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US 2015/0306522 A1Published application
Inline gas liquid separation system with a shared reject vessel
AssigneeFMC Kongsberg Subsea AS
InventorsHenrik Johan Tuvnes, René Mikkelsen, Haakon Ellingsen
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Abstract
The present invention concerns a gas-liquid separation system and a method for operating a gas-liquid separation the system.
Claims14
A gas-liquid separation system comprising:
- a splitter which is configured to separate a well stream into liquid and gaseous phases;
- the splitter having an outlet for the liquid phase which is connected through a liquid continuous line to an inline degasser that is configured to drive separation of gas and liquid by centripetal acceleration, wherein clean liquid exits the degasser through a liquid outlet pipeline and gas with some liquid is extracted from the degasser into a reject line and flows into a reject vessel;
- and
- the splitter having an outlet for the gaseous phase which is connected through a gas continuous line to an inline deliquidizer that is configured to drive separation of liquid and gas by centripetal acceleration, wherein clean gas exits the deliquidizer through a gas outlet pipeline and liquid with some gas is extracted from the deliquidizer into a reject line and flows into the reject vessel.
1 more element
(canceled)
(canceled)
A method of operating a gas-liquid separation system, comprising:
- transferring an inlet well stream to a splitter;
- separating the well stream into a liquid phase and a gaseous phase in the splitter;
- transferring a liquid continuous stream from the sputter into a degasser, wherein the liquid continuous stream is set into spin and centripetal acceleration drives separation of gas and liquid, and wherein clean liquid exits the degasser through a liquid outlet and gas and some liquid are extracted from the degasser into a first reject line and flow into a reject vessel;
- transferring a gas continuous stream from the splitter into a deliquidizer, wherein the gas continuous stream is set into spin and centripetal acceleration drives separation of liquid and gas, and wherein clean gas exits the deliquidizer through a gas outlet and liquid and some gas are extracted from the deliquidizer into a second reject line and flow into the reject vessel;
- wherein mixed liquid and gas from the first and second reject lines are separated by gravity in the shared reject vessel;
- and
- wherein degassed liquid from the reject vessel is combined with the liquid outlet and dry gas from the reject vessel is combined with the gas outlet.
4 more elements
Dependencies are inferred from the claim text.