MODIFICATION OF RHEOLOGICAL PROPERTIES OF VISCOELASTIC SURFACE ACTIVE SUBSTANCE Russian patent published in 2011 - IPC E21B43/22 E21B43/267 C09K8/68 C09K8/70 C09K8/80 

Abstract RU 2428563 C2

FIELD: oil and gas production.

SUBSTANCE: modifier reducing time for recovery upon effect of shearing force of liquid medium on base of viscoelastic surface-active substance for process treatment of underground bed of deposit corresponds to fibrous substance or substance in form of particles, or their mixture in concentration sufficient for time of recovery upon effect of shearing force equal to 60 seconds or less, where concentration amounts to approximately 0.0001% to approximately 5 % wt of total weight of liquid medium. The inventions are developed in dependent points.

EFFECT: facilitation of time for recovery of fluid medium upon effect of shear force equal to 60 seconds or less.

20 cl, 1 tbl

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RU 2 428 563 C2

Authors

Gurmen M. Nikhat

Fredd Kristofer N.

Dates

2011-09-10Published

2006-12-01Filed