Global classification of sonic logs
CA 2464429 C · Owner: Brie, Alain · Inventors: Brie, Alain; Endo, Takeshi; Valero, Henri-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of determining the sonic slowness of a formation traversed by a borehole comprising generating tracks from sonic waveform peaks received at a plurality of depths wherein the peaks that are not classified prior to tracking is set forth. A method for generating a slowness versus depth log is generated for waveform arrivals by classifying long tracks classifying small , tracks; classifying tracks that overlap; filling in gaps; and creating a final log is disclosed. In further improvements non-classified tracks and , interpolation are used to fill in gaps.
Read the whole patent
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 November 4, 2002 and granted August 30, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2024.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.