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Support apparatus for a well bore tool

  • US 7,921,918 B2
  • Filed: 06/26/2008
  • Issued: 04/12/2011
  • Est. Priority Date: 06/26/2008
  • Status: Expired due to Fees
First Claim
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1. An apparatus for supporting downhole operations, from a deck of a rigless structure comprising:

  • a base having an opening for allowing access to a well bore in a subterranean formation;

    a pair of spaced-apart vertical legs secured to and extending upwardly from the base, each of said legs comprising a movable portion adapted for vertical movement in relation to the base, top parts of each of said movable portions supporting an alignment assembly;

    a swivel unit mounted between alignment assemblies above said opening, said swivel unit being configured for connecting to a rotating tool for delivery of rotating force to a downhole tool, wherein each alignment assembly comprises an elongated arm carrying alignment members having a plurality of radially-extending spokes on a proximate end thereof and carrying a handle on a distal end thereof, and a tightening member secured between the handle and the proximate end to facilitate movement of the alignment members into contact with the swivel unit upon demand for supporting the swivel unit in a substantial alignment over said opening and absorbing vibration from said swivel unit; and

    a power source for providing power to said swivel unit and said movable portions of the legs.

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