Ball piston steering devices and methods of use

Details for Australian Patent Application No. 2009322480 (hide)

Owner SCHLUMBERGER TECHNOLOGY B.V.

Inventors Neves, Fabio; Slocum, Alexander H.

Agent Griffith Hack

Pub. Number AU-A-2009322480

PCT Pub. Number WO2010/065573

Priority 12/328,711 04.12.08 US

Filing date 2 December 2009

Wipo publication date 10 June 2010

International Classifications

E21B 7/06 (2006.01) Special methods or apparatus for drilling

E21B 7/08 (2006.01) Special methods or apparatus for drilling

Event Publications

7 July 2011 PCT application entered the National Phase

  PCT publication WO2010/065573 Priority application(s): WO2010/065573

11 August 2011 Amendment Made

  The nature of the amendment is as shown in the statement(s) filed 10 Jun 2011

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