USE OF ALKALI METAL SILICIDES IN POST-CHOPS OILFIELD RECOVERY OPERATIONS

摘要

FIELD: oil and gas industry.;SUBSTANCE: group of inventions relates to oil production. Method for stimulating enhanced oil recovery from a post-cold heavy oil production with sand (CHOPS) oil-bearing formation includes: flushing a wellbore in a post-CHOP oil-bearing formation having at least one wormhole to expel water from the wellbore and near wellbore region; injecting alkali metal silicide in at least one wormhole in the post-CHOPS oil-bearing formation; injecting water or alcohol into at least one wormhole to respond with injectable alkali metal silicide to stimulate the flow of oil inside the post-CHOPS oil-bearing formation; extraction of sand and oil from the post-CHOPS oil-bearing formation.;EFFECT: stimulating enhanced oil recovery from a post-cold heavy oil production with sand oil-bearing formation.;22 cl, 12 dwg, 2 tbl