ABSTRACT
Despite the fact that marginal field technology has been used extensively for many years (see Chapter 3) it is only comparatively recently that these systems have been used in North Sea type environments. As yet there is little operational experience of tension leg platforms (Hutton) or underwater manifold and control centres (Central Cormorant, NE Frigg). However, there are currently two floating production systems in the North Sea (Argyll and Buchan) which have been in production now for several years. It is worthwhile taking a fairly close look at the development and operating history of these two fields. Both fields illustrate the flexibility and adaptability of floating production systems and give a good insight into the phased development which is possible when using this type of technology. It is also instructive to look at how these systems have behaved in practice and the down time and reliability which has been experienced with these systems operating in North Sea conditions.
