Cygnus Gas Field

Summary Information

• Operator: ENI
• Country: UK
• Location: Southern North Sea
• Production start: 2016
• Partners: ENI (38.75%), Spirit Energy (61.25%)
• Type: Gas
• Estimated Reserves: gross 2P reserves of approximately 18 billion cubic metres
• Production Volume:

Description

• Cygnus is the largest gas discovery in the Southern North Sea for 30 years is now the largest single producing gas field in the UK
• Two drilling centres target ten wells. Cygnus Alpha consists of three bridge-linked platforms: a wellhead drilling centre, a processing/utilities unit and living quarters/central control room.
• Cygnus Bravo, an unmanned satellite platform, is approximately seven kilometres northwest of Cygnus Alpha.
• Gas is exported via a 55 km pipeline. Cygnus connects via the Esmond Transmission System (ETS) pipeline to the gas-treatment terminal at Bacton, Norfolk
• It is planned that construction will start in April 2013 with first gas expected in 2015
• The Cygnus partnership plans to invest £1.4 billion to develop the project

Contractors

• **AMEC:** Front End Engineering Design (FEED)
• **Burntisland Fabrications:** Design, procurement and construction of four jackets, complete with piles
• **Heerema Fabrication:** fabrication and commissioning of four topsides
• **Proserv:** Design, engineering and build of wellhead control panels and accompanying topside umbilical termination unit for the Alpha and Bravo platforms

History

• 2008 - Tullow sold its stake to Venture
• 2009 - Successful appraisal well drilled
• 2010 - Appraisal completed
• 2011 - AMEC awarded FEED contract
• 2012 - Project development approved by UK Government
• 2012 - Major contracts signed by GDF Suez
• 2012 - Construction starts on Cygnus Alpha Wellhead Platform
• 2016 - First gas produced
• 2017 - Spirit Energy inherits stakes from Centrica and Bayern Gas
• 2018 - Neptune acquired Engie's stake
• 2023 - ENI agrees to acquire Neptune

Links

1. Sale of 10 CMS Area blocks to Venture Production plc
2. AMEC awarded FEED contract for GDF SUEZ E&P UK’s Cygnus field in Southern North Sea
3. Successful Southern North Sea appraisal well
4. EIS Report
5. Second Western Area Well Success Completes Cygnus Field Appraisal
6. Centrica welcomes shallow water gas field allowance
7. Cygnus project brings 1,200 jobs to UK
8. BiFab secures a £47m contract and creates 100 new jobs
9. Cygnus project award for Heerema Fabrication Group's Hartlepool yard
10. Proserv wins Cygnus topside controls contract
11. Construction starts on Cygnus gas development
12. Scottish Jobs Boost As Cygnus Jacket Fabrication Begins
13. Spirit Energy launched following completion of Centrica and Bayerngas Norge E&P joint venture
14. Neptune Energy completes the acquisition of ENGIE E&P International SA
15. Eni and Vår Energi to acquire Neptune, a leading independent exploration and production company with low emission, gas-oriented operations in Western Europe, North Africa, Indonesia and Australia