UK NORTH SEA – MARINER OILFIELD ON STREAM
Equinor and partners announced first oil from the Mariner field in the UK North Sea. The field is expected to produce more than 300 million barrels of oil over the next 30 years.
“The start-up of Mariner, the first Equinor-operated oil field on the UKCS, establishes our foothold in the UK and reinforces our commitment to be a long-term energy partner,” says Hedda Felin, senior vice president for UK and Ireland Offshore in Equinor.
The Mariner reservoirs have up to 3 billion barrels of oil in place, a 50% increase on what was originally assumed, and the estimated recovery rate has already been increased by 20 percent. Mariner is expected to produce annual average plateau rates of around 55,000 barrels of oil per day and up to 70,000 barrels of oil per day at peak production.
“By gathering and interpreting new seismic data we have improved our understanding of the reservoirs. This has resulted in fewer and better placed wells and increased resources since the project was sanctioned in 2012. With the significant volumes in place, we see clear potential to further increase the oil recovery from the Mariner field,” says Anders Opedal, executive vice president for Technology, Projects and Drilling in Equinor.
Mariner is one of the largest industrial projects in the UK in recent years. A gross investment of more than $7.7 billion, the development will support more than 700 long term jobs and generate significant revenue in the supply chain for decades to come. Contracts worth more than $1.3 billion have been awarded to UK suppliers since the project started.
“With the start-up of Mariner, we have delivered one of the most complex developments in the North Sea and Equinor’s portfolio. We will continue to apply digital solutions and new technology to deliver safe and efficient operations and optimize production,” says Opedal.
Digital solutions include automated drilling, digital twin, field worker tools, and digitized logistics to support operational and field maintenance planning.
In the UK, Equinor has established a broad energy portfolio including oil, gas and offshore wind, with Mariner as the foundation of its upstream operations.
Mariner is located on the East Shetland Platform of the UK North Sea, approximately 95 miles or 150 kilometres east of Shetland and 320 kilometres north-east of Aberdeen. Drilling will be carried out from the PDQ drilling rig, with a jack-up rig assisting for the initial period. Around 100 wells will be drilled over the first 12-14 years.
(Source and image: Equinor – Mariner platform/Jaimie Baiki/Michal Wachucik)
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