Method of preventing fines migration
CA 1312005 C · Owner: Shell Canada Limited · Inventors: Thomas, Mark Blair
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of preventing fines migration while producing oil from a well that penetrates an oil-bearing subterranean formation wherein the oil includes both volatile and residual hydrocarbons. An oil-displacing gaseous fluid is injected into the formation from the well at a pressure in excess of formation pressure and at a temperature and in a quantity sufficient to vaporize volatile hydrocarbons, to displace volatile hydrocarbons from the portion of the formation that immediately surrounds the well bore and to move the displaced volatile hydrocarbons deeper into the formation and to bond a residual hydrocarbon phase to the fines of said unconsolidated formation. EIRH04
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 December 29, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 2009.
- 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.