METHOD TO STABILISE AQUEOUS SOLUTION OF POLYACRYLAMIDE Russian patent published in 2012 - IPC C08L33/26 E21B43/22 

Abstract RU 2466160 C1

FIELD: oil and gas production.

SUBSTANCE: method to stabilise an aqueous solution of polyacrylamide consists in preparation of polyacrylamide in water with concentration from 0.15 to 0.30 wt %. Then polyacrylamide is dispersed by mixing of the produced solution with angular speed from 14000 rpm to 17000 rpm.

EFFECT: method makes it possible to reduce energy intensity and time for solution preparation, to preserve rheological properties of a solution within a long period of time, to increase efficiency of using the produced solution due to stabilisation of its dynamic viscosity.

3 dwg

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RU 2 466 160 C1

Authors

Sokolov Aleksandr Fedorovich

Rassokhin Andrej Sergeevich

Nikolaev Valerij Aleksandrovich

Ryzhov Aleksej Evgen'Evich

Rassokhin Sergej Gennad'Evich

Dates

2012-11-10Published

2011-05-10Filed