METHOD OF OIL POOL DEVELOPMENT Russian patent published in 2003 - IPC

Abstract RU 2210665 C2

FIELD: oil producing industry, particularly, methods of oil pool development by injection of physico-chemical substances. SUBSTANCE: method includes injection into formation of aqueous solution of sodium silicate. Viscosity of sodium silicate solution is selected so that mobility of displaced and displacing agent at initial stage of simulation are equal to each other. Then, concentration of sodium silicate in sodium is reduced to zero, and injected into formation is aqueous suspension of phosphogypsum - wastes of phosphoric acid production, with concentration of phosphogypsum in aqueous suspension amounting up to 0.1-10.0%. EFFECT: higher efficiency of oil pool development due to increased oil displacement efficiency from formation, formation coverage by stimulation and shutoff of water inflow to producing wells. 2 cl, 1 dwg, 2 tbl

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RU 2 210 665 C2

Authors

Krjuchkov V.I.

Nasibullin A.A.

Dates

2003-08-20—Published

2001-06-04—Filed