SYSTEM FOR DETECTING GAS IN A WELLBORE DURING DRILLING

Details for Australian Patent Application No. 2003237954 (hide)

Owner SHELL INTERNATIONAL RESEARCH MAATSCHAPPIJ B.V.

Inventors COENEN, Josef, Guillaume, Christoffel

Pub. Number AU-A-2003237954

PCT Number PCT/EP03/06414

PCT Pub. Number WO2004/003343

Priority 02254596.6 28.06.02 EP

Filing date 17 June 2003

Wipo publication date 19 January 2004

International Classifications

E21B 049/00 Testing the nature of borehole walls

G01N 033/28 Investigating or analysing materials by specific methods not covered by groups

Event Publications

11 September 2003 Complete Application Filed

  Priority application(s): 02254596.6 28.06.02 EP

4 March 2004 Application Open to Public Inspection

  Published as AU-A-2003237954

17 March 2005 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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