	US 12,103,649 B2
	Method for fabrication of an integrated production complex on a gravity-based structure (GBS)
Leonid Viktorovich Mikhelson, Moscow (RU); Valeriy Nikolaevich Retivov, Moscow (RU); and Sergey Gennadyevich Solovyev, Novyy Urengoy (RU)
Assigned to Publichnoe Aktsionernoe Obshchestvo “NOVATEK”, Tarko-Sale (RU)
Appl. No. 18/580,772
Filed by Publichnoe Aktsionernoe Obshchestvo “NOVATEK”, Tarko-Sale (RU)
PCT Filed Jul. 14, 2022, PCT No. PCT/RU2022/000226 § 371(c)(1), (2) Date Jan. 19, 2024, PCT Pub. No. WO2023/009032, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. RU2021122903 (RU), filed on Jul. 30, 2021.
Prior Publication US 2024/0262470 A1, Aug. 8, 2024
Int. Cl. B63B 73/10 (2020.01); B23P 21/00 (2006.01); B63B 73/30 (2020.01); E02B 17/00 (2006.01); E02B 17/02 (2006.01)

CPC B63B 73/10 (2020.01) [B63B 73/30 (2020.01); B23P 21/004 (2013.01); E02B 2017/0069 (2013.01); E02B 17/025 (2013.01)]

17 Claims

1. A method for fabrication of a production complex, in which topside modules are fabricated at a production site, including stages of fabrication, abrasive cleaning and painting of sub-assemblies and assembly of modules, the modules are transported to a location of a foundation and are moved to respective seats on the foundation which is located in a dry dock, and then the modules are integrated with the foundation and with one another, wherein a gravity-based structure (GBS) is used as the foundation, said GBS being able to stay afloat during transportation to a GBS installation site, wherein fabrication of the modules includes the following stages:

Stage I, at which components are fabricated,

Stage II, at which nodes are fabricated from the components,

Stage III, at which sub-assemblies are fabricated from the nodes,

Stage IV, at which abrasive cleaning and painting of the sub-assemblies is carried out, and

Stage V, at which assembly of the modules from the sub-assemblies is carried out,

then transportation of the modules, movement to their seats on the GBS and their integration include the following stages:

Stage VI, at which the modules are transported to an area adjacent the dry dock with the help of self-propelled vehicles,

Stage VII, at which each module is moved onto guides of a lifting system installed in the dry dock,

Stage VIII, at which each module is lifted until the lifting system guides are connected with guides on a top slab of the GBS, and

Stage IX, at which each module is moved to its seat on the GBS, installed on the GBS, and the modules are integrated with one another and with the GBS.