Petroleo Brasileiro S.a. - Petrobras

João Siqueira De Matos

Roberto Rodrigues

Robson Soares Junior

Carlos Alberto Giacomim Pereira

Jackson Burjack Farias

Mauro Luiz Lopes Euphemio

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.

Subsea petroleum production system method of installation and use of the same

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 PuABvertically and directly connected to a PrAB. Equipment is directly fixed through the PuAB connectorwith a PrAB-production mandrel, said mandrel being fitted with a funnel guide. PuABis fitted with a funnelso as to guide the drilling of a cased boreholein the marine soil, close to well. Once the cased boreholeis ready, PuABwill be locked to the casing of said boreholeby 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.

System for direct vertical connection between contiguous subsea equipment and method of installation of said connection

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.

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Rio de Janeiro, Brazil

João Siqueira De Matos