Plug for use in wellbore operations and apparatus for...

Details Plug for use in wellbore operations and apparatus for... Plug for use in wellbore operations and apparatus for...

E - Fixed Constructions

21

B

E21B 33/05 (2006.01) E21B 33/16 (2006.01)

Patent

CA 2309218

An apparatus for launching at least two plugs, said apparatus comprising a mandrel (2), a lower plug (22) and an upper plug (21) releasably disposed with respect to said mandrel (2), wherein said upper plug (21) comprises a body (23) having a flow path (24) therethrough and a cap (25) for blocking fluid flow through said flow path (24) characterised in that said cap (25) is detachable from said body (23) in use if the upper plug (21) is prematurely ejected.

On décrit un appareil servant à envoyer au moins deux bouchons, cet appareil comprenant un mandrin (2), un bouchon inférieur (22) et un bouchon supérieur (21) placés de manière détachable par rapport au mandrin (2). Le bouchon supérieur (21) comprend un corps doté d'un passage (24) pour l'écoulement et un chapeau (25) prévu pour bloquer l'écoulement du fluide dans ledit passage (24); le chapeau (25) se caractérisant par le fait qu'il est détachable du corps (23) en utilisation si le bouchon supérieur (21) est éjecté trop tôt.

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