|
Client
|
Mobil Exploration & Producing, U.S., Inc.
|
|
Region
|
Gulf of Mexico
|
|
Location
|
Main Pass 283 & Viosca Knoll 734
|
|
Water Depth
|
303-320 ft.
|
|
Services Performed
|
Detailed Engineering, Fabrication, Marine Installation
|
| Contractor |
J. Ray McDermott,
Inc. |
| Award |
October, 1997 |
| Completion |
October, 1998 |
Design |
JRM Engineering - New
Orleans |
| Prod. Capacity
|
15,000 bbl/day Oil
150MMCFD Gas |
|
|
Description:
- 4 Pile, 6 Well D & P Platform at MP 283 (303’
WD)
- 3 Pile, 4 Well Protector Platform at VK 734 (320’
WD)
- Jackets and Decks installed by Lift
|
 
Innovation:
- 340’ Tripod at VK 734 installed by DB101 using a
2 hook upend method, which eliminated the flooding system
and closure pates.
- The 150 ton Quarters building on the MP 283 deck was utilized
as a counterweight to maintain a level lift. (see photo)
- The main deck components were reused from a salvaged deck
provided by Mobil.
- Numerous pre-existing jackup spud can depressions
dictated the geometry and orientation of both structures.
Technology:
- The 3900 ton MP 283 deck was installed by the SLC5000
over an existing wellhead. (see photo)
- The soil consultant provided cone penetrometer results
at MP 283 to reduce the pile depth in a deep hard sand layer.
|
