E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 7/08 (2006.01) E21B 7/06 (2006.01) E21B 23/02 (2006.01) E21B 43/10 (2006.01) E21B 47/09 (2006.01)
Patent
CA 2591698
A whipstock, a running/retrieval tool and a system for tieing back a liner from a well bore casing are disclosed. The whipstock comprises a main body having an outer surface, a sloping face portion having a slope angle, and an extension formed on such that the diameter of the extension is greater than the diameter of the main body. The running/retrieval comprises a housing including a retractable latch biased radially outwardly from the tool formed to fit within a slot formed on a downhole tool. The system for tieing back a liner from a well bore casing comprises a well bore casing including a window opening defined by edges, the edges including beveled portions and a tieback hanger having an anchored end for attachment to the casing, the anchored end having thereon a flared tab for engaging against the beveled portions of the window opening edges.
L'invention concerne un sifflet déviateur, un outil de marche/récupération et un système de raccordement d'un manchon d'un tubage de puits de forage. Le sifflet déviateur comprend un corps principal ayant une surface extérieure, une partie de la face inclinée ayant un angle d'inclinaison, ainsi qu'une extension formée de manière à ce que le diamètre de l'extension soit plus grand que le diamètre du corps principal. L'outil de marche/récupération comprend un boîtier incluant un verrouillage escamotable orienté de façon radiale vers l'extérieur de l'outil formé pour correspondre à une encoche d'un outil de fond. Le système de raccordement d'un manchon d'un tubage de puits de forage comprend un tubage de puits de forage y compris une ouverture définie par des rebords, les rebords comprennent les parties biseautées et un support de raccordement ayant un bout ancré utilisé pour la fixation au tubage, le bout ancré compte un onglet évasé à engager contre les parties biseautées des rebords de l'ouverture.
Begg Stephen M.
George Grant E.e.
Schlumberger Canada Limited
Smart & Biggar
LandOfFree
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