TOP DRIVE SYSTEM
In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally cou...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled o the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill. |
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