Directional drilling control using modulated bit rotation

Details for Australian Patent Application No. 2008296814 (hide)

Owner Precision Energy Services, Inc.

Inventors Farley, Steven Reid

Agent Fisher Adams Kelly

Pub. Number AU-B-2008296814

PCT Pub. Number WO2009/032367

Priority 11/848,328 31.08.07 US

Filing date 23 May 2008

Wipo publication date 12 March 2009

Acceptance publication date 19 January 2012

International Classifications

E21B 7/04 (2006.01) Special methods or apparatus for drilling - Directional drilling

Event Publications

25 February 2010 PCT application entered the National Phase

  PCT publication WO2009/032367 Priority application(s): WO2009/032367

19 January 2012 Application Accepted

  Published as AU-B-2008296814

17 May 2012 Standard Patent Sealed

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