COMPOSITION FOR RESTRICTING INFLOW OF FORMATION WATER

摘要

FIELD: oil production. SUBSTANCE: increased efficiency of composition effect on oil formation gaps washed with water and levelling the profile of intake capacity of oil well at the expense of injecting water-soluble silicon compound into deposition-generating composition comprising water-soluble inorganic sulfate. The composition is pumped in the injection well with concentration of agents ranging from: 3 - 16 wt. % water-soluble inorganic sulfate; 0.1 - 3 wt. % water-soluble silicon compound, the balance being water. EFFECT: higher efficiency. 3 cl