Key words: enhanced oil recovery, silica gel, suspension, injection well.
Technologies of enhanced oil recovery based on application of silica gel suspension are proposed. These include: the technology for improved depletion of productive strata at the late stages of development using viscoelastic colloidal suspension based on liquid glass and the technology for increased oil production using silica gel based compositions. Silica gel preparation and dispersion under field conditions are carried out using UPSG-1 mobile plant. Application of silica gel based technology resulted in average daily oil increment in the amount of 5.87 ton/day and profitability index of 1.52. The results confirm applicability and efficiency of dispersed silica gel injection for improving reservoir sweep efficiency.
