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Chevron announces first gas at UK Alder Field

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Oilfield Technology,

"First gas at Alder represents a significant milestone for Chevron and highlights our commitment to investing and developing resources in the U.K.,” said Greta Lydecker, managing director, Chevron Upstream Europe. “The safe and successful completion of this project was underpinned by strong collaboration between Chevron and Alder co-venturer ConocoPhillips. Alder supports our goal of helping maximise the economic recovery of the U.K., adds significant production to our portfolio, and helps extend the field life of Britannia, an important asset to Chevron in the North Sea.”

Andy Samuel, chief executive at The Oil and Gas Authority, said: “We are very pleased to see the safe flow of first gas from the Alder Field. Chevron’s application of innovative subsea technologies and use of the U.K.’s experienced supply chain is closely aligned to the Maximising Economic Recovery Strategy, adding reserves and extending the life of an existing asset.”

Alder is a single subsea well tied back, via a 28 km pipeline, to the existing ConocoPhillips-operated Britannia Platform, in which Chevron holds a 32.38% non-operated working interest. The project has a planned design capacity of 110 million ft3 of natural gas and 14 000 boe/d. Production from the HPHT Alder Field is expected to ramp up over the coming months.

More than 70% of the Alder development work was executed by U.K. based companies, providing significant investment to the U.K. supply chain. The contracts supported several hundred jobs across a range of U.K. locations including Aberdeen, Invergordon, Leeds and Newcastle.

Discovered in 1975, the development has been enabled through the application of innovative subsea technologies designed to meet the temperature and pressure challenges of Alder. Key technologies have included a number of firsts for Chevron in the North Sea, including a vertical mono-bore subsea tree system; a subsea high integrity pressure protection system (HIPPS); and a specially designed corrosion monitoring system to measure the real time condition of the production pipeline.

Chevron Upstream Europe (CUE) is a strategic business unit of Chevron’s Europe, Eurasia and Middle East (EEME) Operating Company, and is headquartered in Aberdeen, Scotland. CUE manages the company’s upstream exploration and production interests in Denmark, Greenland, Norway and the United Kingdom. Chevron currently has over 800 upstream staff and contractors across its European operations, including the Global Technology Centre (GTC) in Aberdeen.

In the United Kingdom, Chevron North Sea Limited (CNSL) has working interests in 10 offshore producing fields, including three operated fields (Alba, 23.4%; Captain, 85%; and Erskine, 50 %) and seven non-operated fields (Britannia, 32.4%; Brodgar, 25%; Callanish, 16.5%; Clair, 19.4%; Elgin/Franklin, 3.9%; Enochdhu, 50%; and Jade, 19.9%). CNSL’s net daily production in 2015 from these fields averaged 40 000 barrels of liquids and 115 million ft3 of natural gas. More information about Chevron in the UK is available at

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