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Expired Canadian patentCanada

Bubble breaker assembly

CA 2544835 C · Owner: Schrama, Erik Arie · Inventors: Fernandes, Richard Lawrence Joseph; Schrama, Erik Arie

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method and system are disclosed for dispersing gas bubbles in a multiphase mixture in a production tubing (4) in an crude oil production well (1) or in a riser connected to such a well, by means of one or more bubble breaker assemblies (16) in which a plurality of orifices (18) are arranged that are located in a substantially eccentric position relative to a central axis of the tubing (4). The use of eccentric orifices (18) promotes the breaking up of large gas bubbles (15) into a large amount of smaller gas bubbles (25) which , are finely dispersed in the fluid stream and only re-coalesce slowly into larger bubbles.

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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 November 5, 2004 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 5, 2024.
  • 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.
FiledNovember 5, 2004
GrantedDecember 4, 2012
Term endedNovember 5, 2024
Patent numberCA 2544835 C
Classification (IPC)E21B43/12 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 5, 2004Patent grantedDec 4, 2012Term endedNov 5, 2024

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.