Drilling tool with feed control

Details for Australian Patent Application No. 2008221113 (hide)

Owner Welltec A/S

Inventors Andersen, Thomas Sune; Hallundbaek, Jorgen

Agent Davies Collison Cave

Pub. Number AU-A-2008221113

PCT Pub. Number WO2008/104178

Priority PA 2007 00303 28.02.07 DK

Filing date 28 February 2008

Wipo publication date 4 September 2008

International Classifications

E21B 4/18 (2006.01) Drives for drilling, used in the borehole

E21B 17/07 (2006.01) Drilling rods or pipes

E21B 34/08 (2006.01) Valve arrangements for boreholes or wells

Event Publications

10 September 2009 PCT application entered the National Phase

  PCT publication WO2008/104178 Priority application(s): WO2008/104178

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