LINING AND DRILLING A WELLBORE WITH AN EXPANDABLE BIT

Details for Australian Patent Application No. 2003216821 (hide)

Owner WEATHERFORD/LAMB, INC.

Inventors SIMPSON, Neil, Andrew, Abercrombie; HARRALL, Simon, John

Pub. Number AU-A-2003216821

PCT Number PCT/GB03/01103

PCT Pub. Number WO2003/078790

Priority 0206227.1 16.03.02 GB

Filing date 17 March 2003

Wipo publication date 29 September 2003

International Classifications

E21B 043/10 Obtaining fluids from wells

E21B 010/32 Drilling tools

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

Event Publications

31 July 2003 Complete Application Filed

  Priority application(s): 0206227.1 16.03.02 GB

6 November 2003 Application Open to Public Inspection

  Published as AU-A-2003216821

2 December 2004 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired

  This application lapsed under section 142(2)(f)/See Reg. 8.3(3). Examination has not yet been requested or directed for this application. Note that applications or patents shown as lapsed or ceased may be restored at a later date.

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