Knuckle-swivel for drilling wells

F - Mech Eng,Light,Heat,Weapons – 16 – C

Patent

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Details

F16C 11/00 (2006.01) E21B 17/02 (2006.01) E21B 17/05 (2006.01) F16C 11/08 (2006.01) F16G 11/08 (2006.01)

Patent

CA 2428333

A knuckle-swivel (10) is used with well drilling equipment for protecting helical wound line (62), which may be wire rope, cable and/or strand, against torsional forces and also providing for angular displacement of sinker bars or other tools during wireline strip over operations to minimize interference with rig equipment (80) when pulling pipe or tool (64) from a well head.

L'invention se rapporte à une tête articulée tournante (10) utilisée avec un matériel de forage de puits et permettant de protéger un câble hélicoïdal enroulé (62) pouvant être un câble métallique, un câble et/ou un toron, contre des forces de torsion, permettant également un déplacement angulaire de barres de charge ou d'autres outils pendant que le câble métallique est enlevé lors de manoeuvres afin de réduire au minimum toute gêne par rapport au matériel de forage (80) lorsque des tubes ou des outils (64) sont retirés d'une tête de puits.

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