Methods for monitoring reservoir-bearing formations, installations and devices for their implementation
CA 2135446 C · Owner: Pilla, Jacques · Inventors: Pilla, Jacques; Babour, Kamal; Belani, Ashok Kumar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of monitoring subsurface formations containing at least one fluid reservoir and traversed by at least one well by means of at least one sensor responsive to a parameter related to fluids comprising the steps of: - lowering the sensor into the well to a depth level corresponding to the reservoir; - fixedly positioning said sensor at said depth while isolating the section of the well where the sensor is located from the rest of the well and providing fluid communication between the sensor and the reservoir.
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 November 9, 1994 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 9, 2016.
- 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.