Method for withdrawal and insertion of a drill pipe string in a borehole and also a device for use when practising the method

Details for Australian Patent Application No. 2010218497 (hide)

Owner West Drilling Products AS

Inventors Krohn, Helge; Grinrod, Mads

Agent Griffith Hack

Pub. Number AU-A-2010218497

PCT Pub. Number WO2010/098672

Priority 20090898 26.02.09 NO

Filing date 19 February 2010

Wipo publication date 2 September 2010

International Classifications

E21B 19/16 (2006.01) Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

E21B 15/00 (2006.01) Other equipment or details for drilling

E21B 19/20 (2006.01) Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick

Event Publications

6 October 2011 PCT application entered the National Phase

  PCT publication WO2010/098672 Priority application(s): WO2010/098672

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