US 12,215,552 B2
Polyvalent riser balcony
Helvio Ferreira Da Silva, Campo dos Goytacazes (BR); Marcelo Curzio Salomao, Rio de Janeiro (BR); Osvaldo Roberto Do Vale, Rio de Janeiro (BR); and João Pedro Navarini, Rio de Janeiro (BR)
Assigned to PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
Appl. No. 18/029,498
Filed by PETRÓLEO BRASILEIRO S.A.—PETROBRAS, Rio de Janeiro (BR)
PCT Filed Sep. 21, 2021, PCT No. PCT/BR2021/050401
§ 371(c)(1), (2) Date Mar. 30, 2023,
PCT Pub. No. WO2022/067410, PCT Pub. Date Apr. 7, 2022.
Claims priority of application No. 10 2020 020314-2 (BR), filed on Oct. 2, 2020.
Prior Publication US 2023/0374870 A1, Nov. 23, 2023
Int. Cl. E21B 17/01 (2006.01); B63B 21/00 (2006.01); E21B 19/00 (2006.01)
CPC E21B 19/004 (2013.01) [B63B 21/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A polyvalent riser balcony of a floating production storage and offloading (FPSO) unit comprising:
a lower balcony extending along a length of a side of the FPSO, wherein the lower balcony comprises:
a first plurality of cells, each of the first plurality of cells comprising:
two injector slots;
two producer slots; and
a flexible slot configurable to be an injector slot or a producer slot; and
two exterior injector slots positioned adjacent the plurality of cells,
wherein each of the two injector slots, the two producer slots, and the flexible slot are connected to a riser of a plurality of risers, wherein each of the plurality of risers extends to the seafloor and is coupled to a well, and wherein at least one of the plurality of risers extends in a first direction under the FPSO and at least one of the plurality of risers extends in a second direction other than the first direction and away from the FPSO.