Riser assembly and method of forming a riser assembly
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United States of America Patent
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Jul 18, 2017
Issued Date -
N/A
app pub date -
Dec 22, 2014
filing date -
Dec 22, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A riser assembly for transporting fluids from a sub-sea location is disclosed. The riser assembly includes a riser having at least one segment of flexible pipe and a plurality of buoyancy compensating elements connected to the riser and connected together in an in-line configuration to form a mid-line buoyancy section. The riser assembly also includes at least one buoyancy aid connected to the riser at a position above and spaced apart from the mid-line buoyancy section. The at least one buoyancy aid forms a first distributed buoyancy section and is sufficiently buoyant to maintain a tension load on the riser between the first distributed buoyancy section and the mid-line line buoyancy section. The riser assembly further includes at least one further buoyancy compensating element connected to the riser at a position above and spaced apart from the first distributed buoyancy section to form a second distributed buoyancy section. The second distributed buoyancy section is configured to support a portion of the riser in a wave configuration.
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