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Keywords: rock model
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Proceedings Papers

Paper presented at the 50th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2016
Paper Number: ARMA-2016-160
... cohesion smooth joint contact model wellbore integrity modeling rock model verification weak cohesive plane stiffness transversely isotropic model weak plane smooth joint model contact model 1. INTRODUCTION Anisotropy of rock is generally observed in various rock types, e.g., shale...
Proceedings Papers

Paper presented at the 49th U.S. Rock Mechanics/Geomechanics Symposium, June 28–July 1, 2015
Paper Number: ARMA-2015-366
... Abstract A grain-based rock model was developed and applied to study wellbore stability. The rock is represented as an assembly of tetrahedral blocks with bonded contacts. Material heterogeneity is modeled by varying the tensile strength at the block contacts. This grain-based rock model...
Proceedings Papers

Paper presented at the 48th U.S. Rock Mechanics/Geomechanics Symposium, June 1–4, 2014
Paper Number: ARMA-2014-7365
... borehole maximum principle stress hydraulic fracturing aperture fracture rock model approach angle fluid pressure hydraulic fracture principal stress fracture behavior permeability 1. INTRODUCTION The development of the unconventional oil resources, such as shale oil and gas, dramatically...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-659
... flow-coupled DEM code. As the simulation results, followings were found. When rock models with small Young’s modulus are used, average aperture of all microcracks is larger than those with large Young’s modulus because it can deform easily. Therefore fracturing fluid infiltrates into the fracture tip...
Proceedings Papers

Paper presented at the 47th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2013
Paper Number: ARMA-2013-382
... of the rock. A reliable numerical reconstruction porous rock model provides an effective and economic way for the research of the influences of the micro-pores to the rock macro-properties. In this paper, we present a novel numerical method to reconstruct poorly connected porous sandstone. A fractal...
Proceedings Papers

Paper presented at the 46th U.S. Rock Mechanics/Geomechanics Symposium, June 24–27, 2012
Paper Number: ARMA-2012-481
... be a bridge of them because it is dominant factor to govern permeability and seismic velocity. Since pore geometry of rock mass is highly complicated, two rock models (cracked rock model and granular model) are adopted for the research. For the calculation of permeability, lattice Boltzmann simulation...
Proceedings Papers

Paper presented at the 43rd U.S. Rock Mechanics Symposium & 4th U.S. - Canada Rock Mechanics Symposium, June 28–July 1, 2009
Paper Number: ARMA-09-037
... other. (Equation in full paper) SIMULATION CONDITION Fig. 5 illustrates the rock model and loading condition for the hydraulic fracturing. The rock model is expressed by the assembly of particles bonded with each other. The particle radius was chosen to have a uniform distribution between maximum...
Proceedings Papers

Paper presented at the The 17th U.S. Symposium on Rock Mechanics (USRMS), August 25–27, 1976
Paper Number: ARMA-76-0001
... uniaxial strain test failure envelope soil model Upstream Oil & Gas stress point compaction elastic behavior compression stress path Reservoir Characterization sandler cap model mathematical model situ test plastic dilatancy dynamic problem Cap model model behavior loading rock model...

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