Relative permeability for water and gas through fractures in cement

Autor: Wooyong Um, Mark L. Rockhold, Sangsoo Han, Sean M. Colby, Andrew P. Kuprat, Kenton A. Rod, Christopher E. Strickland
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0208 environmental biotechnology
Marine and Aquatic Sciences
Vascular Permeability
Vascular permeability
02 engineering and technology
010502 geochemistry & geophysics
Vascular Medicine
01 natural sciences
law.invention
Mathematical and Statistical Techniques
law
Limnology
Medicine and Health Sciences
Materials
Multidisciplinary
Petroleum engineering
Physics
Statistics
Multiphase flow
Classical Mechanics
Dynamics
Permeability (earth sciences)
Air Flow
Physical Sciences
Cements
Metallurgy
Regression Analysis
Medicine
Porosity
Geology
Research Article
Science
Materials Science
Material Properties
Airflow
Fluid Mechanics
Linear Regression Analysis
Research and Analysis Methods
Continuum Mechanics
Permeability
Aerodynamics
Binders
Alloys
Statistical Methods
Fluid Flow
0105 earth and related environmental sciences
Cement
Construction Materials
Ecology and Environmental Sciences
Water
Fluid Dynamics
Stainless Steel
020801 environmental engineering
Portland cement
Effluent
Steel
Earth Sciences
Porous medium
Relative permeability
Mathematics
Zdroj: PLoS ONE, Vol 14, Iss 1, p e0210741 (2019)
PLoS ONE
ISSN: 1932-6203
Popis: Relative permeability is an important attribute influencing subsurface multiphase flow. Characterization of relative permeability is necessary to support activities such as carbon sequestration, geothermal energy production, and oil and gas exploration. Previous research efforts have largely neglected the relative permeability of wellbore cement used to seal well bores where risks of leak are significant. Therefore this study was performed to evaluate fracturing on permeability and relative permeability of wellbore cement. Studies of relative permeability of water and air were conducted using ordinary Portland cement paste cylinders having fracture networks that exhibited a range of permeability values. The measured relative permeability was compared with three models, 1) Corey-curve, often used for modeling relative permeability in porous media, 2) X-curve, commonly used to represent relative permeability of fractures, and 3) Burdine model based on fitting the Brooks-Corey function to fracture saturation-pressure data inferred from x-ray computed tomography (XCT) derived aperture distribution results. Experimentally-determined aqueous relative permeability was best described by the Burdine model. Though water phase tended to follow the Corey-curve for the simple fracture system while air relative permeability was best described by the X-curve.
Databáze: OpenAIRE
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