BRIDGING COMPOSITION FOR ISOLATING THIEF ZONES Russian patent published in 2008 - IPC C09K8/467

Abstract RU 2328514 C1

FIELD: oil industry.

SUBSTANCE: bridging composition contains, in weight ratio: 100 of gel powder, 0.01-0.3 of polyoxiethylene, 2-3.5 of the water-swelling polymer AK-639, 5-10 of the hollow glass microspheres, 3-5 of the coal-alkali reagent, 400-500 of water.

EFFECT: improved clogging properties of composition due to increased durability and viscosity and elasticity.

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RU 2 328 514 C1

Authors

Kurochkin Boris Mikhajlovich

Lobanova Valentina Nikolaevna

Prusova Nina Leonidovna

Dates

2008-07-10—Published

2006-09-26—Filed