Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Constitutive Modelling of Geological Formations Considering Porosity and Permeability Alternations Due to Fluid Withdrawal.

Kukreti-AR; Zaman-MM; Civan-F
For Reference Only At Bureau Libraries :50 pages
The main objectives of this research include the following: (1) to conduct an experimental study to develop a relationship between permeability, porosity, and pore microgeometry-morphology and to characterize the relative permeability variation in a rock specimen, (2) to conduct an experimental study to develop a relationship between permeability and effective stress in a deforming rock, and (3) to develop a constitutive model for coal and sandstone, the two common reservoir media found in gas and hydrocarbon reservoirs, respectively, which describes their load-deformation behavior up to failure. This study involves development of equipment and test procedures to accurately measure permeability as a result of changes in effective stress with continued reservoir production, and to conduct load-deformation tests to determine pertinent material parameters describing a truly three-dimensional state of stress and strain. Also state-of-the-art equipment is used to obtain test data to characterize the variation of relative permeability in a rock specimen. Three study tasks were conducted to accomplish the aforementioned objectives: (1) study to characterize dry permeability-porosity relationship, permeability-effective stress relationship, and relative permeability variation, (2) three- dimensional testing of coal and determination of parameters characterizing its load deformation up to failure, and (3) three- dimensional testing of Berea sandstone and determination of parameters characterizing its load-deformation up to failure. The test procedures, concepts to formulate the
Publication Date
Document Type
CP; Final Contract Report;
Fiscal Year
NTIS Accession No.
NTIS Price
Identifying No.
OFR 19-92
Source Name
For Reference Only At Bureau Libraries
Performing Organization
University of Oklahoma