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Patent Searching and Data


Title:
DEVICE FOR CLOSING OFF A COMPLICATION ZONE IN A WELL
Document Type and Number:
WIPO Patent Application WO/1990/005833
Kind Code:
A1
Abstract:
A device for closing off a complication zone in a well comprises a column of profiled pipes (1) with cylindrical sections (2) at its ends and a mechanism intended for mounting the column of the profiled pipes (1) in the well and mounted with the possibility of reciprocating movements inside the column of the profiled pipes (1). Said mechanism comprises a widener (14) of the cylindrical sections (2) of the profiled pipes (1), intended to be mounted inside the upper cylindrical section (2) of the column of the profiled pipes (1) and a roller-expanding mechanism (201) which is mounted above the column of the profiled pipes (1), comprises a casing (24) with roller-expanding elements (24) and is rigidly connected to the widener (14).

Inventors:
ABDRAKHMANOV GABDRASHIT SULTAN (SU)
UTESHEV RASHIT AKHMEDULLOVICH (SU)
IBATULLIN RUSTAM KHAMITOVICH (SU)
JUSUPOV IZIL GALIMZYANOVICH (SU)
PEROV ANATOLY VASILIEVICH (SU)
ZAINULLIN ALBERT GABIDULLOVICH (SU)
MELING KONSTANTIN VIKTOROVICH (SU)
LAVRUSHKO BORIS VLADIMIROVICH (SU)
MINGAZOV ILMAS FALIKHOVICH (SU)
MUKHAMETSHIN ALMAZ ADGAMOVICH (SU)
FILIPPOV VITALY PETROVICH (SU)
ASFANDIYAROV KHALIM AKHMETOVIC (SU)
MIKHAILOVA TATYANA ALEXANDROVN (SU)
PARSHIN VLADIMIR SERGEEVICH (SU)
JUNYSHEV LEONID VLADIMIROVICH (SU)
PUZANOV ALEXANDR ALEXEEVICH (SU)
BALANDIN ALEXANDR PETROVICH (SU)
Application Number:
PCT/SU1988/000237
Publication Date:
May 31, 1990
Filing Date:
November 22, 1988
Export Citation:
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Assignee:
TATARSKY GNI I (SU)
International Classes:
E21B43/10; (IPC1-7): E21B29/10; E21B33/13
Foreign References:
SU108486A11957-11-30
SU609870A11978-06-05
SU827750A11981-05-07
SU976020A11982-11-23
SU1411434A11988-07-23
US2734580A1956-02-14
SU199819A
SU1424918A11988-09-23
US4308736A1982-01-05
GB1493946B
Other References:
See also references of EP 0397874A1
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