Carbon dioxide injection with in situ combustion process for heavy oils
CA 1259564 A · Owner: Texaco Development Corporation · Inventors: Bousaid, Issam S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention process is a method of conducting in situ combustion in heavy oil or tar sand reservoirs wherein carbon dioxide is injected into the formation prior to during, or prior, to and during in situ combustion. The carbon dioxide may be injected concurrently with the injection of the oxygen-containing gas or the oxygen-containing gas and carbon dioxide may be injected in alternate slugs. The injection of carbon dioxide aids in situ combustion by lowering the viscosity of the oil creating, channels in the heavy oil deposits for the passage of the oxygen-containing gas and increasing the mobility of oil ahead of the combustion front. -21-
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 September 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 19, 2006.
- 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.