Downhole measurement system and method
CA 2634472 C · Owner: Schlumberger Canada Limited · Inventors: Cho, Brian W.; Brockman, Mark W.; Rioufol, Emmanuel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
One aspect of the present invention is a system and method to measure a pressure or other, measurement at a source (e.g. a hydraulic power supply) and in or near a downhole tool and, compare the measurements to verify that for example, the supply is reaching , the tool. Another aspect of the present invention is a system and method in which a gauge is positioned within a, packer. Yet another aspect of the invention relates to a gauge that communicates with the setting, chamber of a packer as well as related methods. Other aspects and features of the system and, method are also described. It is emphasized that this abstract is provided to comply with the, rules requiring an abstract …
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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 July 19, 2005 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 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.