One of the Largest Semi-submersible Production Platforms in the World

Client: Chevron

Entities: KBR; GVA; Granherne

Location: Gulf of Mexico - Walker Ridge Block 718

Scope: Conceptual Design, Pre-FEED & FEED; Detailed Engineering; Procurement Support; Fabrication Site Support (Korea and US)

Status: Completed 2013

Details:•Following the successful completion of conceptual engineering and design, pre-FEED

and FEED, KBR was awarded a contract for design and engineering support through fabrication for the deep draft semi-submersible including: hull, deck box, accommo-dations, appurtenances, equipment foundations; mooring system design; and anchor suction piles.

•GVA Consultants, a subsidiary of KBR, worked exclusively on the hull configuration. The GVA 33000 semi-submersible design minimizes vessel motion and allows acceptable fatigue lives of the moorings, risers and umbilicals.

•KBR subsidiaries GVA and Granherne collaborated on execution phase of project.

•Hull weight: 56,000 mt (61,730 tons)

•Length: 479 ft (146 m)

•Width: 449.5 ft (137 m)

•Water depth: 7,000 ft (2,133 m)

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Jack St. Malo FPU

Gulf of Mexico

One of the Largest Semi-submersible Production Platforms in the World

Client: Chevron

Entities: KBR; GVA; Granherne

Location: Gulf of Mexico - Walker Ridge Block 718

Scope: Conceptual Design, Pre-FEED & FEED; Detailed Engineering; Procurement Support; Fabrication Site Support (Korea and US)

Status: Completed 2013

Highlights:•One of the largest semi-submersible production platforms in the world

•The first semi-submersible floating production unit designed and built as a low-motion unit for the Gulf of Mexico

•An example of our ability to offer integrated solutions through the combined expertise of KBR and our subsidiaries

Jack St. Malo FPU

Gulf of Mexico