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2 492 208

(13)

(51)

IPC

C09K8/24(2006-01-01)

(21) (22)

Application

2011142948/03, 2011-10-24

(24)

Start date

2011-10-24

(22)

Actual filing date

2011-10-24

(45)

Published

2013-09-10

(72)

Inventor

Gajdarov Mitalim Magomed-RasulovichSharafutdionov Zarif ZakievichKhubbatov Andrej AtlasovichMirsajanov Denis VadimovichPolishchuchenko Vasilij Pavlovich

(73)

Holder

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

CATION-INHIBITING DRILLING MUD Russian patent published in 2013 - IPC C09K8/24

Abstract RU 2492208 C2

FIELD: oil and gas industry.

SUBSTANCE: drilling mud contains, wt %: clay powder 5-8; polyelectrolyte VPK-402 7-15; water - balance.

EFFECT: increased inhibiting ability in respect to clays, reduced filtration parameter, higher salt and heat resistance.

2 cl, 3 tbl

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RU 2 492 208 C2

Authors

Gajdarov Mitalim Magomed-Rasulovich

Sharafutdionov Zarif Zakievich

Khubbatov Andrej Atlasovich

Mirsajanov Denis Vadimovich

Polishchuchenko Vasilij Pavlovich

Dates

2013-09-10—Published

2011-10-24—Filed