Recovering bitumen from subterranean formations
CA 1061713 A · Owner: Texaco Canada Inc. · Inventors: Redford, David A.; Cram, Phillip J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
RECOVERING BITUMEN FROM, SUBTERRANEAN FORMATIONS (D#73,500-RCA-29-F), ABSTRACT, A process for enhanced recovery of bitumen from subterranean formations is disclosed wherein steam, is injected into a formation via an injection well and, a mixture of bitumen and steam condensate is produced via a production well, wherein the produced mixture is flashed for production of a steam distilled hydrocarbon fraction, and wherein the steam distilled hydrocarbon fraction is injected, with additional steam into a, subterranean formation for increased recovery of bitumen. -I-
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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 September 4, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 1996.
- 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.