Abstract: A subsea petroleum production system for artificial lift, including a pumping module coupled to a flow base, the system being installed downstream of a Wet Christmas Tree (WCT) on the seabed. The pumping module includes at least one submersible centrifugal pump (SCP) inclined with respect to the vertical direction at an inclination of up to 85 degrees from the vertical direction, wherein a flow in said at least one pump is ascending.

Abstract: A system for the direct vertical connection between contiguous sub sea equipment is described, having one or more hydrocarbon flow and/or control interconnection between same, so as to dispense with the use of connecting jumpers. One mode of said system comprises a PuAB 221 vertically and directly connected to a PrAB 104. Equipment is directly fixed through the PuAB connector 251 with a PrAB 104-production mandrel 107, said mandrel being fitted with a funnel guide 112. PuAB 221 is fitted with a funnel 224 so as to guide the drilling of a cased borehole 220 in the marine soil 101, close to well 111. Once the cased borehole 220 is ready, PuAB 221 will be locked to the casing of said borehole 220 by means of a locking system, so as to complete the mechanical and hydraulic connection between the two devices, PuAB and PrAB or HWCT. Two modes of the method for installation of said system are also described.

Abstract: The invention relates to a system for collecting and injecting water from a subterranean aquifer directly into hydrocarbon reservoirs. The system may include a collecting wells in aquifers, injection wells in hydrocarbon producing reservoirs and a hydraulic connection for pumping water with access to a collecting zone and to an injection zone. The invention is applicable to hydrocarbons production fields, where water injection is used to maintain the pressure in a hydrocarbon producing reservoir, thereby enhancing the recovery rate of the same.

Abstract: The present invention contemplates a system comprising a pumping module coupled to an intermediate flow inlet (IFI) wherein said IFI is coupled to a base structure disposed on the flow line that routes production from one or more oil wells, allowing for the quick and easy installation or recovery of a subsea pumping module by cable from an inexpensive vessel. The present invention also allows for the hydraulic isolation of the subsea pumping module by means of on-off valves on the IFI whereby the pumping module can be easily installed or removed without causing underwater oil spills. Sealing of the connection is of the metal-metal type. It is also possible to pass a pig through the present system for clearing the flow lines.

Abstract: The instant invention relates to a system for collecting and injecting water from a subterranean aquifer into hydrocarbon reservoirs, more specifically, the invention is directed to a system of water collection wells in aquifers and injector wells in oil reservoirs (petroleum) and one or more pumps. The invention finds application in production systems for hydrocarbons, where it is utilized for injecting water to maintain the pressure in a hydrocarbon reservoir (oil and gas), thereby enhancing oil recovery.