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2 430 234

(13)

(51)

IPC

E21B17/10(2006-01-01)

(21) (22)

Application

2010116864/03, 2010-04-29

(24)

Start date

2010-04-29

(22)

Actual filing date

2010-04-29

(45)

Published

2011-09-27

(72)

Inventor

Volodin Aleksej MikhajlovichSorokin Vladislav AlekseevichKlinov Andrej AleksandrovichDeev Aleksandr ViktorovichLarionov Anatolij NikolaevichVasin Aleksej NikolaevichPetrov Nikolaj PavlovichAndrianov Oleg Nikolaevich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo

SPRING CENTRALISER WITH ITS HOLDER ON CASING Russian patent published in 2011 - IPC E21B17/10

Abstract RU 2430234 C1

FIELD: oil and gas production.

SUBSTANCE: spring centraliser consists of solid case with centralising ribs. Also, the centraliser additionally includes holders made with external thread and pipes with flared ends and internal thread interacting with external thread of the said holders.

EFFECT: raised reliability and efficiency of spring centraliser implementation.

17 cl, 5 dwg

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RU 2 430 234 C1

Authors

Volodin Aleksej Mikhajlovich

Sorokin Vladislav Alekseevich

Klinov Andrej Aleksandrovich

Deev Aleksandr Viktorovich

Larionov Anatolij Nikolaevich

Vasin Aleksej Nikolaevich

Petrov Nikolaj Pavlovich

Andrianov Oleg Nikolaevich

Dates

2011-09-27—Published

2010-04-29—Filed