COMPOUND FOR LIMITATION OF STRATUM WATER INFLOW Russian patent published in 1997 - IPC

FIELD: oil and gas industry. SUBSTANCE: enhanced action of compound on watered interlayers in oil stratum and equalization of acceptability profile of pumping borehole are achieved due to introduction of silicon compound soluble or dispersing in water into sediment forming compound containing water-soluble inorganic phosphate. Compound is used by pumping it into pressure well, and concentration of reagents is taken in following limits: water-soluble inorganic phosphate - 2-2- mass %, silicone compound soluble or dispersing in water - 0.05-2 mass %, water - the balance. EFFECT: high efficiency. 2 cl, 1 tbl