The Independence Hub platform will be the world’s deepest production facility when it is installed in a water depth of 7,920 feet (2,414 meters) in Mississippi Canyon Block 920, 110 miles from the Mississippi River Delta, offshore Gulf of Mexico.
The platform is being developed to produce gas from discoveries by several operators in the region. A subsidiary of Enterprise and Cal Dive International indirectly own the facility, which initially is expected to handle production from 15 subsea wells in 10 fields in water depths ranging from 7,800 to 9,000 feet.
Independence is designed to handle peak production rates of 1 billion scf/D and 5,000 bbl/D of condensate. Excess capacity designed into the hull will allow up to 10 additional flow lines to be tied back to the hub to accommodate future discoveries in this ultra-deepwater area.
DSI’s responsibilities for the facility include coordination of mechanical completion and facility integration at the Kiewit Offshore Services (KOS) fabrication yard in Ingleside, Texas, and on-site in Mississippi Canyon. DSI’s proprietary Commissioning Certification Management System (CCMS) will be used to centralize all mechanical completion data, helping to ensure a smooth work process and reinforcing health, safety, and environmental requirements as well. Installation is expected to begin in late 2006.
"We are extremely pleased to have been selected to provide mechanical completion certification support for this record-setting project," stated David Landry, vice president of DSI. "Proper planning and coordination while at KOS will help in achieving more project milestones onshore in order to reduce offshore work scope, which in turn helps reduce costs and expedites a timely and safe start-up."
The work awarded to DSI follows a two-year engineering and design project produced by Houston-based Alliance Wood Group Engineering, the platform topsides process engineering contractor. Alliance’s role in the project originated with preliminary conceptual engineering in 2003 and proceeded through detailed design of the platform process, culminating recently in the award of further engineering to expand the platform capacity from 850 MMscf/D to 1.0 billion scf/D. In addition to significant compression facilities, the platform includes the world’s largest monoethylene glycol (MEG) injection and reclamation system.
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