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MOBILE DRILLING RIG

  • US 20160010323A1
  • Filed: 07/14/2015
  • Published: 01/14/2016
  • Est. Priority Date: 07/14/2014
  • Status: Active Grant
First Claim
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1. A drilling rig, comprising:

  • a pair of mean beams supportable by a pair of rails;

    a substructure comprising;

    a plurality of pivoting legs;

    a drill floor comprising a plurality of spreaders pivotably supported by the plurality of pivoting legs; and

    a plurality of drill floor subassemblies supported by the plurality of spreaders;

    an A-frame secured to the main beams; and

    a mast pivotably secured to the main beams and configured to lay down in a pre-erected stage;

    wherein the plurality of pivoting legs supporting the plurality of spreaders are configured to lay down in a pre-erected stage.

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