SYSTEM AND METHOD FOR PRODUCTION OF HYDROCARBONS IN OFFSHORE SALT CAVERNS

摘要

Method and system for subsea production of hydrocarbons from a wellbore (16), comprising the steps of; - separating a first wellbore fluid (A) from the wellbore (16) in a first separator (101, 201), to obtain a second wellbore fluid (B) comprising mainly hydrocarbons, - transporting the second wellbore fluid (B) in a flow to an offshore salt cavern (3) via a first fluid line (102, 202, 302), - separating the second wellbore fluid (B) in the salt cavern (3) into at least oil (22) and water (21), by allowing the second wellbore fluid (B) to rest in the salt cavern (3), and - transporting the oil (22) via a second fluid line (103) to an oil processing or storage facility.