The Taylor wells are leaking an average of less than one- third of a barrel of oil each day, the Interior Department said. The leaks have been “substantially reduced” over the years by containment domes and other interventions, Taylor said in a statement yesterday.
1/3 of a barrel is 14 gallons. The slick we measured on June 18 satellite imagery holds an estimated 3,157 gallons of oil, assuming the slick is only 1 micron thick. It would take 225 days, at a rate of 14 gallons per day, to make an oil slick that large. Oil on the surface of the ocean can’t survive that long — especially a slick that’s only 1/1000th of a millimeter thick.
The leakage rate from these wells in recent days must be significantly higher, probably in the range of 100-400 gallons per day. If they’ve been leaking at that rate since Hurricane Ivan, that’s a total of 210,000-840,000 gallons of oil. To put it in perspective, less than one day’s worth of leakage from BP’s Macondo well.