On the capillary pressure function in porous media based on relative permeabilities of two immiscible fluids:
A J Babchin1, R Bentsen2, B Faybishenko3
1Alberta Research Council, Edmonton, Canada; Tel Aviv University, Israel.
Abstract:
The objective of the current paper is to extend the theoretical approach and an analytical solution, which was proposed by Babchin and Faybishenko (2014), for the evaluation of a capillary pressure (Pc) curve in porous media based on the apparent specific surface area, using an explicit combination of the relative permeability functions for the wetting and nonwetting phases. Specifically, in the current paper, the authors extended this approach by the application of two types of capillary bundle models with different formulations of effective capillary radius formulae. The application of the new models allowed the authors to improve the results of calculations of the effective average contact angle given in the paper by Babchin and Faybishenko (2014). The validation of the new models for calculations of the Pc curve is also given in this paper using the results of a specifically designed core experiment, which was originally conducted by Ayub and Bentsen (2001).
More Related Videos
Related Concept Videos
Capillary Exchange
Fluid Pressure
According to Pascal's law, a fluid at rest will generate equal pressure in all directions. This pressure is measured as a force per unit area, and its magnitude depends on the fluid's specific...
Osmotic Pressure
Pressure of Fluids
Pressure Variation in a Fluid at Rest
When measuring pressure at two different levels within the fluid, the difference in...
Osmosis and Osmotic Pressure of Solutions


