System and method for estimating multi-phase fluid rates in a subterranean well
CA 2446287 C · Owner: Kendrick, Kerry L. · Inventors: Kendrick, Kerry L.; Shah, Piyush C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods and systems for estimating multi-phase fluid rates in a subterranean well. Stored and measured static and transient well conditions are used to model well conditions for comparison against additional transient data relating to temperature pressure, and flow. Multi-phase fluid rates are estimated by iteratively comparing well conditions with the model for the well. Multi-phase fluid flow estimates maybe obtained for the various liquid and gaseous fluids in the well at multiple well locations.
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 October 23, 2003 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2025.
- 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.