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2 374 295

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(51)

IPC

C09K8/52(2006-01-01)

C09K8/78(2006-01-01)

(21) (22)

Application

2008113886/03, 2008-04-08

(24)

Start date

2008-04-08

(22)

Actual filing date

2008-04-08

(45)

Published

2009-11-27

(72)

Inventor

Panikarovskij Evgenij ValentinovichPanikarovskij Valentin Vasil'EvichShupletsov Vladimir Arkad'EvichKuz'Mich Ljudmila Ivanovna

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju

COMPOSITION FOR TREATING WELL BOTTOM ZONE Russian patent published in 2009 - IPC C09K8/52 C09K8/78

Abstract RU 2374295 C1

FIELD: chemistry.

SUBSTANCE: invention relates to oil-and-gas industry, specifically to intensification of hydrocarbon stimulation. The composition for treating bottom zones of wells drilled on polymer-clay solutions contains hydrochloric acid, diethyleneglycol and water, with the following ratio of components, wt %: hydrochloric acid 15.0 to 20.0; diethyleneglycol 1.0 to 3.0; water 77.0 to 84.0.

EFFECT: efficient restoration of filtration characteristics of bottom zones of wells, drilled on polymer-clay solutions.

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RU 2 374 295 C1

Authors

Panikarovskij Evgenij Valentinovich

Panikarovskij Valentin Vasil'Evich

Shupletsov Vladimir Arkad'Evich

Kuz'Mich Ljudmila Ivanovna

Dates

2009-11-27—Published

2008-04-08—Filed