Methods and apparatus for drilling directional wells by percussion method

Details for Australian Patent Application No. 2009212252 (hide)

Owner Javins Corporation

Inventors Javins, Brooks Howard; Bui, Huy D.

Agent Spruson & Ferguson

Pub. Number AU-B-2009212252

PCT Pub. Number WO2009/100378

Priority 12/028,403 08.02.08 US

Filing date 6 February 2009

Wipo publication date 13 August 2009

Acceptance publication date 9 February 2012

International Classifications

E21B 4/00 (2006.01) Drives for drilling, used in the borehole

E21B 4/06 (2006.01) Drives for drilling, used in the borehole

E21B 4/14 (2006.01) Drives for drilling, used in the borehole

Event Publications

2 September 2010 PCT application entered the National Phase

  PCT publication WO2009/100378 Priority application(s): WO2009/100378

9 February 2012 Application Accepted

  Published as AU-B-2009212252

7 June 2012 Standard Patent Sealed

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