DRILLING MUD FOR DRILLING IN CLAY DEPOSITS Russian patent published in 2016 - IPC C09K8/24 

Abstract RU 2591284 C1

FIELD: mining.

SUBSTANCE: invention relates to water-based drilling fluids and can be used when drilling oil and gas wells, mainly in drilling unstable swelling of clays and mudstone. Drilling mud contains, wt%: clay powder 5-8; polyelectrolyte “VPK-402” 3-5; amine emulsion “Rosfloc PV” 0.5-2; water is rest.

EFFECT: reduced consumption of polyelectrolyte “VPK-402” and improved structure of rheological and filtration properties of solution.

1 cl, 1 tbl

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RU 2 591 284 C1

Authors

Gajdarov Azamat Mitalimovich

Khubbatov Andrej Atlasovich

Gajdarov Mitalim Magomed-Rasulovich

Alekseeva Nina Viktorovna

Dates

2016-07-20Published

2015-03-05Filed