METHOD FOR ISOLATING WATER INFLUXES OR ABSORPTION AREAS IN A WELL Russian patent published in 2004 - IPC

FIELD: petroleum extracting industry. SUBSTANCE: method includes consecutive pumping into the well of nepheline-based gel-forming material, separator and 14-16% water solution of hydrochloric acid. As gel-forming material dispersion of syenite alkali-aluminum concentrate in bearing fluid is used at volumetric relation of one to other of 1:(1.9-2.1) and at volumetric relation of said dispersion to said water solution of hydrochloric acid accordingly of (0.9-1.1):1. EFFECT: increased technological and practical effectiveness of isolating water influxes or absorption areas in a well. 1 ex