System for supplemental tensioning for enhanced platform design and related methods

System for supplemental tensioning for enhanced platform design and related methods

Riser management systems, apparatus, and methods to maintain a selected range of tension on a plurality of risers extending between subsea well equipment and a floating vessel, are provided. A riser management system can include a mono-buoyancy can platform operably coupled to a plurality of risers...

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Hauptverfasser: ELLIS FIFE B, PALLINI JOE, WONG STEVE
Format: Patent
Sprache:eng
Schlagworte:
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
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creator ELLIS FIFE B
PALLINI JOE
WONG STEVE
description Riser management systems, apparatus, and methods to maintain a selected range of tension on a plurality of risers extending between subsea well equipment and a floating vessel, are provided. A riser management system can include a mono-buoyancy can platform operably coupled to a plurality of risers extending between subsea well equipment and a moored floating vessel, and a plurality of tensioner units each connected to a top portion of a separate one of the risers to provide tension to each of the risers. The mono-buoyancy can platform can provide tension to each of the risers sufficient to compensate for a relative vertical offset between the risers and the vessel due to vessel movement, which generally affects each of the risers equally, within tolerances, while the tensioner units can simultaneously provide tension to compensate for one or more additional factors which can affect each riser differently.
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subjects EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
HYDRAULIC ENGINEERING
SOIL SHIFTING
UNDERGROUND OR UNDERWATER STRUCTURES
title System for supplemental tensioning for enhanced platform design and related methods
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