Enhanced mineral oil based mud (EMOBM)

Enhanced mineral oil based mud (EMOBM) means a drilling fluid in which the continuous phase is a highly-purified petroleum distillate which should have a total polycyclic aromatic hydrocarbon concentration of less than 10 mg/kg, be relatively non toxic in marine environments and have the potential to biodegrade under aerobic conditions.

Source:  Offshore Waste Treatment Guidelines, The Canada-Newfoundland and Labrador Offshore Petroleum Board, Canada-Nova Scotia Offshore Petroleum Board, and National Energy Board, Canada, December 15, 2010. Regulatory Guidance

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