Method for determining the producibility of a hydrocarbon formation
CA 2029410 A1 · Owner: Kothari, Dipak Chhabildas · Inventors: Kothari, Dipak Chhabildas; Supernaw, Irwin Ray
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A HYDROCARBON FORMATION, (D#78,782-F) ABSTRACT OF THE DISCLOSURE, The invention is a method of evaluating a sample of an underground formation such as drill cuttings to determine the producibility of any hydrocarbons present in the formation by solvating a sample in a polar solvent which will solvate asphaltenes, solvating the sample in an aliphatic solvent which will solvate most crude fractions without solvating asphaltenes quantitatively measuring the emission fluorescence at a wavelength below 400 nm of both solvated samples at an excitation wavelength at which most petroleum compounds fluoresce and, determining the producibility of any hydrocarbon present in the sample by comparing the …
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 6, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2012.
- 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.