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Keywords: simulator
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1043
.... Theoretical analysis of a circular borehole deformation in elastic media indicates that the deformation modulus is equivalent to the Young's modulus in plane strain condition. A numerical simulator is constructed to simulate loading-unloading process during PMT test. The simulator is applied to simulate PMT...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1430
... a series of coupled THMC model simulations for a bentonite barrier. After providing a brief overview of the typical coupled processes encountered in bentonite barriers, we describe the development of a simulator that can simultaneously compute THMC processes, and how the capability of the THMC simulator...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1627
... of the parameters provided by the ultra-fast optimization on selected stages. The two models can thus be calibrated simultaneously, with the same amount of redundancy and the same range of variability of these controlling parameters, without the penalty of impractical computational time. In this work, simulating 10...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2061
... is established to simulate the temperature behavior along the wellbore during the shut-in period and production stages. Thermal Embedded Discrete Fracture Model (Thermal EDFM) is integrated with discrete wellbore model to analyze the fluid flow and heat conduction inside complex fracture network. Full physics...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1859
... empirical relationships. Fluid leak-off, non-uniform proppant placement in the fracture and heterogeneity in the reservoir further complicate the process. In this work, we show that the incorporation of a contact model in a fully implicit geomechanical fracture simulator is very important in determining...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1848
... simulation, we further investigate the potential for fault activation along with heterogeneous permeability fields. Specifically, we place a vertical fault in the middle, considered as a weak zone. Then, by using the coupled FMM flow-geomechanics simulator, we show the numerical results of surface...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1944
... ABSTRACT: This paper presents a numerical model for a pilot-scale geological carbon sequestration by coupling an in-house flow simulator to a geomechanics simulator named FLAC3D. The developed simulator provides two-way coupling between fluid flow and geomechanics and it is used in modeling...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-397
... of analytical simulations of the anticipated behavior of reinforcement elements prior to the construction of discontinuous stress analysis models. A series of tools have been presented that can be used to capture the behavior of reinforcement elements under different strains. The applicability of these tools...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-230
... the capabilities of the developed model, the paper presents the comparison between the computed numerical solution and a reference solution. The latter is calculated using a fully 3D hydraulic fracturing simulator for multiple parallel hydraulic fractures. We investigate the effect of perforation friction...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0478
... extent of the pressurized region is much greater than the vertical extent and the shear modulus of the reservoir and cap rock are similar. These results assumed a spatially uniform pore pressure, which is not realistic for most cases. A new coupled simulator was used to parametrically study these effects...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0601
... plugging under downhole conditions and couple it to reservoir-scale simulations to thoroughly investigate the process and optimize the operational parameters accordingly. The proposed design engine and workflow enables operators to simulate multiple diversion scenarios, to compare the resulting fracture...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0133
... ABSTRACT: In order to understand and to predict the response of EBS, we simulate a clay-rock repository case considering chemo-mechanical coupling, in which chemical changes affect the mechanical behavior of the bentonite through the evolution of volume fraction of smectite, exchangeable...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0382
... ABSTRACT: This study investigates hydraulic fracture propagation using a coupled hydro-mechanical simulation code, TOUGH-RBSN. The modeling tool combines a multiphase fluid flow and heat transport simulator, TOUGH2, with a geomechanical and fracture-damage modeling approach, called the rigid...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0321
... ABSTRACT: We improved our thermal-hydraulic-mechanical-chemical (THMC) simulator to predict the long-term permeability change of the fractured rocks. The model evaluates the influence of the geochemical reaction on the evolution of the permeability in fractured rocks by considering pressure...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0267
... coupling techniques have been the most attractive approach to use for simulating the H-M interaction, yet, the techniques are conditionally stable and require small time steps, affecting their efficiency for long-term simulations. To remove these restrictions, an unconditionally stable alternating...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-447
... Abstract: We modeled microearthquakes (MEQs) for tensile failure of vertical fracture propagation by combining geophysics, flow, and geomechanics simulators while accounting for poromechanical effects. Each time fracturing occurred, we calculated the seismic moment tensor from the obtained...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-284
... Abstract: A fully three-dimensional hydraulic fracture simulator was used to demonstrate the impact of stress changes and natural fractures on hydraulic fracture network geometry. Propagating hydraulic fractures change the local stress field, affecting the trajectory of nearby fractures...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-449
... bottom-hole pressures increased the fracture propagation speed because it implied higher geomechanical loading. Furthermore, a higher permeability multiplier leads to a larger failed zone because higher permeabilities pressurize the failed zone faster. Also, simulations showed that there is very little...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-560
... Abstract: Practical aspects of coupling a fracture-mechanical finite-element code to a reservoir simulator for hydraulic fracturing applications are discussed. Three essential components of the coupling are the stability control algorithm, the fracture permeability model, and the pressure...
Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-520
... is strongly coupled with its permeability change. Reservoir simulation has historically treated any geomechanical effects by means of a rock compressibility term/table, which can be improved by simulating the actual geomechanical response and their coupled effects. A coupled model should successfully...

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