E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/14 (2006.01) E21B 19/00 (2006.01)
Patent
CA 2742250
A mouse hole damper device (1) positioned at the bottom portion (4) of a mouse hole pipe (2), the mouse hole damper (1) being arranged to dampen an impact from an object (28) falling in the mouse hole pipe (2), and the mouse hole damper (1) including a material (36) which has been worked into forming walls around elongated openings (34), and the material (36) being arranged in such a way that the openings (34) are, in the main, parallel to the longitudinal axis (13) of the mouse hole pipe (2).
L'invention porte sur un dispositif d'amortissement de trou de souris (1), positionné à la partie inférieure (4) d'un tuyau de trou de souris (2), l'amortisseur de trou de souris (1) étant agencé de façon à amortir un impact à partir d'un objet (28) tombant dans le tuyau de trou de souris (2), et l'amortisseur de trou de souris (1) renfermant un matériau (36) qui a été travaillé sous la forme de parois de formation autour d'ouvertures allongées (34), et le matériau (36) étant agencé d'une telle manière que les ouvertures (34) sont principalement parallèles à l'axe longitudinal (13) du tuyau de trou de souris (2).
National Oilwell Varco Norway As
Ridout & Maybee Llp
LandOfFree
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