Spar platform leadership: Evolving and successful know how
As initial holder of the Spar license with McDermott, Technip has a long established track record in deepwater Oil & Gas development. Since 1996, Technip has delivered 14 of the 17 Spar platforms in operation to-date. We recently completed the construction of one more Spar for the Lucius project in the Gulf of Mexico
A Spar is a long slender body that floats vertically, with its center of gravity below its center of buoyancy. All other floating platforms have their centers of gravity above their centers of buoyancy, and could flip over.
Spars are inherently safe because they cannot flip over. In addition to inherent safety, a Spar is the most stable floating platform for supporting risers and guiding top tensioned risers. The deep draft of the Spar minimizes vertical motion and Spars inherently pitch (rotate) around their keel (bottom), close to where the risers exit. The keel then is the place of minimum vertical and lateral motion, ideal for supporting the risers.
© Stéphane Jungers
As initial holder of the Spar license with McDermott, Technip has a long established track record in deepwater Oil & Gas development. Since 1996, Technip has delivered 14 of the 17 Spar platforms in operation to-date. We recently completed the construction of one more Spar for the Lucius project in the Gulf of Mexico. Our Spars have been deployed in a water depth range of 590
The Spar technology continues to evolve with innovations for: ultra-harsh environments in the North Sea, ice resisting structures and moorings for the Arctic region, condensate storage for remote gas field developments, and open sea floatover installation of large topsides.
Spar hulls have mostly been built in our fabrication yard in Pori, Finland, but we have also built Spar hulls in the US and Malaysia. With Houston as our center of reference in the field, Technip is able to provide Spars from design to delivery.
In May 2011, we were awarded a 10-year master agreement by BP Exploration and Production, Inc. The agreement covers the design, procurement and construction of hulls and mooring systems for Spar platforms to be located in the Gulf of Mexico, as well as the design of top tension risers for dry tree units.
In August 2011, Anadarko Petroleum Corporation issued a Letter of Intent to Technip for the engineering, construction and transport of a 23,000 ton Truss Spar(1) hull for their Lucius field development (Gulf of Mexico).
These contracts show there is a market for Spars because they are an inherently stable platform to support risers and assure human safety. Moreover, Technip is known for its first in class Spar delivery performance.
(1) Three different kinds of Spars:
- The Truss Spar has a bottom part made of a truss structure linking together the heave plates.
- The Classic Spar has a single long tubular section.
- The Cell Spar is a classic Spar made of large diameter tubes assembled together radially. This design allows a fabrication in a not specialized construction yard.