Due to the water depth in the area, Schiehallion is entirely reliant on subsea production technology and is collected on a floating production, storage and offloading vessel.

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The Chinguetti development will include six production wells, four water injection wells, and a gas injector well, attached to a permanently moored floating production, storage and offloading vessel situated in about 800 metres of water.

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The project (known as Quad 204) involves upgrading and replacing subsea facilities, as well as replacing the existing Schiehallion floating, production, storage and offloading vessel.

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