REAGENT FOR DESTRUCTION OF SEDIMENTATING CLAYEY FORMATIONS IN BOTTOM-HOLE ZONE OF BED AFTER DRILLING OR OVERHAUL OF WELL Russian patent published in 1998 - IPC

FIELD: oil and gas production industry. SUBSTANCE: this relates to oil and gas production industry and to underground storage of gas in porous beds, and particularly to reagents for destruction of CLAYEY formations in bottom-hole zone of bed with purpose of restoring natural productivity of wells after their drilling or overhaul. Used as destructing reagent is waste from production of synthetic fatty acids at stage of flushing products from liquid-phase oxidation of hydrocarbons. Reagent is injected through well into bottom-hole zone of bed and retained there during period of 10-20 h. Application of aforesaid reagent improves efficiency of destructing structure of CLAYEY formations with resulted restoration of natural productivity of well. EFFECT: higher efficiency. 3 tbl