Drilling rig system having improved electrical subsystem

CAFC
  • US 9,644,431 B2
  • Filed: 01/09/2015
  • Issued: 05/09/2017
  • Est. Priority Date: 11/26/2014
  • Status: Active Grant
First Claim
Patent Images

1. A drilling rig system comprising:

  • a movable drilling rig unit comprising;

    a mast,rig equipment;

    a rig electrical subsystem configured for electrical communication with the rig equipment, the rig electrical subsystem configured to deliver power to the rig equipment, the rig electrical subsystem comprising a rig electrical subsystem input transformer; and

    a relocation subsystem configured to relocate the movable drilling rig unit between plural discrete drilling locations; and

    an electrical system comprising;

    a primary power supply subsystem remote from the movable drilling rig unit, wherein the primary power supply remains stationary during movement of the movable drilling rig unit between plural discrete drilling locations; and

    an intermediate electrical subsystem configured to carry electrical power from the primary power supply subsystem to the rig electrical subsystem, the intermediate electrical subsystem comprising an intermediate conductor configured to carry 4160 VAC.

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