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2 593 159

(13)

(51)

IPC

C09K8/22(2006-01-01)

(21) (22)

Application

2015107708/05, 2015-03-05

(24)

Start date

2015-03-05

(22)

Actual filing date

2015-03-05

(45)

Published

2016-07-27

(72)

Inventor

Gajdarov Azamat MitalimovichKhubbatov Andrej AtlasovichGajdarov Mitalim Magomed-RasulovichAlekseeva Nina Viktorovna

(73)

Holder

Obshshestvo S Ogranichennoj Otvetstvennostyu Institut Prirodnykh Gazov I Gazovykh Tekhnologij Gazprom Vniigaz"

DRILLING MUD Russian patent published in 2016 - IPC C09K8/22

Abstract RU 2593159 C1

FIELD: mining.

SUBSTANCE: invention relates to water-based drilling fluids and can be used when drilling oil and gas wells, mainly when drilling unstable clay rocks and opening productive formations. Drilling mud contains, wt%: clay powder - 5-8; polyelectrolyte VPK-402 - 3-5; water - soluble cellulose ether - 0.3-1.2; water - the rest.

EFFECT: invention reduces consumption of polyelectrolyte VPK-402 and improves structural-rheological and filtration properties of the drilling mud.

1 cl, 1 tbl, 10 ex

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RU 2 593 159 C1

Authors

Gajdarov Azamat Mitalimovich

Khubbatov Andrej Atlasovich

Gajdarov Mitalim Magomed-Rasulovich

Alekseeva Nina Viktorovna

Dates

2016-07-27—Published

2015-03-05—Filed