Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
STRUCTURE AND METHOD FOR DECOMMISSIONING AN OFFSHORE PLATFORM
Structure and method for decommissioning offshore platforms presenting topsides (12) mounted on a jacket having a plurality of jacket legs. The offshore decommissioning structure comprises a jack-up-vessel (1) comprising a hull, a main deck (5), an elevating jacking device and a plurality of jack-up legs, wherein said jack-up vessel (1) is elevated on its legs above the sea level by the elevating jacking device. Furthermore, the structure comprises a carrying and skidding system for shifting the topsides (12) from the platform jacket onto the main deck (5) of the jack-up vessel (1). Besides, the method comprises the following steps: position the jack-up vessel (1) close to the platform (12); position skid beams (18) on jack-up main deck (5) relative to the platform legs; push jacket skid beams toward the jacket legs; cut the platform jacket legs below the topside (12); and shift the topsides (12) on the skid beams (18) to the jack-up main deck (5).
STRUCTURE AND METHOD FOR DECOMMISSIONING AN OFFSHORE PLATFORM
Structure and method for decommissioning offshore platforms presenting topsides (12) mounted on a jacket having a plurality of jacket legs. The offshore decommissioning structure comprises a jack-up-vessel (1) comprising a hull, a main deck (5), an elevating jacking device and a plurality of jack-up legs, wherein said jack-up vessel (1) is elevated on its legs above the sea level by the elevating jacking device. Furthermore, the structure comprises a carrying and skidding system for shifting the topsides (12) from the platform jacket onto the main deck (5) of the jack-up vessel (1). Besides, the method comprises the following steps: position the jack-up vessel (1) close to the platform (12); position skid beams (18) on jack-up main deck (5) relative to the platform legs; push jacket skid beams toward the jacket legs; cut the platform jacket legs below the topside (12); and shift the topsides (12) on the skid beams (18) to the jack-up main deck (5).
STRUCTURE AND METHOD FOR DECOMMISSIONING AN OFFSHORE PLATFORM
STRUKTUR UND VERFAHREN ZUR AUSSERBETRIEBNAHME EINER OFFSHORE-PLATTFORM
STRUCTURE ET PROCÉDÉ DE DÉCLASSEMENT D'UNE PLATE-FORME DE FORAGE EN MER
LE GAL JEAN-CHRISTOPHE (Autor:in)
12.08.2020
Patent
Elektronische Ressource
Englisch
IPC:
E02B
HYDRAULIC ENGINEERING
,
Wasserbau
STRUCTURE AND METHOD FOR DECOMMISSIONING AN OFFSHORE PLATFORM
| Europäisches Patentamt | 2020
Decommissioning of Belmont Island, an Offshore Oil Platform
| British Library Conference Proceedings | 2005
OFFSHORE - Decommissioning dilemmas
Online Contents | 1996