Downhole telemetry system using discrete multi-tone modulation with adaptive noise cancellation

Details for Australian Patent Application No. 2004211768 (hide)

Owner Halliburton Energy Services,Inc.

Inventors Gardner, Wallace R.

Agent Pizzeys

Pub. Number AU-A-2004211768

PCT Pub. Number WO2004/072793

Priority 10/359,930 06.02.03 US

Filing date 6 February 2004

Wipo publication date 26 August 2004

International Classifications

G01V 011/00 Prospecting or detecting by methods combining techniques covered by two or more of main groups

Event Publications

18 August 2005 PCT application entered the National Phase

  PCT publication WO2004/072793 Priority application(s): WO2004/072793

21 June 2007 Application Lapsed, Refused Or Withdrawn, Patent Ceased or Expired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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