E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
153/16, 166/62
E21B 29/10 (2006.01) B21D 41/02 (2006.01) E21B 43/10 (2006.01)
Patent
CA 1322151
ABSTRACT The device is intended for expanding profile pipes set in a well for patching off a troublesome zone, and also for straightening crumpled casings. The device comprises a housing having an expanding member mounted thereon in bearings on a journal exten- ding at an acute angle to the longitudinal axis of the housing. The expanding member is shaped as a spherical segment having its external surface defined by alterna- ting portions of a spherical surface and the lateral surfaces of cylinders whose geometric axes belong to a plane perpendicular to the axis of the journal.
609485
Abdrakhmanov Gabdrashit S.
Bogomolov Rodion M.
Meling Konstantin V.
Mikhailin Jury G.
Mingazov Salikhzyan M.
Abdrakhmanov Gabdrashit S.
Bogomolov Rodion M.
Marks & Clerk
Meling Konstantin V.
Mikhailin Jury G.
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