A connection arrangement for a two-piece annular body

Details A connection arrangement for a two-piece annular body A connection arrangement for a two-piece annular body

E - Fixed Constructions

21

B

E21B 17/10 (2006.01)

Patent

CA 2397299

A drill pipe and casing protector comprises an annular body having two pieces (100) with identical edges. A first edge (110) includes at least two opposing formations (115, 120) longitudinally formed thereon whereby when one piece is inverted with respect to the either piece, the first edges mate to form a pivotable connection allowing the body to be opened and closed about a pipe. The second edges (150) of each piece include opposing interlocks (135) which form an aperture along the second edge when the body is closed. The aperture receives a locking pin to retain the body in a closed position around a drill pipe as well as around a bushing assembly.

L'invention concerne un tube de forage et un protecteur de cuvelage, comprenant un corps annulaire constitué de deux pièces à bords identiques. Un premier bord comprend au moins deux formations opposées formées longitudinalement sur ledit bord ce qui permet, lorsqu'une pièce est inversée par rapport à l'autre pièce, aux premiers bords de chaque pièce de s'accoupler de façon à former une connexion pivotante permettant de fermer ou d'ouvrir ledit corps autour d'un tube. Les seconds bords de chaque pièce comprennent des verrouillages réciproques opposés formant une ouverture le long du second bord lorsque le corps est fermé. L'ouverture reçoit une tige de verrouillage qui retient le corps en position fermée autour du tube de forage et de l'ensemble bague.

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