Novel activating mechanism for controlling the operation of a downhole tool

Details for Australian Patent Application No. 2006257625 (hide)

Owner Schoeller-Bleckmann Oilfield Equipment AG

Inventors Lee, Paul Bernard

Agent Halfords IP

Pub. Number AU-B-2006257625

PCT Pub. Number WO2006/134446

Priority 0512125.6 15.06.05 GB; 0512391.4 20.06.05 GB; 0513140.4 29.06.05 GB

Filing date 9 June 2006

Wipo publication date 21 December 2006

Acceptance publication date 8 December 2011

International Classifications

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

E21B 21/00 (2006.01) Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

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

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

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

F03B 13/02 (2006.01) Adaptations of machines or engines for special use

Event Publications

3 January 2008 PCT application entered the National Phase

  PCT publication WO2006/134446 Priority application(s): WO2006/134446

27 October 2011 Assignment before Grant

  Lee, Paul The application has been assigned to Schoeller-Bleckmann Oilfield Equipment AG

8 December 2011 Application Accepted

  Published as AU-B-2006257625

5 April 2012 Standard Patent Sealed

23 August 2012 Application for Amendment

  The nature of the amendment is as shown in the statement(s) filed 10 Jul 2012 . Address for service in Australia - Halfords IP 1 Market Street Sydney NSW 2000

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