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Keywords: fluid flow
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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. The...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0045
... fluid flow in-situ stress hydraulic fracturing orientation perforation cluster hydraulic fracture fracture propagation interaction 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...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0249
... heterogeneity. As such, accurate fracture modelling and simulation can greatly decrease the uncertainties in the process and reduce the risks to the assets. Hydraulic fracturing is a multi-physics application that couples fluid driven solid deformation, fracture propagation, fluid flow in porous media and...
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 the...
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-2019-2031
... 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-2019-1563
... method (XFEM) 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...
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...
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 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 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-651
... ABSTRACT: The production of naturally fractured reservoirs is highly influenced by these features, which increases the permeability and alter the flow trajectory and the pressures in the reservoir. Studies of fluid flow in fractured media have recently gained interest due to the high...
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-2018-961
... flow assurance particle fluid flow erosion Sand Erosion cavity porosity anisotropic stress test reservoir geomechanics pore pressure gradient prediction Vardoulakis equation sand mass pressure gradient plastic shear strain 1. INTRODUCTION Erosion of reservoir sandstones during...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-051
... 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 with...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-007
... fluid flow for heat extraction. The success of FORGE will be accelerated by near‐term research and development activities, testing in readily-accessible underground facilities at intermediate (on the order of 10 m) scales that can refine our understanding of rock mass response to stimulation, and...
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...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0237
... model stage scale simulations of hydraulic fractures primarily due to the nonlinearity arising from fluid flow inside the fracture. Typical assumptions to improve the computational efficiency lead to the inability of simulators to describe proppant transport which is critical to treatment design. In...

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