Method of preventing formation of hydrates in flowing hydrocarbons under subsea piping of same and a subsea plant for processing of a well to prevent hydrate formation
CA 2040833 A1 · Owner: Cotton, John L. · Inventors: Cotton, John L.; Stinessen, Kjell O.; Christensen, Jan S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of preventing formation of hydrates in flowing hydrocarbons under subsea piping of same and a subsea plant for processing of a well flow to prevent hydrate formation. Formation of hydrates is to be prevented in subsea pipelining of hydrocarbon flows by establishing the phase diagram for said flows including a hydrate line. The hydrocarbon flow is separated under a pressure at which light hydrocarbons boil off the liquid phase and enters the gas phase to such an extent that hydrates will not be formed or substantially not be formed in the liquid phase, determined by the composition of the flow of hydrocarbons. The gas phase is processed according to known methods so that formation of …
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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 April 19, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.