Method of shear wave velocity estimation
CA 2002491 A1 · Owner: Thomsen, Leon A. · Inventors: Hanson, Kenneth E.; Thomsen, Leon A.; Taylor, Thompson J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for obtaining an estimate of the shear velocity in a formation material. Utilizing compressional velocity (Vp) and density (p) of the formation material, formation aggregate mineral parameters and formation pore fluid parameters together with a relationship that the frame bulk modulus/frame shear modulus is approximately equal to the bulk modulus of the aggregate mineral grains/shear modulus of the aggregate mineral grains, to obtain an estimate of the shear wave velocity (Vs) of the formation material. The present invention is primarily designed for use in the areas where shear wave velocity (Vs) measurements are unobtainable due to unconsolidated formations, and …
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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 November 8, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 8, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 8, 2011.
- 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
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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.