Method of producing heavy oils
CA 1237368 A · Owner: Amoco Corporation · Inventors: Ferguson, Noble B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing viscous oils from reservoirs containing unconsolidated or friable sands comprising drilling the well, stimulating same with steam at a pressure sufficient to fracture the reservoir adjacent the well, shutting in the well, installing a gravel pack producing oil from the well, and periodically subse-, quently stimulating the well by injecting steam at a pressure below that which would result in a fracture of the reservoir.
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
- Granted May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- 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.