Stress-Permeability Dependence in Geomaterials from Laboratory Testing of Cylindrical Specimens with Central Hole

The laboratory setup is designed and manufactured to carry out permeability tests of cylindrical specimens with central hole modeling performance conditions of real producing wells under nonuniform stresses. The series of tests is accomplished with artificial specimens made of medium-grain sand cond...

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Bibliographic Details
Published in:Journal of mining science 2019-09, Vol.55 (5), p.708-714
Main Authors: Nazarova, L. A., Nazarov, L. A., Golikov, N. A., Skulkin, A. A.
Format: Article
Language:English
Subjects:
Compressibility
Dependence
Earth and Environmental Science
Earth Sciences
Exponential functions
Geomaterials
Geomechanics
Geophysics/Geodesy
Geotechnical Engineering & Applied Earth Sciences
Laboratories
Laboratory tests
Mineral Resources
Permeability
Permeability tests
Surveys
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Summary:The laboratory setup is designed and manufactured to carry out permeability tests of cylindrical specimens with central hole modeling performance conditions of real producing wells under nonuniform stresses. The series of tests is accomplished with artificial specimens made of medium-grain sand conditioned by cryogel. The empirical dependence of permeability on effective stress is found; it is approximated by an exponential function with coefficient α = 0.0021 MPa −1 , which is an order of magnitude higher than α estimated based on compressibility of geomaterials and rocks.
ISSN:1062-7391
1573-8736
DOI:10.1134/S1062739119056075