Circumferential displacement sucker rod tong
AssigneeAutomated Rig Technologies Ltd.
InventorsMonte Neil Wright, Donald Nicholas Carmelo, Andrew David Richard, Harold James Miller, David Luis Richard
Life of this patent
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Abstract
A sucker rod tong assembly for fastening together sucker rods to a rod coupling, where the assembly can include a two-stage mechanical drive mechanism. The first stage can connect an upper sucker rod to a lower sucker rod via a rod coupling. The first stage can be limited in mechanical ability to tighten the connection to a pre-set shoulder torque value. The second stage can then be hydraulically and mechanically sequenced, using a linear gear drive mechanism, to rotate a main tong pinion gear that can further rotate the sucker rod connection through a fixed circumferential displacement to a mechanical stop.
Claims7
A sucker rod tong assembly for tightening a sucker rod to a sucker rod connector, the assembly comprising:
- a linear drive mechanism adapted to tighten the sucker rod to the sucker rod connector from a hand-tight shouldered position to a circumferential displacement from the hand-tight shouldered position whereby the sucker rod is tightened to the sucker rod connector, wherein the linear drive mechanism is operatively connected to a rotating pinion gear assembly configured to rotate a sucker rod tong to tighten the sucker rod to the sucker rod connector when the linear drive mechanism is operated.
Dependencies are inferred from the claim text.