A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Permeability Reduction in Water Sensitivity of Sandstones
Abstract A model was developed to describe the rapid decline of permeability of Berea sandstone resulting from its water sensitivity. The model is based on the release and capture of clay particles. The release of clay particles from the pore wall is approximated as a first order decay process and the rate at which particles leave the suspension to plug the pores is assumed to be directly proportional to the particle concentration in the suspension. The resulting equations are solved in conjunction with a semi-empirical relationship relating the local permeability and the amount of clay particles captured to determine the overall permeability of the sandstone core as a function of time. Model predictions are in agreement with experimental observations.
Permeability Reduction in Water Sensitivity of Sandstones
Abstract A model was developed to describe the rapid decline of permeability of Berea sandstone resulting from its water sensitivity. The model is based on the release and capture of clay particles. The release of clay particles from the pore wall is approximated as a first order decay process and the rate at which particles leave the suspension to plug the pores is assumed to be directly proportional to the particle concentration in the suspension. The resulting equations are solved in conjunction with a semi-empirical relationship relating the local permeability and the amount of clay particles captured to determine the overall permeability of the sandstone core as a function of time. Model predictions are in agreement with experimental observations.
Permeability Reduction in Water Sensitivity of Sandstones
Khilar, K. C. (author) / Fogler, H. S. (author)
1981-01-01
20 pages
Article/Chapter (Book)
Electronic Resource
English
Experimental Study on Stress Sensitivity of Ultra-Low Permeability Sandstones
| Tema Archive | 2013
An improved particles model for stress sensitivity in low-permeability sandstones
| Taylor & Francis Verlag | 2016
Permeability Evolution in Artificial Sandstones: Pre- and Post-Pore Collapse
| Springer Verlag | 2025
Investigation of Dynamic Effect of Capillary Pressure in Ultra-Low Permeability Sandstones
| Online Contents | 2015