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Expired Canadian patentCanada

System and method for producing a conductivity log unaffected by shoulder effect and dip from data developed by a well tool

CA 2316596 C · Owner: Minerbo, Gerald N. · Inventors: Minerbo, Gerald N.

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Abstract From the Canadian patent

A system and method for producing a conductivity log unaffected by shoulder , effect and dip from voltage data developed by a well tool (205) disposed in a borehole. The method involves, accessing the voltage data developed by the tool processing the data, reconstructing two-coil voltage data, and computing differences of the two-coil data to derive a , conductivity profile, representative of the formation. A system including a well tool adapted to move through a, borehole with an apparatus (210) coupled to the tool. The apparatus adapted with means to, access voltage data developed by the receivers disposed on the well tool. The apparatus further, adapted with means for boosting the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed August 22, 2000 and granted July 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 22, 2000
GrantedJuly 2, 2002
Term endedAugust 22, 2020
Patent numberCA 2316596 C
Classification (IPC)G01V3/18 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedAug 22, 2000Patent grantedJuly 2, 2002Term endedAug 22, 2020

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.