Snubbing unit drilling system

Details Snubbing unit drilling system Snubbing unit drilling system

E - Fixed Constructions

21

B

E21B 19/18 (2006.01) E21B 19/00 (2006.01) E21B 19/16 (2006.01)

Patent

CA 2437241

A snubbing unit drilling system (1) that includes a power tong (2) and a hydraulically activated back-up tong (3). A mounting structure (20) having a rotating slip assembly (5) positioned on the mounting structure (20) such that the rotating slip assembly (5) rotates relative to said mounting structure (20). A plurality of support legs (16) are attached between the power tong (2), the back-up tong (3), and the mounting structure (20) such that the support legs (16) prevent relative rotation between the power tong (2) and the mounting structure (20).

L'invention concerne un système de foreuse sous pression (1) comportant une clé à commande hydropneumatique (2) et une clé de dévissage hydraulique (3). Ledit système comporte également une structure de montage (20) comportant un ensemble de coins de retenue rotatif (5) disposé sur la structure de montage (20) de manière que l'ensemble de coins de retenue rotatif (5) tourne par rapport à ladite structure de montage (20). Une pluralité de tiges portantes (16) est fixée entre la clé à commande hydropneumatique (2), la clé de dévissage hydraulique (3), et la structure de montage (20) de manière que les tiges portantes (16) empêchent la rotation relative entre la clé à commande hydropneumatique (2) la structure de montage (20).

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