Lubrication and self-cleaning system for expansion mandrel

Details for Australian Patent Application No. 2004205168 (hide)

Owner Shell Internationale Research Maatschappij B.V.

Inventors Filippov, Andrei Gregory; Duell, Alan B; Haut, Richard Carl; Ring, Lev; Stewart, R. Bruce; Brisco, David Paul; Cook, Robert Lance

Agent Davies Collison Cave

Pub. Number AU-A-2004205168

Parent 773168

Filing date 20 August 2004

Wipo publication date 16 September 2004

International Classifications

E21B 043/10 Obtaining fluids from wells

E21B 007/20 Special methods or apparatus for drilling - Driving or forcing casings or pipes into boreholes, e.g. sinking

E21B 033/14 Sealing or packing boreholes or wells

Event Publications

9 September 2004 Complete Application Filed

16 September 2004 Application Open to Public Inspection

  Published as AU-A-2004205168

8 January 2009 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(d). Examination has been requested or an examination report has issued for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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