Saipem S.a.

Gianmarco Rota

Giulio Fatica

Floriano Casola

Roberto Palladini

Gianluca Sintini

An installation of bottom-to-surface connections of at least two undersea pipes (--) resting on the sea bottom (), and a rigid pipe (--) constituted by a vertical riser having its bottom end () fastened to a base (--) at the sea bottom (), and having its top end () tensioned by an immersed float (--); and a flexible connection pipe (--) providing the connection between a common floating support () and the top end () of the vertical riser via a junction device (--; wherein two hybrid towers are connected together by at least one rigid separator bar () having a length not less than the diameter of the larger-diameter float.

Facility comprising at least two bottom-surface links comprising vertical risers connected by bars

An installation of bottom-to-surface connections having a plurality of bottom-to-surface connections arranged in a fan from a common floating support. The installation having a first number k of first bottom-to-surface connections, with each first number of connections having a first riser connected to a first undersea pipe tensioned in substantially vertical manner by a first float, and a diving first flexible connection pipe connecting the floating support and first riser. The installation further having a second number m of second bottom-to-surface connection, with each second number of connections having a second rigid pipe connected to a second undersea pipe and tensioned by a second buoyancy element, and a second flexible connection pipe providing the connection between the floating support and the second rigid pipe.

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Mozzo, Italy

Gianmarco Rota