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Downhole drilling apparatus and method for using same

  • US 6,761,230 B2
  • Filed: 10/10/2002
  • Issued: 07/13/2004
  • Est. Priority Date: 09/06/2002
  • Status: Active Grant
First Claim
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1. A downhole drilling tool for drilling a wellbore into an earth formation, the drilling tool having a drill string with a drill bit at an end thereof, the downhole drilling tool comprising:

  • a drill collar connectable to the drill string;

    a housing positionable within the drill collar;

    a gyroscope sealably positionable within the housing; and

    at least one centralizer positionable between the housing and the drill collar whereby the housing is supported in the drill collar.

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