Stolt Offshore S.a.

Grégoire François Christian De Roux

Jean-Luc Bernard Legras

Tegwen Bertrand Marie Miorcec De Kerdanet

This invention relates to a marine riser tower () for use in the production of hydrocarbons from offshore wells. The riser tower () includes a plurality of fluid conduits, which may comprise production flow lines (P), gas-lift lines (G), water injection lines (W) and/or umbilicals (U). The conduits are supported in a single structure, and at least one of said conduits is provided with its own insulation within said structure.

Marine riser tower

The invention relates to a marine riser tower having a plurality of rigid metallic conduits bundled together with a metallic tubular core. The conduits may include production lines for hydrocarbons, water injection lines, and/or gas lift lines. A production line or gas lift line is located within the core, while the water injection line is located outside the core.

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Paris, France

Grégoire François Christian De Roux