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RU2002111528A - Casing check valve - Google Patents

Casing check valve

Info

Publication number
RU2002111528A
RU2002111528A RU2002111528/03A RU2002111528A RU2002111528A RU 2002111528 A RU2002111528 A RU 2002111528A RU 2002111528/03 A RU2002111528/03 A RU 2002111528/03A RU 2002111528 A RU2002111528 A RU 2002111528A RU 2002111528 A RU2002111528 A RU 2002111528A
Authority
RU
Russia
Prior art keywords
check valve
casing check
central channel
disk
casing
Prior art date
Application number
RU2002111528/03A
Other languages
Russian (ru)
Other versions
RU2224088C2 (en
Inventor
Виктор Иванович Юрков
Игорь Владимирович Свиридов
Илья Вадимович Неудачин
Павел Викторович Ершов
Original Assignee
ООО "Нефтегазмаш-Технологии"
Filing date
Publication date
Application filed by ООО "Нефтегазмаш-Технологии" filed Critical ООО "Нефтегазмаш-Технологии"
Priority to RU2002111528/03A priority Critical patent/RU2224088C2/en
Priority claimed from RU2002111528/03A external-priority patent/RU2224088C2/en
Publication of RU2002111528A publication Critical patent/RU2002111528A/en
Application granted granted Critical
Publication of RU2224088C2 publication Critical patent/RU2224088C2/en

Links

Claims (1)

Клапан обратный для обсадной колонны, содержащий корпус с размещенным в нем седлом под шаровой затвор и расположенный под ним диск с центральным каналом и с периферийными отверстиями, отличающийся тем, что диск размещен с возможностью осевого перемещения, а центральный канал сверху снабжен подпружиненным нормально закрытым обратным клапаном.A check valve for a casing string, comprising a housing with a seat located under it for a ball valve and a disk located beneath it with a central channel and peripheral openings, characterized in that the disk is axially displaceable and the central channel is equipped with a spring-loaded normally closed non-return valve .
RU2002111528/03A 2002-04-29 2002-04-29 Return valve for casing string RU2224088C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2002111528/03A RU2224088C2 (en) 2002-04-29 2002-04-29 Return valve for casing string

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2002111528/03A RU2224088C2 (en) 2002-04-29 2002-04-29 Return valve for casing string

Publications (2)

Publication Number Publication Date
RU2002111528A true RU2002111528A (en) 2003-11-27
RU2224088C2 RU2224088C2 (en) 2004-02-20

Family

ID=32172633

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2002111528/03A RU2224088C2 (en) 2002-04-29 2002-04-29 Return valve for casing string

Country Status (1)

Country Link
RU (1) RU2224088C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2516649C (en) * 2003-02-27 2010-01-19 Weatherford/Lamb, Inc. Drill shoe
RU2299310C2 (en) * 2005-06-27 2007-05-20 Научно-производственный кооператив "Техноимпульс" Casing pipe valve
RU2412335C1 (en) * 2009-10-14 2011-02-20 Общество с ограниченной ответственностью Научно-производственная фирма "Пакер" Oil well pumping unit with packer for extracting oil under abnormal conditions
RU2658851C1 (en) * 2017-08-14 2018-06-25 Общество с ограниченной ответственностью "Гидробур-сервис" Circulation adapter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4328866A (en) * 1980-03-07 1982-05-11 Halliburton Company Check valve assembly
SU1314004A1 (en) * 1985-07-10 1987-05-30 Грозненское Управление Буровых Работ Производственного Объединения "Грознефть" Apparatus for pressure-testing of drill pipes
SU1654526A1 (en) * 1989-04-03 1991-06-07 Институт Геологии И Разведки Нефтяных И Газовых Месторождений Nonreturn valve
RU2011797C1 (en) * 1992-01-27 1994-04-30 Владимир Федорович Францев Well cut-off valve
RU2107805C1 (en) * 1996-08-26 1998-03-27 Самарский опытный завод нефтяного машиностроения Акционерного общества "НЕФМА" Non-return valve for drilling string

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