General information
| Client | Shell |
| Project | Shell Olympus |
| Year | 2013 |
| Location | Gulf of Mexico |
| Vessels | Audacia |
| Max. water depth | 976 m (320 ft) |
Shell Olympus
Scope of work
- Structure design input and design/construction of start-up and laydown heads
- Installation of export pipelines, flowlines and SCR (with VIV strakes)
- Installation of J-mode PLET structures, S-mode ILS structures and J-mode stress joints (wet parked)
- Installation of suction piles and return sheave assembly for pipeline initiation
- Installation of 140 t, 8-slot manifold in 959 m (3146 ft) water depth
- Survey (pre-lay and lay support, post structure installation work)
- Crossing preparation
Project specials
- New method and components designed in-house to install J-mode stress joints using Audacia’s A-frame
- Early involvement with structure design to optimise installation
- PLET installation in 959 m (3,146 ft) water depth
- Anti-rotation yokes with buoyancy used for S-mode ILS structure installation in 900 m (2952 ft) water depth
- New FJC machine designed in-house to accommodate 5-layer syntactic polypropylene flowline insulation
Pipe characteristics
| Length (km/miles) | OD (inch) | WT (mm) | Steel grade |
|---|---|---|---|
| 5/40 | 16/18 | 19.1/15.9/16.7 | API-5L-X65/API-5L-X56 |
| 65/40 | 16 | 17.5/14.3/15.9/16.7 | API-5L-X65 |
| 11.7/7.3 | 8.625 | 28.8/33.45 | API-5L-X65 |
