Norwegian oil and gas company Equinor has revised its estimate of the total recoverable reserves in the Mariner field to about 180m barrels (mmbbl).
According to an earlier assessment, the field was estimated to contain recoverable reserves of nearly 275mmbbl.
Located on the East Shetland Platform of the UK North Sea, nearly 150km east of Shetland, the Mariner field comprises two reservoirs that include Heimdal and Maureen. The field commenced production in August 2019.
Equinor stated that the revision to the resource estimates for its oilfield would result in an impairment charge of US$1.8bn.
The Mariner field development consists of a production, drilling and quarters (PDQ) platform based on a steel jacket. Oil produced from the field is exported to a floating storage unit (FSU) and later transported to shore via tankers.
With a stake of 65.11%, Equinor is the operator of the field, while JX Nippon, Siccar Point and ONE-Dyas are its partners.
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