Sub sea processing system

摘要

A sub-sea processing system for the production of oil and/or gas from one or more production wells (1), especially wells producing heavy oil in deep water and with high viscosity. The system includes, beyond the production wells (1), one or more injection wells (2) for the injection of produced water, a separator (3), a production pump (4), a water injection and circulation pump (5) and a heating arrangement (6). A water circulation and injection pipe loop (7) is provided to interconnect the separator (3), the injection and circulation pump (5), the heating arrangement (6), the flow control device (11), and the wells (1, 2) enabling circulation of heated water to the wells (1, 2) via the separator (3) and heating arrangement (6).

主权项

1. A sub-sea processing system for the production of oil and/or gas from one or more wells, the system comprising:
at least one production well for the production of oil and/or gas; at least one injection or disposal well for the injection of produced water or produced water deposit(s); a separator with an inlet and a plurality of outlets for water, oil and/or gas; a water injection and circulation pump; and a flow control device, wherein a water circulation and injection pipe loop interconnects the separator, the injection and circulation pump, the flow control device, the at least one production well and the at least one injection or disposal well, and said loop circulates hot water to control the temperature of the fluid flow in said loop, thereby controlling the viscosity and the water cut in the fluid flow entering the separator prior to start up and during production of any of the wells.