micro-scale structures
… with image-reconstructed porous media such as 2D Berea sandstone and 3D rock samples such as Gambier, Castlegate and Fayetteville shale are carried out and analysed. The unique approach enables the solver to obtain novel, substantial and reliable insights at the pore level while employing …
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Transport and seismoelectric properties of porous permeable rock : numerical modeling and laboratory measurements
… methods are used to calculate properties of Berea Sandstone 500 (BS500) with 23.6% porosity, whose 3-D microtomograms with 2.8 micron resolution are available. Using the numerical methods, rock porosity, pore surface area, (cont.) electrical conductivity and permeability are calculated.
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Defining Stress Changes Ahead of a Tunnel Face and Design of a Data Acquisition System
… study tomographic tests were conducted on Berea sandstone and Five Oaks limestone samples. The stress redistribution in the sandstone samples could be imaged by mapping velocity distributions. On an unconfined test the sandstone sample acted much like a coal mine pillar where the stress …
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Experimental analysis of the post-failure behavior of coal and rock under laboratory compression tests
… obtained from mines in West Virginia, Utah and sandstone quarries in Tennessee. Six different types of rocks (Berea sandstone, medium-grained sandstone, and coarse-grained sandstone, massive sandstone with coal streaks, grey shale and black shale) were tested in the rock mechanics laboratory. …
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