Nmr instrument and technique utilizing ultrashortened depolarization cycle
CA 1210448 A · Owner: Chevron Research And Technology Company · Inventors: Brown, Robert J.S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with the present invention fluid-, flow properties of a rock sample based on NMR response of the hydrogen nuclei of interstitial fluids within the pore space of such sample, can be swiftly and accurately achieved using a computer-controlled, portable NMR instrument. Inherent instrument inadequacy of a DC field inhomogeneity is controllably augmented by a depolarizing code (provided via a computer-controller controlling a transmitter-pulser) to ensure complete magnetic memory erasing prior to a new measuring cycle. Result: Even though the instrument is placed at field sites away from the usual processing center quick analysis of rock samples as during the drilling of a well, …
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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
- Granted August 26, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 26, 2003.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.