Synthetic-based muds reduce pollution discharge, improve drilling

The US Environmental Protection Agency (EPA) has recognized synthetic-based drilling fluids (SBF) as a pollution-prevention technology, approving the on site discharge of SBF cuttings offshore, provided that operators meet stringent base fluids and cuttings-discharge criteria.1EPA favored a holistic environmental impact assessment, rejecting the zero- discharge option for SBF cuttings in all offshore locations.The agency based its decision on increased pollutant discharge that it expected would occur from additional use of water based and oil-based drilling fluids and on nonwater quality environmental impacts that include air emissions, fuel use, land disposal requirements, worker safety,...

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