BP Exploration Alaska, Inc. has begun an orderly and phased shutdown of the Prudhoe Bay oil field following the discovery of unexpectedly severe corrosion and a small spill from a Prudhoe Bay oil transit line. Shutting down the field will take days to complete. Over time, these actions will reduce Alaska North Slope oil production by an estimated 400,000 barrels per day.
The decision follows the receipt on Friday, August 4 of data from a smart pig run completed in late July. Analysis of the data revealed 16 anomalies in 12 locations in an oil transit line on the eastern side of the oil field.