METHOD OF OIL DEPOSIT DEVELOPMENT Russian patent published in 2009 - IPC E21B43/16 

Abstract RU 2349742 C1

FIELD: mining.

SUBSTANCE: method consists in maintaining formation pressure by pushing gas-fluid fringe with displacement agent; fringe is generated in formation as result of rheo-chemical reaction between water solution of medium salt of carbonic acid with water soluble polymer of acryl row and acid solution, alternately pumped into formation through pressure well. As a displacement agent associated oil gas is pumped into the formation.

EFFECT: increased efficiency of system, maintaining formation pressure, formation coverage by displacement, increased oil yield of formation and utilisation of associated oil gas.

5 cl, 1 tbl

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RU 2 349 742 C1

Authors

Shakhverdiev Azizaga Khanbaba Ogly

Mandrik Il'Ja Ehmmanuilovich

Panakhov Gejlani Minkhadzh Ogly

Abbasov Ehl'Dar Mekhti Ogly

Dates

2009-03-20Published

2007-12-27Filed