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...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OLSTAD DELANEY MICHAEL, HEIDECKE KARSTEN, RIALS JOSEPH ROSS, FISHER RALEIGH
Format: Patent
Sprache:eng
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Beschreibung
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 to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill.