METHOD FOR TREATING BOTTOM-HOLE ZONE OF INJECTION WELL

摘要

FIELD: oil and gas production industry. SUBSTANCE: application of method ensures levelling of well injectivity profile. According to method, pressure-pushed into bottom-hole zone of well, namely into perforation interval, is acid-resistant plugging material, and technological time delay is undertaken. Perforation interval is filled with solution of muriatic acid. Metallic magnesium is introduced into perforation interval. Proportion between muriatic acid solution and magnesium is preset as above stoichiometric level. Technological time delay is undertaken for undergoing of reaction between muriatic acid solution and magnesium, and for heating of muriatic acid solution. Muriatic acid solution is being pressure-pushed at gradual reduction of pushing pressure down to pressure of injecting working agent in development of deposit. Technological time delay is undertaken for undergoing of muriatic acid reaction in bottom-hole zone of well. EFFECT: higher solution.