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Impact of the Loading Stress Variations on Transport Properties of Granular Packs

Authors
A. Takbiri-Borujeni (West Virginia University) | M. Tyagi (Louisiana State University) | M. Kazemi (West Virginia University)
Document ID
ARMA-2014-6962
Publisher
American Rock Mechanics Association
Source
48th U.S. Rock Mechanics/Geomechanics Symposium, 1-4 June, Minneapolis, Minnesota
Publication Date
2014
Document Type
Conference Paper
Language
English
ISBN
978-0-9894844-1-1
Copyright
2014. American Rock Mechanics Association
Downloads
1 in the last 30 days
98 since 2007
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ARMA Member Price: USD 10.00
ARMA Non-Member Price: USD 20.00

Abstract

Hydraulic fracturing is a well stimulation technique that makes the recoveries from the vast unconventional hydrocarbon resources in US economically feasible. Proppants are granular materials that are injected into hydraulic fractures to keep them open following a fracturing treatment. Hence, the proppant selection is of particular significance in petroleum industry. Due to recent advances in imaging technologies and high-performance computing, estimation of the elastic and transport properties of proppant packs at different closure stresses using imaged-based simulations is a credible alternative to direct experiments. In this study, transport properties (permeability and inertial flow parameter) of a ceramic proppant pack exposed to varying loading stresses are calculated using Lattice Boltzmann (LB) model simulations. The images of this packing shows rearrangement of the packing structure, embedding of the grains at the rock wall, and crushing of individual proppants. LB simulation results of this packing show that the permeability and inertial flow parameter are less sensitive to stress variations before crushing of the grains occurs.

File Size  232 KBNumber of Pages   6

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