Tractor communication/control and select fire perforating switch

Details for Australian Patent Application No. 2008216874 (hide)

Owner Welltec A/S

Inventors Larsen, Kasper Juul; Lerche, Nolan C.; Brooks, James E.; Thomsen, Brian; Larsen, Jesper Oluf

Agent Halfords IP

Pub. Number AU-A-2008216874

PCT Pub. Number WO2008/100362

Priority 60/879,169 06.01.07 US

Filing date 7 January 2008

Wipo publication date 21 August 2008

International Classifications

E21B 47/12 (2006.01) Survey of boreholes or wells - Means for transmitting measuring-signals from the well to the surface, e.g. for logging while drilling

E21B 43/116 (2006.01) Obtaining fluids from wells

E21B 43/1185 (2006.01) Obtaining fluids from wells

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

Event Publications

27 August 2009 PCT application entered the National Phase

  PCT publication WO2008/100362 Priority application(s): WO2008/100362

3 November 2011 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(a). A direction to request examination has been given for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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