Erosion resistant aperture for a downhole valve or ported flow control tool

Details for Australian Patent Application No. 2005252641 (hide)

Owner Baker Hughes Incorporated

Inventors Russell, Ronnie D.

Agent Freehills

Pub. Number AU-B-2005252641

PCT Pub. Number WO2005/121502

Priority 60/576,355 02.06.04 US

Filing date 25 May 2005

Wipo publication date 22 December 2005

Acceptance publication date 14 October 2010

International Classifications

E21B 21/10 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

E21B 17/00 (2006.01) Drilling rods or pipes

E21B 34/06 (2006.01) Valve arrangements for boreholes or wells

E21B 34/14 (2006.01) Valve arrangements for boreholes or wells

E21B 41/00 (2006.01) Equipment or details not covered by groups

Event Publications

4 January 2007 PCT application entered the National Phase

  PCT publication WO2005/121502 Priority application(s): WO2005/121502

11 January 2007 Amendment Made

  The nature of the amendment is: Amend the invention title to read Erosion resistant aperture for a downhole valve or ported flow control tool

14 October 2010 Application Accepted

  Published as AU-B-2005252641

10 February 2011 Standard Patent Sealed

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