发明名称 |
HYBRID RISER TOWER AND METHODS OF INSTALLING SAME |
摘要 |
Disclosed is a riser comprising a plurality of pipelines. In one example there are three such pipelines, extending from the seabed toward the surface and having an upper end supported at a depth below the sea surface, wherein, in one embodiment a first of said pipelines acts as a central structural core, the other pipelines being arranged around said first pipeline. In another embodiment three pipelines are arranged around a structural core. In each case, the first of said pipelines may be a fluid injection line, said other pipelines being production lines. Also disclosed is a riser having buoyancy along at least a part of its length, said buoyancy resulting in said riser having a generally circular cross-section, the circumference of which being non-contiguous. Methods of installing such risers are also are also described. |
申请公布号 |
WO2008056185(A3) |
申请公布日期 |
2009.02.19 |
申请号 |
WO2007GB50675 |
申请日期 |
2007.11.06 |
申请人 |
ACERGY FRANCE SA;ACERGY UK LIMITED;SAINT-MARCOUX, JEAN-FRANCOIS;BRANCHUT, JEAN-PIERRE;DE-ROUX, GREGOIRE |
发明人 |
SAINT-MARCOUX, JEAN-FRANCOIS;BRANCHUT, JEAN-PIERRE;DE-ROUX, GREGOIRE |
分类号 |
B63B35/44;E21B17/01 |
主分类号 |
B63B35/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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