COMBINED METHOD OF EQUALIZING OF OIL DISPLACEMENT FRONT Russian patent published in 1999 - IPC

Abstract RU 2136860 C1

FIELD: oil-producing industry; particularly, methods of development of oil fields. SUBSTANCE: method includes injection of water and high-viscosity agent into formation with subsequent explosion or formation of hydraulic fracturing of such a power that formed fracturing zone equals radius of penetration of high- viscosity agent in the most low-permeable interlayer or close in permeability but considerably differing from highly permeable interlayers. EFFECT: higher oil recovery from nonuniform permeable formation. 1 dwg

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RU 2 136 860 C1

Authors

Kozlov N.F.

Panteleev A.S.

Persijantsev M.N.

Zagorodnev S.M.

Dates

1999-09-10—Published

1998-02-25—Filed