Controlling the flow of a multiphase fluid from a well
CA 2591309 C · Owner: Eken, Adriaan Nicolaas · Inventors: Eken, Adriaan Nicolaas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for controlling the flow of a multiphase fluid from a well extending into a subsurface formation, which well is provided at a downstream position with a valve having a variable aperture which method comprises allowing the , multiphase fluid to flow at a selected aperture of the valve; selecting a flow parameter of the multiphase fluid, which flow parameter is responsive to changes in a gas/liquid ratio of the multiphase fluid at an upstream position in the well, and a setpoint for the flow parameter; and monitoring the flow parameter; controlling the flow parameter towards its setpoint by manipulating the aperture of the valve; wherein the control time between detection of a …
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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
- Filed December 20, 2005 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 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.