E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/00 (2006.01)
Patent
CA 2357544
An apparatus 201 for running tubulars 213 into a borehole comprises a body 202 provided with a wedge lock assembly 212, and a hydraulically operable grapple 210 to mechanically grip the inside wall of a tubular 213 to be run into, or withdrawn from, the borehole. The grapple incorporates positive locking means to prevent inadvertent release of the grapple. Furthermore the body comprises means 214 to prevent spillage of drilling fluid when the body is withdrawn from the tubular, a sealing packer 215 for engagement with the tubular to permit fluid to be circulated within the tubular, and a stabbing guide 216.
Bennett Jones Llp
Tesco Corporation
Weatherford/lamb Inc.
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