It has been showed by laboratory research that the resistance factor and the effective viscosity of a petroleum carboxylate/alkaline/HPAM flooding system flowing through porous media both in and without presence of residual oil have been investigated.The resistance factor and the ratio of the resistance factor to residual resistance factor of the flooding system in presence of residual oil are decreased substantially. The effective viscosity of the system flowing through porous media both in and without presence of residual oil is lower than the viscosity measured by viscometer.
Journal of Jianghan Petroleum Institute
chemical displacement of reservoir oils
[sufractant/alkaline/polymer flooding system]
inter facial tension