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Expired Canadian patentCanada

Method and apparatus for imaging permeability pathways of geologic fluid reservoirs using seismic emission tomography

CA 2620819 C · Owner: Geiser, Peter Anderson · Inventors: Geiser, Peter Anderson

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Abstract From the Canadian patent

The application of SET for the imaging and analysis of seismic energy emission induced during production of fluid resources from their reservoirs allows 4 dimensional measurements of the components of the permeability field of the reservoir. The seismic energy emission associated with the permeability field is identified by its spatial and temporal location with respect to a well or plurality of wells in which fluid pressure is being changed. Changing fluid pressure causes seismicity to rapidly migrate outward from the points of fluid pressure change and will alter the characteristics of the seismic energy emission. Monitoring the changes in seismic energy emission in response to …

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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 26, 2005 and granted August 12, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 26, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 26, 2005
GrantedAugust 12, 2014
Term endedAugust 26, 2025
Patent numberCA 2620819 C
Classification (IPC)G01V1/28 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 26, 2005Patent grantedAug 12, 2014Term endedAug 26, 2025

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