Method and system for accessing a subterranean zone from a limited surface area
CA 2436085 C · Owner: Cdx Gas, L.L.C. · Inventors: Zupanick, Joseph A.; Rial, Monty H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for accessing subterranean resources from a limited surface , area includes a first well bore extending from the surface to the target zone. The first well , bore includes an angled portion disposed between the target zone and the surface to , provide an offset between a surface location of the first well bore and an intersection of , the first well bore with the subterranean resource. The system also includes an articulated , well bore extending from the surface to the target zone. The articulated well bore is , offset from the first well bore at the surface and intersects the first well bore proximate , the target zone. The system further includes a well bore …
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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 January 22, 2002 and granted April 30, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2024.
- 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
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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.