system for producing oil and heavier gas fraction from a seabed reservoir, method for producing oil and heavier gas fractions from a seabed reservoir, and, vessel

摘要

HEAVY GAS OIL PRODUCTION AND FRACTION SYSTEM UNDER SEA SEA, HEAVY OIL GAS FRACTION AND OIL GAS FRACTION METHOD, AND, VESSEL. Oil production system heavier gas fractions of a seabed reservoir comprising: a field installation with at least one production well and one injection well, whose wells are connected with risers to a loading station and unloading, a vessel having means for being connected to the loading and unloading station, a receiving plant with means for loading and unloading the vessel. The system is differentiated by the fact that the vessel includes a three-stage high pressure separator, an injection compressor and water cleaning equipment or water injection equipment, and the receiving plant comprises high pressure loading and unloading means of so that the vessel, when connected to the field installation, stator blades carry high pressure well fluid carried to the separator and separated into lighter gas fractions, heavier oil and gas fractions, and water, of which petroleum and heavier gas fractions are taken to the vessel's high-pressure storage tanks, whose high-pressure storage tanks contain high-pressure gas, which is then displaced from the tanks and injected into the reservoir along with the fractions of gas. lighter gases via the injection compressor, after which oil and heavier fractions and gas after transport to the receiving plant No, they may be discharged by displacing the contents of the tank with the high pressure gas dispensed from the receiving plant. The vessel and a method are also described.