Independence
Independence is a deepwater semi-submersible platform in the Gulf of Mexico, installed in 2007 as a dedicated natural gas production hub. It gathers and processes gas from multiple subsea fields and exports via a major trunk pipeline system. The facility is moored and designed specifically for gas handling and compression.
Operator: Anadarko
Status: Decommissioned
Image Source: Anadarko (All rights belong to the original owner.)
Production: Gas
Operations start: 2007
Water depth: 2438 m
Country: USA - New Orleans District
Block: MISSISSIPPI CANYON 60. Block 920
Type: Semi-sub
Field
The Independence Hub is located in Mississippi Canyon, Gulf of Mexico, and is associated with multiple gas fields including Atlas, Atlas Northwest, and others. Reservoirs are primarily Miocene-age sandstones. The development is large-scale, designed as a regional gas gathering and export system.
Facilities
Independence Hub is a semi-submersible platform connected to numerous subsea gas wells via flowlines and manifolds. The facility is designed for gas processing, including separation of liquids, dehydration, and high-capacity gas compression. Produced gas is exported via the Independence Trail Pipeline, a major deepwater gas transmission system connecting offshore production to onshore markets. Condensate liquids are stabilised and exported via pipeline. Subsea infrastructure includes extensive flowlines, manifolds, and electro-hydraulic umbilicals for control and chemical injection. Flow assurance is critical, with dehydration and chemical injection systems preventing hydrate formation. Power is generated onboard using gas turbines. The hub-and-spoke design allows multiple fields to tie into a central processing facility, maximising infrastructure efficiency and enabling large-scale gas export from deepwater reservoirs.
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