Fluid separation and reinjection systems for oil wells
CA 2271168 A1 · Owner: Shaw, Christopher K. · Inventors: Shaw, Christopher K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The fluid separation and reinjection system for use in a wellbore extending through a producing zone (22, 190) producing an oil/water mixture and a water reinjection zone comprises a tubing (28 102, 150, 194) disposed within the , wellbore in fluid communication with the producing zone defining an oil flow channel and in fluid communication with the water reinjection zone defining a water reinjection channel. The system further comprises a separator (60) separating the produced oil/water mixture into an oil rich phase and a water rich phase located at least partially above the wellbore and adjacent the wellbore, the separator having an inlet coupled to the oil flow channel and a …
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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 7, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 2019.
- 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.