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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US415056828 Mar 197824 Apr 1979General Electric CompanyApparatus and method for down hole vibration spectrum analysis
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US680802711 Jun 200126 Oct 2004RST (BVI), Inc.Wellbore directional steering tool
US684312019 Jun 200218 Jan 2005BJ Services CompanyApparatus and method of monitoring and signaling for downhole tools
US688664420 Aug 20023 May 2005Vermeer Manufacturing CompanyApparatus and method for horizontal drilling
US71821513 May 200527 Feb 2007Vermeer Manufacturing CompanyApparatus and method for horizontal drilling
US735719717 Oct 200115 Apr 2008Halliburton Energy Services, Inc.Method and apparatus for monitoring the condition of a downhole drill bit, and communicating the condition to the surface
US76857323 Aug 200530 Mar 2010Halliburton Energy Services, Inc.Orientation sensing apparatus and a method for determining an orientation