FIELD: chemistry.
SUBSTANCE: method includes creation of a gelling treatment fluid that comprises an aqueous base fluid, a base polymer containing an acrylamide monomer unit, an organic crosslinking agent containing a cross-linkable polymer selected from the group consisting of polyethyleneimine, polyvinylamine, any derivative thereof, any of salts and any combination thereof or polyvinylamine, any derivative thereof, any of salts thereof; and the gel time modifier containing at least one amino alcohol selected from the group consisting of ethanolamine, diethanolamine, triethanolamine, propanolamine, and any combination thereof, or comprising at least one compound selected from the group consisting of amino alcohols; and gelled fluid injection into the formation for processing.
EFFECT: permeability reduction using gelling liquid that contains a gel time modifier including at least one amino group.
21 cl, 9 dwg
