Subsea decommissioning and installation project, US Gulf of Mexico

17th July 2015 By: Sheila Barradas - Creamer Media Research Coordinator & Senior Deputy Editor

Subsea decommissioning and installation project, US Gulf of Mexico

Name and Location
Subsea decommissioning and installation project, US Gulf of Mexico.

Client
Chevron North America Exploration and Production Company, a subsidiary of the Chevron Corporation.

Project Description
The project involves the decommissioning of the brownfield development and installation of new subsea equipment supporting a floating production system located in Mississippi Canyon, in the Gulf of Mexico, in water about 2 000 m deep.

The project includes:
• the decommissioning of existing equipment, including manifold, jumpers and flying leads;
• the fabrication and installation of 8.8 km of steel lazy wave riser, flowline and pipeline end terminations;
• the installation of 8.8 km gas lift umbilical, replacement manifold and associated hardware;
• the fabrication and installation of manifold foundation and seven jumpers; and precommissioning and testing.

Value
Not stated.

Duration
Not stated.

Latest Developments
Technip has been awarded a lumpsum contract for the decommissioning of the brownfield development and the installation of new subsea equipment.

The group’s operating centre in Houston, Texas, will perform overall project management.

The infield flowline and riser will be welded at the group’s spoolbase in Mobile, Alabama.

Vessels from Technip’s fleet are expected to perform the offshore installation in the second half of 2016. The Deep Blue, one of the world’s largest ultradeep-water pipelay and subsea construction vessels will install the steel lazy wave riser, flowline, and gas lift umbilical, while the Global 1200 will install the manifold and foundation.

Key Contracts and Suppliers
Technip (lumpsum turnkey contract for decommissioning and installation of new subsea equipment).

On Budget and on Time?
Not stated.

Contact Details for Project Information
Chevron Corporation, Cam Van Ast, tel +1 713 372 0063.
Technip, Laure Montcel, tel +33 1 49 01 8781 or email press@technip.com.