Apparatus for gripping a tubular on a drilling rig

A method and apparatus for handling tubular on a drilling rig. The apparatus is adapted for gripping a tubular and may be used with a top drive. The apparatus includes a connection at one end for rotationally fixing the apparatus to the top drive and gripping members at a second end for gripping the...

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Bibliographische Detailangaben
Hauptverfasser: PIETRAS, BERND-GEORG, GIROUX, RICHARD LEE, HEIDECKE, KARSTEN, LORENZ, JOERG, HAYES, MICHAEL, BOUTWELL JR., DOYLE FREDERIC, ODELL II, ALBERT C, LE, TUONG THANH, THOMPSON, GARY
Format: Patent
Sprache:eng
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