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Figure 6.29 – SPAR Projects
The world’s first production Classic SPAR, Neptune, was installed in the Gulf
of Mexico in 1996. Oryx Energy developed Neptune, and was later acquired by
Kerr-McGee in 1999. The Classic SPAR hull is basically a cylinder (fig. 6.30).
This cylinder is separated into three main sections: 1. Upper section –
compartmentalized and filled with air to provide the buoyancy; 2. Centerwell –
flooded with seawater; 3. Keel section (“Soft Tank”) – compartmentalized to aid in
transportation. Also contains any field-installed ballast.
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