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High trip rate drilling rig

  • US 10,550,650 B2
  • Filed: 06/23/2017
  • Issued: 02/04/2020
  • Est. Priority Date: 11/17/2015
  • Status: Active Grant
First Claim
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1. A drilling rig [1] comprising:

  • a top drive assembly [200] vertically translatable along a mast [10] of the drilling rig [1];

    a tubular delivery arm [500] vertically translatable along the mast [10];

    the tubular delivery arm [500] having a tubular clasp [550] that is movable between a well center position [30] over a well center and a second position [50] forward of the well center position;

    a dolly translatably connected to the mast;

    a travelling block assembly;

    a top drive suspended from the travelling block assembly;

    a yoke pivotally connecting the travelling block to the dolly;

    an extendable actuator connected between the dolly and the yoke;

    a torque tube rigidly connected to the travelling block;

    the torque tube connected to the top drive in vertically slidable relation;

    wherein extension of the actuator pivots the first yoke to extend the travelling block and top drive away from the dolly to a position over a well center; and

    wherein retraction of the actuator pivots the first yoke to retract the travelling block towards the dolly to a position away from the well center.

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