US 11,988,075 B2
Offshore assembly and oil and gas production system and method comprising such offshore assembly
Giulio Fatica, Milan (IT); Stephane Rigaud, Milan (IT); Thierry Delahaye, Milan (IT); Benjamin Mauries, Milan (IT); and Giorgio Arcangeletti, Milan (IT)
Assigned to SAIPEM S.P.A., Milan (IT)
Appl. No. 17/928,517
Filed by SAIPEM S.P.A., Milan (IT)
PCT Filed Jul. 1, 2021, PCT No. PCT/IB2021/055917
§ 371(c)(1), (2) Date Nov. 29, 2022,
PCT Pub. No. WO2022/003621, PCT Pub. Date Jan. 6, 2022.
Claims priority of application No. 102020000015913 (IT), filed on Jul. 1, 2020.
Prior Publication US 2023/0203920 A1, Jun. 29, 2023
Int. Cl. E21B 43/017 (2006.01); E21B 41/00 (2006.01); F03D 13/25 (2016.01)
CPC E21B 43/017 (2013.01) [E21B 41/0085 (2013.01); F03D 13/25 (2016.05); F05B 2240/95 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An offshore assembly to supply electricity and chemicals through at least one umbilical to an underwater oil and gas production facility, the offshore assembly comprising:
a wind turbine configured to generate electricity, the wind turbine equipped with a tower, a nacelle and a blade assembly;
a semi-submersible support structure arrangeable in the body of water, the support structure comprising a tubular portion, wherein a plurality of compartments are vertically arranged within the tubular portion, each of the compartments is configured to house equipment to perform a function, at least one of the compartments houses at least one tank configured to contain chemicals, and a cooling and ventilation system is configured to cool and ventilate the plurality of compartments; and
a back-up power source mounted on the support structure and configured to generate electricity, wherein at least one of the compartments houses static electrical power equipment operable to make available the electricity generated by at least one of the wind turbine and the back-up power source.