| 摘要 |
Guide arrangement for marine risers, in particular for offshore oil and gas operations, comprising
- at least one guide structure (21,22) for a length of riser,
- a frame assembly (10,10A-D) for supporting said guide structure,
- anchor means (11,12) at the seabed,
- tether means (13,14) connecting said frame assembly to said anchor means, and
- a buoyancy element (1) for keeping said guide structure (21,22) at a desired level in the sea during operation. The guide structure (21,22) is pivotably supported by said frame assembly (10,10A-D) with a pivot axis (21P,22P) being substantially horizontal. |
