Page 68: of Offshore Engineer Magazine (Apr/May 2013)

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The partnership was also chal- lenged to signifcantly expand the capacity of its existing Constitution spar foating production facility with the addition of nearly 1,300

Eyebrow tons of processing equipment to the

Subsea Tiebacks topsides of the facility. In response, the project team designed the two riser systems, the fexible riser and the steel lazy wave riser, concur- rently.

The project design team also required that fow lines, risers, manifolds, trees and multi-phase fow meters accommodate an envi- ronmental pressure of nearly 13,000 psi. After qualifcation testing, the

Source: Anadarko Petroleum Corp.

2067_Zetechtics_half_corporate_Layout 1 14/03/2013 10:33 Page 1 partnership selected the steel lazy

The steel lazy wave riser, specifcally designed for the Caesar-Tonga project, is wave riser design, making this the not a true steel catenary riser, but rather a variation with added buoyancy and frst application of such technology fexibility. in the Gulf of Mexico and only the

Anadarko’s general manager of deepwater riser system that would second application of this technol-

Gulf of Mexico deepwater facili- safely overcome the challenges of ogy in the world.

ties. “That also contributes to the a complex deepwater environment “The Caesar-Tonga mega proj- primary engineering challenge of and that could operate under the ect provides an illustration of the successfully delivering the Caesar- high producing pressures expected value of Anadarko’s hub-and-spoke

Tonga project, as it required a from the Caesar-Tonga reservoirs.” philosophy, as it was able to avoid

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