| 摘要 |
FIELD: oil-producing industry, particularly, compounds for control of formation permeability and water shutoff; applicable for raising of oil recovery from nonuniform oil formations. SUBSTANCE: compound contains water-soluble polymer of polyacrylamide type or carboxymethyl cellulose or hydrolyzed nitrile fiber, sodium humate and water with the following ratio of components, wt. %: sodium humate, 0.3-3.0; water-soluble polymer of polyacrylamide type, or carboxymethyl cellulose, or hydrolyzed nitrile fiber, 0.01-2.5; water, the balance. EFFECT: higher efficiency of formation treatment. 1 cl, 6 tbl, 4 ex
|
