Apparatus and method for measuring while drilling
CA 2546398 C · Owner: Schlumberger Canada Limited · Inventors: Moriarty, Keith
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus, system, and method for transmitting measurements while drilling are adapted for use with a drill string equipped with a mud motor. The drill string may comprise a plurality of interconnected drill pipe joints or a plurality of interconnect casing joints. The apparatus comprises a measurement-while-drilling tool adapted for placement in the drill string beneath the mud motor. The measurement-while-drilling tool has a system for transmitting telemetry signals such as mud-pulse telemetry signals, upwardly through the mud motor and the drill string. In particular embodiments the measurement-while-drilling tool has a system for transmitting mud-pulse telemetry signals upwardly …
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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 May 12, 2006 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 12, 2026.
- 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.