Bottom hole assembly with coiled tubing insert
CA 2286950 A1 · Owner: Baker Hughes Incorporated · Inventors: Coronado, Martin P.; Mackenzie, Gordon R. J.; Willauer, Darrin L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An Internal Bottom Hole Assembly (IBHA) for a Coiled Tubing (CT) enables the CT to be used with other devices downhole. The IBHA includes a connector a , valve, assembly and an emergency disconnect device all of which are mounted , internally in the CT. The connector couples to the inside of the CT by means of wedges that are urged, against the inside wall of the CT. The valve assembly may be mounted either between, the connector and the disconnect device or may be on the side of the connector away, from the disconnect device. The valve assembly includes one or more flapper valves that, are able to pass a ball through at a minimum flow rate of fluid enabling the , ball to be, used to …
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 October 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 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
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.