Tubular joint detection system

Details Tubular joint detection system Tubular joint detection system

E - Fixed Constructions

21

B

E21B 19/16 (2006.01)

Patent

CA 2409371

Apparatus for connecting tubulars comprises tongs (1, 11) for gripping the tubulars, having openings (3, 13) which can be aligned to allow tubulars to enter the tongs, and a detection apparatus (15) for detecting the location of a joint between the tubulars. The detection apparatus comprises a set of keys (19) disposed along an axis substantially parallel to the axis of the tubulars, the keys being individually displaceable on contact with the tubulars as the tubulars enter the tongs through the openings. The detection apparatus further comprises a set of sensor means (22), each arranged to detect displacement of a corresponding key. The position of the joint can then be determined from the displacement of the keys.

L'invention concerne un appareil permettant d'assembler des tubes. Cet appareil comprend des pinces (1, 11) servant à saisir les tubes, des ouvertures (3, 13) qui peuvent être alignées de façon que les tubes puissent pénétrer dans les pinces et un appareil de détection (15) servant à détecter l'emplacement d'un raccord entre les tubes. Cet appareil de détection comprend un ensemble de clés (19) disposées le long d'un axe sensiblement parallèle à l'axe des tubes, ces clés pouvant être individuellement amenées en contact avec les tubes lorsque ces derniers pénètrent dans les pinces à travers les ouvertures. Cet appareil de détection comprend en outre un ensemble de moyens de détection (22) conçus pour détecter le déplacement d'une clé correspondante. La position du raccord peut ensuite être déterminée à partir du déplacement des clés.

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