Floating production systems
As a champion of floating natural gas liquefaction technology, Eni is positioning itself to play a major role in Africa with a fast-growing gas-liquefaction capacity targeted to reach 14 million tonnes per year by 2028.
The Japanese company ratcheted up the competitive nature of contracting for a floating production, storage, and offloading vessel and an onshore liquefied natural gas plant for the Abadi project by announcing dual front-end engineering design (FEED) contracts.
Deepwater Yellowtail project, onstream 4 months ahead of schedule, is expected to produce an average of 250,000 BOPD.
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This paper describes the CLOV deepwater megaproject in Block 17 offshore Angola, which cost USD 8.4 billion to first oil. -
Historically, the marine systems on a spar are relatively simple.
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Construction costs, contractor involvement, flow assurance, and the integration of new technologies created to improve production are some of the deepwater challenges exacerbated by the current low price environment.
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As many platforms begin to produce beyond their design life, maintenance of mooring systems becomes more critical. With redundancies in place, operators may be unaware of initial failures, which can have major consequences if another failure occurs.
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A routine maintenance project became more complicated when an ROV inspection exposed unexpected trenching that reduced the holding capacity of the system.
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Though the projects that have already been sanctioned will ensure that spending in the FPS sector will remain high over the forecast period, the growth in FPS market is significantly less than expected due to the collapse in oil prices, and installations in 2018 will decline.
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A deepwater field located offshore Sabah, east Malaysia, features a spar dry-tree unit (DTU) and multiple subsea-hub tiebacks to a floating production, storage, and offloading vessel (FPSO).
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After 10 years, the world’s first cell spar, Anadarko’s Red Hawk, was decommissioned. It remained the only cell spar fabricated and again made history as the deepest floating production unit ever decommissioned in the GOM.
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For Anadarko, the secret of the “design one, build many” approach to offshore production facilities is to control its enthusiasm for change. The company’s experience with eight operated spars shows the benefits gained with this approach.
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Semisubmersible floating production systems (SFPSs) with steel catenary risers (SCRs) are attractive field-development solutions, especially in deeper water of Western Australia. However, SCR design is challenging in the offshore Western Australia environment because of severe cyclonic environments.
