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Keywords: fluid flow
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Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2056
... ABSTRACT: The presence of naturally developed collapse breccia pipes poses a risk for subsurface development of natural resources in underground excavations (wellbores, shafts and mines). These features introduce heterogeneities affecting the fluid flow and mechanical behavior...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2040
... ABSTRACT: This paper focuses on the simulation of acoustic signatures created by fluid flow through a porous material with the goal of learning physical flow characteristics from flow-generated acoustic signatures. A fluid-solid interaction solver (FSIS), as a part of a combined finite...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1593
... from the microscopic level. sand control upstream oil & gas oil sand complex reservoir engineering gravel size sand/solids control screen selection simulation bitumen gravel particle efficiency ppg petroleum engineer cfd-dem coupling method fluid flow protective shroud...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0113
... ABSTRACT: Fractures shows strong stress sensitivity when the effective stress changes. Oil production causes the decrease of pore pressure and then leads to the change in subsurface stress. Re-open or closure of fractures bears significant influence on the fluid flow and oil production...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0045
... ABSTRACT: In this study, a 3D DEM lattice simulator is utilized to model the simultaneous growth and mechanical interference among members of an array of hydraulic fractures along a horizontal well. The deformation and fracturing of the rock matrix are simulated by the lattice. Fluid flow...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0249
... flow and geomechanics problems using iterative solvers. We linearize the diffusion and accumulation terms in the fracture fluid flow equation, which is then solved with the linear momentum equation as a block-coupled linear system. The block system is solved once at the beginning of each time step...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0347
... ABSTRACT: Solid particles have been widely used in the petroleum industry for applications including fluid diversion, wellbore strengthening and hydraulic fracturing. The corresponding permeability and fluid flow through packed particles (diverting agents or proppant sands) dictate...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1563
...) and cohesive zone method (CZM). The model can simultaneously capture HF initiation, propagation and re-orientation, fracturing fluid flow and leakoff, formation fluid flow and rock deformation. Interesting results show that (1) pore pressure, stress magnitude and stress orientation are gradually altered...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1542
... not been thoroughly studied. Hence, to optimize parent-infill well development, we will study fracture propagation in infill wells and investigate frac hits between infill and parent wells. We have developed an efficient coupled fluid flow and geomechanics model to characterize stress change in reservoirs...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1678
... fluid flow plastic zone blowout 1. INTRODUCTION AND MODEL FORMULATION Transient solids production can occur during start-up of the well as well as a result of blowouts. The transient solids production at the production stage of horizontal well has been considered in the past numerically (Nouri et...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2031
... representation in an in-house finite element simulator. In order to represent the geomechanical behavior of the fractures, Mohr-Coulomb criterion is adopted together with a traction-separation law based on the model proposed by Bandis. Parallel plate law describes the longitudinal fluid flow along the fracture...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1952
... ABSTRACT: The efficiency of fluid flow in porous media is critical to many energy and environmentally relevant operations, including oil and gas production, geothermal energy, gas-hydrate-bearing sediment, and geologic carbon sequestration. The fluid flow in porous media under a high...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-1699
... ABSTRACT: In this study, we present the results of numerical simulations of washout behavior of granular geomaterials. The washout of soil grains, which is driven by a fluid flow, is considered to be one of the most significant reasons of ground subsidence particularly in urban areas...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-787
... simulation of primary fluid flow through the interfaces between the rock mass blocks and secondary fluid flow into the rock block matrix. The modelling results shows that several key observations in the field of geothermal reservoir stimulation and long-term wastewater disposal are well captured, which...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-933
... ABSTRACT: The knowledge of the fluid flow behaviour is crucial for the success of several energy recovery and geotechnical processes such as enhanced geothermal system (EGS), enhanced oil recovery (EOR), extraction of natural gas, CO2 sequestration, and disposal of nuclear waste in deep...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-051
... with the discrete element method (DEM) is used to model fluid flow through a granular medium. We adopt the resolved CFD-DEM approach which models the solid phase using the fictitious domain method and captures the particle-particle/fluid interactions even at high particle concentrations. Two benchmark problems...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-007
... proceedings objective geothermal reservoir Geothermal reservoir engineering experiment fluid flow hydraulic fracture injection eg collab project fracture propagation 1 J. Ajo-Franklin, S.J. Bauer, T. Baumgartner, K. Beckers, D. Blankenship, A. Bonneville, L. Boyd, S.T. Brown, J.A. Burghardt, T...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-377
... equation of unstable fluid flow in the wellbore is established, the tangential stress around the wellbore is analyzed, and the criteria for diagnosing the fracture types is proposed. Moreover, the propagation equation of hydraulic pressure vibration wave inside the fracture is established. The results...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-777
... coefficient hydraulic fracturing thermally borehole local thermal equilibrium heat transfer fluid flow skeleton hydraulic fracture Reservoir Characterization Upstream Oil & Gas pore pressure international journal tangential stress wellbore fracture equation ABSTRACT: Thermally induced...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1315
... ABSTRACT: A numerical analysis of coupled viscous fluid flow and joint mechanical deformation was developed to estimate penetration length of cement grout. The coupled analysis was established using discrete element method (DEM) such that parameters of both individual joint and discrete...

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