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2 268 909

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(51)

IPC

C09K8/04(2006-01-01)

(21) (22)

Application

2004117177/03, 2004-06-07

(24)

Start date

2004-06-07

(22)

Actual filing date

2004-06-07

(45)

Published

2006-01-27

(72)

Inventor

Grinevskij Igor' NikolaevichMikheev Vladimir LeonidovichRakhmatullin Robert KaramovichRadchenko Sergej SergeevichKarelina Natal'Ja Nikolaevna

(73)

Holder

Oao Npo Tekhnika"

DRILLING MUD Russian patent published in 2006 - IPC C09K8/04

Abstract RU 2268909 C1

FIELD: drilling wells; water-base drilling muds.

SUBSTANCE: drilling mud contains the following components, mass-%: clay, 1.5-3.0; carboxymethyl cellulose, 0.1-0.3;carboxymethyl starch, 0.75-1.5; mixture of ethers and amides of fatty acids and ethanol amides, 0.75-1.0; product of rectification of propylene oligomers of isoolefin type, fraction C₁₃-C₁₅, 0.75-1.5;lubricating additive, 0.5-3.0; the remainder being water.

EFFECT: enhanced inhibition ability of drilling mud at improved technological parameters.

2 tbl, 3 ex

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RU 2 268 909 C1

Authors

Grinevskij Igor' Nikolaevich

Mikheev Vladimir Leonidovich

Rakhmatullin Robert Karamovich

Radchenko Sergej Sergeevich

Karelina Natal'Ja Nikolaevna

Dates

2006-01-27—Published

2004-06-07—Filed