Peculiar Features of the Filtration Flow through Nonstationary Dispersed Media Presented by Salinated Clastic Reservoir Rocks
The peculiar features of the filtration flow through nonstationary dispersed media were studied by the example of water filtration through salinated reservoir rocks of clastic type. It was found out that washaway of salts from reservoir rocks by water improves their permeability and porosity. It is also demonstrated that in the process of water filtration, increase of filtration resistance and reduction of the effective permeability in terms of water occur due to colmatage - destruction of the system of main filtering channels by migrating solids formed as the result of salt washaway. It is recommended to take into account the detected effects in calculations of multi-phase filtration during prediction of oil deposit development parameters with the use of waterflood operations.