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Expired Canadian patentCanada

Method for estimating and reconstructing seismic reflection signals

CA 2622961 C · Owner: Burnstad, Roy M. · Inventors: Burnstad, Roy M.

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Abstract From the Canadian patent

A method for reconstructing seismic data signals of poor quality to improve the signal-to-noise ratio of the data for display and analysis in connection with the selection of drilling sites for recovery of hydrocarbons. The method includes providing a signal model by applying a Karhunen-Loeve transform to selected input seismic data collected for the target zone to form a co-, variance matrix from the dot products of all pairs of input data. Eigenvalues and eigenvectors for the matrix are computed and the most significant , eigenvectors are inversely transformed to provide a coherent estimate of the signal. The input data is combined with the model data based on the determination …

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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 September 19, 2006 and granted June 14, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 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.
FiledSeptember 19, 2006
GrantedJune 14, 2016
Term endedSeptember 19, 2026
Patent numberCA 2622961 C
Classification (IPC)G01V1/00

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 19, 2006Patent grantedJune 14, 2016Term endedSep 19, 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.