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Expired Canadian patentCanada

System and methods of deriving fluid properties of downhole fluids and uncertainty thereof

CA 2532436 C · Owner: Valero, Henri-Pierre · Inventors: O'Keefe, Michael; Valero, Henri-Pierre; Hsu, Kai

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Abstract From the Canadian patent

Methods and systems are provided for downhole analysis of formation fluids by deriving fluid properties and associated uncertainty in the predicted fluid properties based on downhole data and generating answer products of interest based on differences in the fluid properties. Measured data are used to compute levels of contamination in downhole fluids using an oil-base mud contamination monitoring (OCM) algorithm. Fluid properties are predicted for the fluids and uncertainties in predicted fluid properties are derived. A statistical framework is provided for comparing the fluids to generate in real-time, robust answer products relating to the formation fluids and reservoirs thereof. …

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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 January 10, 2006 and granted February 25, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 10, 2026.
  • 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.
FiledJanuary 10, 2006
GrantedFebruary 25, 2014
Term endedJanuary 10, 2026
Patent numberCA 2532436 C
Classification (IPC)G01V9/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 10, 2006Patent grantedFeb 25, 2014Term endedJan 10, 2026

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