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Drilling rigs and erection methods

  • US 20090218139A1
  • Filed: 02/29/2008
  • Published: 09/03/2009
  • Est. Priority Date: 02/29/2008
  • Status: Active Grant
First Claim
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1. A method for assembling a drilling rig, the method comprisingassembling a substructure of a drilling rig, the assembly comprising connecting an upper box to a lower box, the upper box having an upper open space, the lower box having a lower open space, and the upper open space above the lower open space,moving with a vehicle on ground a floor section connected to and supported by the vehicle into open space including the upper open space and the lower open space, andsecuring the floor section to the substructure.

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