Development of Alder has been enabled through the application of subsea technologies designed to meet the temperature and pressure challenges of the field. Key technologies have included a number of firsts for Chevron in the North Sea, including a vertical monobore subsea tree system, subsea high-integrity pressure protection system (HIPPS), and specially designed corrosion monitoring system to measure the real-time condition of the production pipeline.
Discovered in 1975, Alder field is operated by Chevron North Sea with 73.7 interest. ConocoPhillips (UK) Ltd. holds the remaining 26.3%.
In the UK, Chevron North Sea has working interests in 10 offshore producing fields, including three operated fields (Alba, 23.4%; Captain, 85%; and Erskine, 50%) and seven nonoperated fields (Britannia, 32.4%; Brodgar, 25%; Callanish, 16.5%; Clair, 19.4%; Elgin-Franklin, 3.9%; Enochdhu, 50%; and Jade, 19.9%).
The Chevron unit’s net production in 2015 from these fields averaged 40,000 b/d of liquids and 115 MMcfd of gas.