METHOD FOR TREATING UNDERGROUND OIL-BEARING FORMATION WITH AREA OF HIGHER PERMEABILITY AND AREA OF LOWER PERMEABILITY Russian patent published in 1996 - IPC

Abstract RU 2062864 C1

FIELD: oil production. SUBSTANCE: method includes pumping liquid in the area of higher permeability to reduce this permeability. The liquid represents a foam with polymer, joining agent able to join the above polymer, surface-active substance, liquid dissolver and frothing gas. EFFECT: high efficiency. 13 cl

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RU 2 062 864 C1

Authors

Robert D. Sidansk[Us]

Dates

1996-06-27—Published

1991-04-26—Filed