Use of surfactants to improve oil recovery during steamflooding
CA 1184022 A · Owner: Prowse, Daniel R. · Inventors: Prowse, Daniel R.; Isaacs, Ezra Eddy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
USE OF SURFACTANTS TO IMPROVE OIL RECOVERY DURING STEAMFLOODING", ABSTRACT OF THE DISCLOSURE An improvement is provided in an in situ steamflooding process for recovering oil from a subterranean heavy oil-containing, reservoir. An organic sulfonate surfactant for example a petroleum, sulfonate surfactant is injected with the steam into the reservoir. The steam-surfactant injection stream is introduced to the reservoir at a temperature in the range of about 180°C to 260°C. The process may be practised in a single well or multi-well pattern using any of a continuous steam drive, steam soak or cyclic steam recovery program. A substantial increase in oil recovery is achieved by this process, as …
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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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.