Engie E&P UK has reported the first gas from its satellite wellhead platform in the Southern North Sea, Cygnus Bravo.
The gas has been exported 7km south-east to Cygnus Alpha, another wellhead located 7km away at a plateau producing 250 million cubic feet per day since December last year.
The combined output from both the platforms was then transported from the Alpha processing unit through a 55km link to the Esmond Transmission System thereby reaching the Bacton gas terminal in Norfolk.
Engie E&P UK CEO Maria Moraeus Hanssen said: “This is a major milestone for the Cygnus development. It is a very successful achievement; well controlled and safely delivered.
“Gas from this second drill centre will contribute significantly to extending the plateau production that Cygnus Alpha has been achieving for the last eight months.”
The Cygnus field complex has four platforms and two subsea structures that serve nearly a field size of 250km².
The first gas was recovered from well B5, one of the platform’s ten well slots.
Three additional Bravo wells are expected to become online this month and a total of five will be available next year following the B1 well drilling.
Discovered in 1988 and sanctioned in 2012, Cygnus gas field is located 150km off the coast of Lincolnshire in water depths of less than 25m.
The field provides a significant energy security to the UK with estimated 2P reserves of 110 million barrels of oil equivalent (mmboe) and a production life of more than 20 years.
Engie E&P UK owns a 38.75% interest in the field, while Centrica and Bayerngas own 48.75% and 12.5%, respectively.
The partners are currently analysing additional opportunities within the Greater Cygnus area to increase recoverable gas volumes through Cygnus when capacity becomes available.
Image: Cygnus Bravo platform with the Seafox7 rig. Photo: Courtesy of ENGIE E&P.