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Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0123
... a horizontal poro-elastic hydrogeological profile is subjected to depressurisation in combination with a time-dependent Richard’s equation and linear elasticity. The effect of sorption-induced shrinkage is included in the model using the definition of and the concurrent effects of shrinkage on both...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0105
... Magnitude aperture Longwall Mining boundary fracture deformation strata permeability Upstream Oil & Gas strength variation abutment fracture equation 1. INTRODUCTION In Australia, the ability to accurately predict the behavior of water in longwall operations has become a pressing issue...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0125
... Simulation morphology moduli Ghabezloo equation 1. INTRODUCTION Cement paste is used in oil/gas wells to seal the annulus space between two casings or between casing and formation. Injected as a fluid, the cement slurry hydrates through complex chemical reactions to become a solid material forming the...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0091
... plastic region Chen equation wellbore pressure Abousleiman ABSTRACT: The elastic models combined with the Mohr-Coulomb criterion are frequently used to assess the wellbore stability problem. However, the elastic models are generally too conservative to predict the minimum wellbore pressure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0034
... numerical model saturation dependence imbibition curve equation flow in porous media Parlange numerical imbibition curve sarris negative value 1. INTRODUCTION The absorption or imbibition of a liquid, such as water, into porous media is governed by capillarity. The state of water in an...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0101
... separate literature review was then performed to find previously-studied relationships that predict the strength properties of sandstones based on petrographic properties. 59 equations for sandstones were found and were tested against the broader sandstones database compiled in this study. It was found...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0141
... Intelligence Upstream Oil & Gas node boundary condition matrix Reservoir Characterization complex reservoir constraint numerical code algorithm paluszny discontinuity fracture equation virtual element method Lagrange multiplier hydraulic fracturing element method wrigger contact problem...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0138
... porosity configuration Fontainebleau sandstone propagation Pazdniakou experimental data log analysis Fluid Dynamics dynamic permeability sandstone adler equation wave propagation mirror configuration permeability 1. INTRODUCTION Propagation of waves in porous media is an important topic in...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0209
... ground surface detection cavity lattice point propagation correlation length equation plane surface 1. Th het gen app det Th Sp wh dim bac add pro ma not of als Th reg par ov can An pai usu A D w A So C T 2 re o o T AB exp stud by Mo INTRODU e detectio erogeneities erates a lo lications, s...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0334
... complex reservoir Fluid Dynamics stability analysis experiment specimen disturbance chalk acidizing wavelength acid injection rate porosity Injection Rate permeability linear stability analysis dissolution wormhole equation 1. INTRODUCTION Matrix acidizing is a common reservoir...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0352
... constitutive equations applicable for shale rocks to formulate a coupled stress-dependent permeability model for shale. The coupled model was validated against permeability data of Marcellus shale with different stress variations. The modeled data was in close agreement with the experimental data and this...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0234
... easily to a material having several components (multi-components). In this latter case, the conservation equations (mass, momentum, etc.) apply to each component of the physical system. The idea or spirit of the method will be given about the upscaling of the pore-scale equations to derive a macro-scale...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0228
... phenomenon is represented by fluid mass and force balances on the porous media, also known as Biot s Equation (Biot, 1941; Biot and Willis, 1957), and, e.g. is traditionally solved by Continuous Galerkin (CG) method (Salimzadeh et al., 2018). However, this method may produce an unphysical pressure...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0224
... properties of the soil to analyze the influence of internal erosion induced by the collapse of a karstic cavity beneath the alluvium layer of a dike. 2. MODEL FORMULATIONS 2.1. Mass balance and particle transport The mass balance equations are based on the porous media theory (de Boer 2000; Schaufler et al...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0249
... fractures, and fluid/proppant distribution among clusters. The complex and nonlinear nature of the governing equations make hydraulic fracture simulation and modeling challenging. A fast, accurate, and computationally efficient hydraulic fracturing simulator considering all the first-order effects is...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0347
... porosity fluid flow fluid diversion diversion Upstream Oil & Gas particle particle size effective permeability particle ratio Fluid Dynamics equation permeability pressure drop Huang binary mixture small particle experimental data particle system 1. INTRODUCTION Petroleum industry...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0324
... strong influence on the elastic strain energy accumulation. Upon sensitivity analysis, mining depth, length of cantilever roof in the goaf, coal seam thickness, roof thickness, Young's modulus of coal seam and roof were identified as the main influencing parameters. The analytical equations were...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0289
... induce pressure decrease from apparent fracture plugging. Upstream Oil & Gas composition MPa hydraulic fracturing pressure flow response data eg system US government borehole national laboratory eg collab project hydraulic fracture underground research facility equation production...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0404
... single continuum model and neglect the multi-continuum nature of shale. Valliappan and Khalili-Naghadeh (1990) have extended the poroelastic theory to dual porosity rock and gave the fluid-sloid coupling equations of the naturally fractured and water saturated rock based on a rigorous mathematical...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0395
... problems. A hydro-mechanically coupled model is developed in this paper to characterize drilling mud flow in naturally fractured formations. Especially, the mud leak-off from fractures into the matrix is described by a new method. The finite element equations are derived for the model and integrated over...

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