Canadian oil and gas company Iona Energy Inc. has stated that its North Sea Huntington Field is ready for full ramp-up once restrictions to the CATS (Central Area Transmission System) system are lifted.
In October 2014 CATS operator, BP informed the Huntington operator E.ON that the field’s gas exports would be restricted due to problems with the transmission system. As a consequence, Huntington’s oil production was also reduced by around 40%.
Before the restriction, Huntington’s full capacity was 30,000 bbl/d of oil and 27 MMcf/d of gas.
Production was scheduled for an early December restart, but an incident with the CATS riser platform delayed the plan until mid-December, when the field was able to produce, but only at a restricted rate.
E.ON has stated that the riser platform is now repaired, but that Huntington’s access to the CATS system is delayed while other fields are brought on line.
The restrictions occurred when the CATS gas terminal in Teeside, northeast England, received off- specification gas from an unknown source.
CATS comprises a fixed riser platform, linked to the Everest platform, a 404km subsea pipeline with 1700 Mcf/d capacity, and a two-train onshore processing terminal. BP has stated that normal CATS service is now being resumed. However, Huntington’s ‘wet’ gas, must wait until other ‘dry’ gas fields resume production – providing the required blend of wet and dry gas streams.
E.ON owns a 25% stake in the Huntington field, with partners Premier Oil, Noreco and Iona holding 40%, 20% and 15%, respectively.