E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/08 (2006.01) E21B 19/22 (2006.01)
Patent
CA 2664570
A pipe injector assembly is disclosed, comprising: a pipe injector that includes at least three tubing drive units radially arranged around a feed axis along which tubing is fed, the tubing drive units having drive components that are laterally displaceable between a closed condition in which the drive components drivingly engage said tubing and an open condition in which the lateral spacing between the drive components is increased to permit the passage of a coupling of the tubing. A pipe injector assembly is also disclosed, comprising: a pipe injector that includes at least two tubing drive units radially arranged around a feed axis along which tubing is fed, the tubing drive units having drive components that are displaceable between a closed condition in which the drive components drivingly engage said tubing and an open condition in which the spacing between the drive components is increased to permit the passage of a coupling of the tubing; and a set of tubing slips that are laterally displaceable between a closed condition in which the tubing slips grip the tubing and an open condition in which the lateral spacing between the tubing slips is increased to permit the passage of the coupling; in which the pipe injector is displaceable longitudinally relative to the set of tubing slips.
Folwark Kevin
Hug Robert L.
Lambert Anthony R.
Snubbertech International Inc.
LandOfFree
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