Reducing viscosity of oil for production from a hydrocarbon containing formation
CA 2563585 C · Owner: Shell Internationale Research Maatschappij B.V. · Inventors: Vinegar, Harold J.; Pastor-Sanz, Guillermo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a method comprising: applying electrical current to one or more electrical conductors located in an opening in the formation to provide an electrically resistive heat output; allowing the heat to transfer from the electrical conductors to a part of the formation containing hydrocarbons so that a viscosity of fluids in the part at or near the opening in the formation is reduced; providing a gas at one or more locations in the opening to reduce the density of the fluids so that the fluids are lifted in the opening towards the surface of the formation by the formation pressure; and producing the fluids through the opening.
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
- Filed April 22, 2005 and granted June 18, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.