METHOD AND SYSTEM FOR OFFSHORE PRODUCTION OF HYDROCARBON FLUIDS

摘要

This application discloses a method of extracting hydrocarbons from a submarine well, which is characterised in that a displacement fluid, e.g. water, is injected under pressure into the submarine well, or into a reservoir connected to the submarine well, from a submerged buoy or from a submerged part of a buoy. Typically, the injection fluid is rawwater. A buoy is also disclosed which comprises an upper section (2) arranged to extend above the sea level; and a lower, submerged section (1), characterised in that the lower, submerged section comprises means for providing a displacement fluid under pressure to an output which is connected or is connectable to a submarine well.