World`s first subsea separation and injection plant destined for Troll C
In the future, commercial oil and gas production will require equipment that can be operated at great depths and far from existing infrastructure. Greater water depths, longer distances to infrastructure, and more stringent legislation call for innovative thinking. As the petroleum industry moves to developing less accessible reservoirs, ABB is developing new technology that will make it possible to situate operating equipment at depths of 1,000--1,500 m. The key to deep, remote subsea operations is dealing with produced water. ABB`s Subsis (subsea separation/injection system) project is an attempt to meet these challenges by developing a seabed processing system to separate oil and water and reinject water into a reservoir. Water in the oil and gas to be produced represents a significant problem in terms of cost. By separating the produced water on the seabed and either reinjecting it into the reservoir or dumping it into the sea, it is possible to reduce transportation costs and reduce topsides equipment facility costs and problems associated with hydrates and corrosion. At the same time, it is possible to enhance the utilization of the reservoir. The paper describes the separation module and discusses the Troll project. Troll C will be installed to produce a thin oil layer within the giant field`s Troll West gas province.
- OSTI ID:
- 514793
- Journal Information:
- Oil and Gas Journal, Vol. 95, Issue 34; Other Information: PBD: 25 Aug 1997
- Country of Publication:
- United States
- Language:
- English
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