Method and aparatus for true relative amplitude correction of seismic data for normal moveout stretch effects
CA 2597598 C · Owner: Alford, Richard B. · Inventors: Martin, Harry L.; Herkenhoff, E. Frederic; Alford, Richard B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method and apparatus for arriving at true relative amplitude destretched seismic traces from stretched seismic traces. The method compensates for offset varying reflection interference effects due to normal moveout. Stretch factors .beta. and also input spectra are determined for NMOR stretched seismic traces. Estimates are then made of stretched wavelet spectra from the input spectra. A destretched wavelet spectra is then obtained. Shaping correction factors are determined by taking the ratio of the destretched wavelet spectra to the stretched wavelet spectra and are applied to the input spectra of the stretched traces to arrive at a destretched …
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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 February 9, 2006 and granted November 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.