Seal for a drill string

Details for Australian Patent Application No. 2008244727 (hide)

Owner Siem WIS AS

Inventors Edvardsen, Per Espen; Askeland, Tom Kjetil

Agent Madderns

Pub. Number AU-A-2008244727

PCT Pub. Number WO2008/133523

Priority 20072220 27.04.07 NO

Filing date 4 April 2008

Wipo publication date 6 November 2008

International Classifications

E21B 33/08 (2006.01) Sealing or packing boreholes or wells

E21B 7/12 (2006.01) Special methods or apparatus for drilling - Underwater drilling

F16J 15/32 (2006.01) Sealings - with elastic sealing lip

Event Publications

12 November 2009 PCT application entered the National Phase

  PCT publication WO2008/133523 Priority application(s): WO2008/133523

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