Method for consolidating formation surrounding borehole
CA 1266429 C · Owner: Home Oil Company Limited · Inventors: Hanna, Mohsen R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is disclosed a process for transforming an unconsolidated formation surrounding a borehole into a consolidated state for the prevention of the migration of small particles during the removal of fluid from the borehole. The formation is heated to a predetermined temperature capable of supporting low temperature oxidation by heating a heavy crude oil above ground surface and then injecting the heated crude oil into the borehole. Precipitation of asphaltenes in the formation is then achieved by injecting unheated air into the borehole and this results, in consolidation of the formation. The heavy crude oil may be heated to a temperature of about 100°C which when, injected into the …
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 March 6, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 6, 2007.
- 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.