METHOD FOR RECOVERY OF LIQUID HYDROCARBONS (VERSIONS) Russian patent published in 1997 - IPC

Abstract RU 2071554 C1

FIELD: mining art. SUBSTANCE: method involves pumping foam, strengthened with polymer, to underground formation with cracks through one of wells. Foam contains polymer selected from synthetic one or biopolymer of surface-active substance, water solvent and gas. EFFECT: higher efficiency. 42 cl, 3 dwg

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RU 2 071 554 C1

Authors

Robert D.Sidansk[Us]

Dates

1997-01-10—Published

1992-01-07—Filed