Methods and mechanism to set a hollow device into and to retrieve said hollow device from a flow pipe

Details for Australian Patent Application No. 2001261938 (hide)

Owner Petroleo Brasileiro S.A. Petrobras

Inventors De Almeida, Alcino Resende

Agent Griffith Hack

Pub. Number AU-B-2001261938

PCT Pub. Number WO2002/061237

Priority 0102331.6 30.01.01 GB

Filing date 29 May 2001

Wipo publication date 12 August 2002

Acceptance publication date 2 November 2006

International Classifications

E21B 23/08 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 23/00 (2006.01) Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

E21B 34/00 (2006.01) Valve arrangements for boreholes or wells

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

F16L 55/38 (2006.01) Devices or appurtenances for use in, or in connection with, pipes or pipe systems

Event Publications

20 February 2003 Application Open to Public Inspection

  Published as AU-B-2001261938

2 November 2006 Application Accepted

  Published as AU-B-2001261938

1 March 2007 Standard Patent Sealed

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