Thin Under Gas Oil Rims - New Technology for Efficient Oil Production Using Foam Generating Oil/Water Polymers

Abstract

Worldwide experience shows that óil production from thin onder gas cup zones with active aquifer is not efficient doe to quick gas/water breakthrough and depends on oil column thickness and the ratio between gas cap and oil part thickness . New WAG Technology básed on injection of water solution of oil/water soluble polymers for efficient oil production from thin (5-15m) oil rime have been developed . Results of lab studies and simulation are discuseed . New WAG technology can be used for production of both, light and heavy oils . For heavy oils this technology can be considered to be as al#emative to thermal EOR .

Enhanced oil recovery

“…For heavy oils, this technology can be considered as an alternative to thermal EOR [159]. The water-alternating gas technology based on the injection of water solution with oil-and water-soluble polymers seems to be promising to stimulate such wells.…”