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2 468 057

(13)

(51)

IPC

C09K8/24(2006-01-01)

(21) (22)

Application

2011108177/03, 2011-03-02

(24)

Start date

2011-03-02

(22)

Actual filing date

2011-03-02

(45)

Published

2012-11-27

(72)

Inventor

Gajdarov Mitalim Magomed-RasulovichSharafutdionov Zarif ZakievichKhubbatov Andrej AtlasovichNorov Azat DavronovichNikolaev Nikolaj Ivanovich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennost'Ju Institut Prirodnykh Gazov I Gazovykh Tekhnologij Gazprom Vniigaz"

INHIBITING DRILL FLUID Russian patent published in 2012 - IPC C09K8/24

Abstract RU 2468057 C2

FIELD: oil and gas industry.

SUBSTANCE: invention refers to oil and gas industry, and namely to drill fluids and compositions on water base, which are mainly used during drilling of unstable clay rocks. Drill fluid includes the following, wt %: highly colloidal bentopowder PMBV 6-15, water-soluble polymer - cationic coagulant Rosflok 99M 2-6, and water is the rest.

EFFECT: improving inhibiting capability of drill fluid for clays; increasing salt tolerance and heat resistance.

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RU 2 468 057 C2

Authors

Gajdarov Mitalim Magomed-Rasulovich

Sharafutdionov Zarif Zakievich

Khubbatov Andrej Atlasovich

Norov Azat Davronovich

Nikolaev Nikolaj Ivanovich

Dates

2012-11-27—Published

2011-03-02—Filed