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2 068 080

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C1

(51)

IPC

(21) (22)

Application

96101079/03, 1996-01-30

(22)

Actual filing date

1996-01-30

(45)

Published

1996-10-20

(72)

Inventor

Mamedov B.A.Shakhverdiev A.Kh.

(73)

Holder

Tovarishchestvo S Ogranichennoj Otvetstvennost'Ju Firma

COMPOUND FOR WELL KILLING Russian patent published in 1996 - IPC

Abstract RU 2068080 C1

FIELD: drilling and operation of wells, particular compounds for well killing, mainly, for killing the troubled wells. SUBSTANCE: compound for well killing contains polyacrylamide, salt of multivalent metal, lignosulfonate, wood flour of spruce species and water. Multivalent metal, preferably, is used in form of potassium or sodium bichromate. EFFECT: increased polymerization time of solution, its adhesion properties and provision of solution with yield stress of 2000-3500 dyne/sq cm. 2 cl, 1 tbl

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RU 2 068 080 C1

Authors

Mamedov B.A.

Shakhverdiev A.Kh.

Dates

1996-10-20—Published

1996-01-30—Filed

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