E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/112 (2006.01)
Patent
CA 2461940
A perforator apparatus for repeated punching of holes at a multiple of selected locations in tubing of a well bore. The apparatus is activated for repeated punching operations by a fluid control valve mechanism that controls opposed directional movement of a piston connected to a punch of the perforator apparatus.
L'invention concerne un appareil perforateur permettant de découper de manière répétée des trous à de multiples emplacements sélectionnés d'un tubing disposé dans un puits de forage. Ledit appareil est activé afin d'effectuer des opérations de découpe répétées à l'aide d'un mécanisme de soupape de régulation de fluide qui régule le déplacement directionnel opposé d'un piston connecté à l'élément de découpe de l'appareil perforateur.
Marsh Brent
Parker Robert
Pollock Timothy David
Riches Mckenzie & Herbert Llp
Varco I/p Inc.
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