London Marine Consultants to Supply Turret for Libra’s EWT FPSO

Rob Almeida
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January 11, 2015

The HESS – PERISAI KAMELIA FPSO outfitted with an LMC-designed external turret mooring system, file image (c) R. Almeida/gCaptain

London Marine Consultants (LMC), a subsidiary of Singapore-based offshore contractor Ezra Holdings Ltd announced today the receipt of a contract by Jurong Shipyard to supply an external turret mooring system for the Libra field’s Extended Well Test (EWT) FPSO vessel – formerly the Navion Norvegia shuttle tanker which is currently being converted.

LMC are specialists in the design of turrets for Floating Production, Storage and Offloading (FPSO) vessels. This contract includes engineering, procurement and construction (EPC) of the complete external turret as well as the design of the mooring lines, plus riser analysis and engineering support for integration of the turret and swivel stack onto the FPSO at Jurong Shipyard.

Petrobras operates the Libra oil field located in Santos Basin, about 230 kilometers offshore Rio de Janeiro, Brazil, north of Tupi field. This oil field is estimated to contain recoverable resources ranging between eight billion to 12 billion barrels of oil and is one of the largest deepwater oil accumulations globally.

OOGTK Libra GmbH & Co KG, a joint venture between Brazil’s Odebrecht Oil & Gas and Teekay Offshore owns the EWT FPSO and will charter it to Petrobras for a minimum period of 12 years.

Engineering and project management are currently underway in the Group’s London office, with turret fabrication planned at TRIYARDS in Vietnam, another subsidiary of Ezra Holdings. Under a sub-contract from LMC, OneSubsea will manufacture an advanced swivel stack in Norway, with six swivels, including two high pressure (550 bar) gas injection swivels, in time for integration of the complete turret onto the FPSO
in 1Q2016.

550 bar may be a lot of pressure to contain within a turrel swivel, but it’s not the top end of the range. SBM Offshore came out with a gas injection swivel this year that tops out at 830 bar, a critical achievement when it comes to producing hydrocarbons from ultra-deep reservoirs. Read more about it HERE.


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