BG Group has a majority interest in the BP-operated Central Area Transmission System (CATS) pipeline – a 404 km long, 36 inch diameter wet gas pipeline, linking the Everest Platform to Teesside. The pipeline starts at the steel, fixed-jacket CATS Riser Platform, bridge-linked to the Everest Platform, some 230 km east of Aberdeen.
The capacity of CATS is in excess of 1.7 bcfd. The other co-venturers in CATS are Amerada Hess, ConocoPhillips, Eni, and Total.
CATS became operational in 1993, to coincide with first gas from the Everest and Lomond Fields. At the present time gas from other nearby fields such as Armada, Erskine, Jade, Joanne, Judy, Seymour, Maria and a number of other North Sea fields is also transported through CATS to the terminal at Teesside.
There are six sub-sea tees on the CATS pipeline, which are available for future tie-ins. The gas is processed either in a nearby facility or in the CATS Terminal, where two processing trains process it to the requirements of the NTS, and separate out the saleable liquids propane, butane and C5+.
The National Transmission System (NTS) connections were not part of the original plan for CATS, but were added in 1997, and 1998, when the terminal’s gas handling capacity was upgraded to meet the demands of the growing UK gas market. Total processing capacity at the CATS Terminal is now 1200 mmscfd.
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