Drilling formation tester, apparatus and methods of testing and monitoring status of tester
CA 2376544 A1 · Owner: Jerabek, Alois · Inventors: Ringgenberg, Paul D.; Hooper, Michael; Jerabek, Alois
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Integrated drilling and evaluation systems and methods for drilling logging , and testing wells are provided. The drilling and evaluation systems are basically comprised of a drill string (18) a drill bit (30) carried on a , lower end of the drill string (18) for drilling a well bore logging while , drilling apparatus (28) included in the drill string (18) for identifying subsurface zones or formations of interest packer means (32) carried on the , drill string above the drill bit for sealing a zone or formation of interest below the packer means (32), a fluid testing means (26) included in the drill string (18) for controlling the flow of well fluid from the zone or formation of …
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 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 2022.
- 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.