INTEGRATED SYSTEM FOR SUBSEA HEATING AND PUMPING OF OIL AND INJECTION OF WATER FOR RESERVOIR PRESSURIZATION, AND METHOD FOR HYDRAULICALLY ACTUATED SUBSEA HEATING AND PUMPING AND INJECTION OF WATER

摘要

The present invention relates to artificial lift and production flow assurance systems for subsea oil wells. To this end, the present invention provides an integrated system for subsea heating and pumping of oil that is hydraulically actuated by heated injection water, the system comprising at least one retrievable pumping module (3) connected to a subsea base (2) which in turn receives the fluids produced from at least one subsea production well (1). The subsea base (2) connects to a production unit (8) by means of a riser (6) through which the oil produced flows and an injection line (7) that supplies the pumping module (3) with water which, after driving the turbine (15) and pump (16) assembly, is injected by means of at least one injection well. The present invention further provides a method for hydraulically actuated subsea pumping associated with the above-described system.