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2 119 938

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C1

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IPC

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Application

97101758/03, 1997-02-07

(22)

Actual filing date

1997-02-07

(45)

Published

1998-10-10

(72)

Inventor

Fabrichnaja A.L.Zajchenko L.P.Rastegaev B.A.Lantsberg N.L.Khlebnikov V.N.

(73)

Holder

Nauchno-Issledovatel'Skij Institut Po Neftepromyslovoj Khimii

ADDITION AGENT FOR THE DRILLING FLUID Russian patent published in 1998 - IPC

Abstract RU 2119938 C1

FIELD: hole drilling. SUBSTANCE: addition agent has the following components, wt. -%: nonionogenic surface-active substance of hydroxyalkylated type, 12-35; methyldiethylalkoxymethylammonium methyl sulfate of the general formula [C10-C18H21-27OCH2N(CH3)(C2H5)2]+SO4CH-3

or bis-(alkylpolyhydroxyethylene)-phosphate of the general formula [CnH2n+1O(C2H4•O)n]2POOH where n = 8; m = 6, or alkyl phosphate based on C10-C18-higher aliphatic alcohol or alkylbenzyldimethyl-ammonium chloride of the general formula C10-C18H21-37N(CH3)2CH2C6H5]Cl- or their mixture, 10.5-15; and hydrocarbon solution, the balance. Addition agent can be used in oil production industry. EFFECT: improved property and effectiveness of addition agent. 3 tbl

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RU 2 119 938 C1

Authors

Fabrichnaja A.L.

Zajchenko L.P.

Rastegaev B.A.

Lantsberg N.L.

Khlebnikov V.N.

Dates

1998-10-10—Published

1997-02-07—Filed

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