Specifications - Mardi Gras Oil and Gas Transportation System, Gulf of Mexico, USA
| Key Data | |
|---|---|
| Operator | BP |
| Fields | Green Canyon (Mad Dog, Holstein and Atlantis fields), Mississippi Canyon (Thunder Horse field) |
| Total length | 725km (450 miles) |
| Capability | 1 million b/d and 1.5 bcf/d (billion cubic ft of gas /day) |
| Water depths | 4,300ft to 7,200ft (1,200m to 1,950m) |
| Pipeline diameters | 16in, 20in, 24in and 28in |
| Steel | 120,000t southern Green Canyon Area, 70,000t Mississippi Canyon Area |
| Caesar Oil Pipeline System (Southern Green Canyon Area) | |
| Trunkline | Holstein spar to a shallow-water platform at Ship Shoal Block 332 |
| Water depth | 430ft |
| Lateral pipeline | Mad Dog spar ties to Caesar pipeline |
| Lateral pipeline | Atlantis semi-submersible facility to Mad Dog lateral |
| Cleopatra Gas Gathering System (Southern Green Canyon Area) | |
| Trunkline | Holstein spar to the Ship Shoal facility |
| Laterals | Mad Dog and Atlantis tying in |
| Proteus Oil Pipeline System (Mississippi Canyon Area) | |
| Catenary riser | Thunder Horse |
| Trunkline | Thunder Horse to South Pass Block 89E |
| Water | 400ft |
| Okeanos Gas Gathering System (Mississippi Canyon) | |
| Lateral | Thunder Horse |
| Trunkline | NaKika to Destin on Main Pass Block 260 |
| Key Players | |
| Preliminary engineering services | Intec Engineering |
| Detailed design | Intec Engineering |
| Steel catenary risers | Eight (two for each of the four host platforms) |
| Risers | 16in to 24in |
| Fusion-bonded epoxy (FBE) | Bredero in Alabama |
| J-lay installation | Heerema |
| Vessel | Balder |
| S-lay installation | Allseas |
| Vessel | Solitaire |
| Sleds and pipeline end terminals (PLETs) | Omega in Louisiana |
| No of sleds | 20 |
| Weight | 110t |
| Dimensions | 60ft by 20ft |
| Featured Suppliers | |
| Dillinger Hütte GTS - Steel Heavy Plate | |
| Shaw Pipeline Services - AUT Pipeline Inspection Technology and Procedures | |
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