Clamped receiver array using coiled tubing conveyed packer elements
CA 2322844 C · Owner: Seismic Reservoir 2020 Ltd. · Inventors: Paulsson, Bjorn N. P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A clamped receiver array using coiled tubing conveyed packer elements is disclosed, and described. The receiver array is adapted to be received within a borehole and is therefore, particularly useful for borehole seismology. The receiver array has a plurality of receivers, connected together by a signal cable. The receivers include sensors which can be 3-component, geophones. The apparatus is further provided with a fluid conduit running essentially parallel to, the signal cable the fluid conduit having expansible sections located adjacent to the receivers. The expansible sections expand in response to an increase of fluid pressure within the fluid, conduit, contacting the associated …
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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 March 8, 1999 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 8, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 8, 2021.
- 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.