Shell picked Technip to provide engineering, procurement, and installation services covering subsea infrastructure at the Stones field in the US Gulf of Mexico.
The contract's scope includes installation of the subsea production system and Stones lateral gas pipeline, inclusive of associated project management, engineering and stalk fabrication.
Technip's operating center in Houston, Texas will perform the overall project management. The flowlines and risers will be welded at Technip’s spoolbase in Mobile, Alabama. The offshore installation is expected to be performed 2H 2014 by the Deep Blue deepwater pipelay vessel.
Shell's Stone field is located inside the Walker Ridge license area, at a water depth of approximately 2,900m (9,500ft). This development will host the deepest floating, production, storage and offloading (FPSO) unit in the world and will be Shell’s first FPSO in the Gulf of Mexico.
The development will start with two subsea production wells tied back to the FPSO vessel, followed later by six additional production wells. This first phase of development is expected to have annual peak production of 50,000 boe/d from more than 250MMboe of recoverable resources. Shell said in May that Stones field has significant upside potential and is estimated to contain over 2 billion boe of oil in place.
In July, ths supermajor awarded SBM Offshore a $1 billion contract to supply the FPSO, which will be a converted Suezmax with a turret and a disconnectable buoy (Buoyant Turret Mooring or BTM) allowing it to weathervane in normal conditions and disconnect from the FPSO upon the approach of a hurricane. The FPSO will have a processing facility capacity of 60,000 bo/d day and 15 mmscfd of gas treatment. The Suezmax hull will be able to store 800,000 barrels of crude oil and total topsides weight will reach 7000 tons.
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