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2 458 959

(13)

(51)

IPC

C09K8/12(2006-01-01)

(21) (22)

Application

2011114532/03, 2011-04-13

(24)

Start date

2011-04-13

(22)

Actual filing date

2011-04-13

(45)

Published

2012-08-20

(72)

Inventor

Rakhimov Aleksandr ImanuilovichVershinin Denis Anatol'EvichMiroshnichenko Anna VladimirovnaRakhimova Ol'Ga Stanislavovna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Volgogradskij Gosudarstvennyj Tekhnicheskij Universitet

CLAYLESS DRILLING MUD Russian patent published in 2012 - IPC C09K8/12

Abstract RU 2458959 C1

FIELD: oil and gas production.

SUBSTANCE: clayless drilling mud that includes fluorine-containing acrylamide copolymer and acrylic acid and water contains copolymer of general expression: molecular weight 1.2·10⁶ with fluorine content up to 2%, with the following components ratio, wt %: said copolymer 0.1-0.15, water the rest.

EFFECT: stability of operating parameters up to 120 days at low temperatures.

1 tbl, 1 ex

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RU 2 458 959 C1

Authors

Rakhimov Aleksandr Imanuilovich

Vershinin Denis Anatol'Evich

Miroshnichenko Anna Vladimirovna

Rakhimova Ol'Ga Stanislavovna

Dates

2012-08-20—Published

2011-04-13—Filed