Method for determining petrophysical properties of a subterranean layer
CA 2118896 C · Owner: Neff, Dennis Byrd · Inventors: Neff, Dennis Byrd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is provided for determining petrophysical properties associated with various lateral locations of a subterranean layer. The method employs velocity and density log data corresponding to a, preselected reference lateral location in combination with seismic data, to determine a range of values of at least one petrophysical property associated with a desired lateral location ("nonreference") offset from the reference lateral location.
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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 March 11, 1994 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2016.
- 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.