S. Young, J. Candler, K. Clements, MI SWACO
With the use of invert emulsion fluids, environmental responsibility has increased the cost and liability associated with the disposal of contaminated drill cuttings. In environmentally sensitive areas it is unlikely that any discharges of contaminated cuttings will be permitted and responsible treatment methods must be found to minimize future liability. Development of an invert emulsion drilling fluid designed for both the high performance drilling and optimized treatment of contaminated cuttings has been a key in minimizing environmental impact. Developing efficient treatment techniques for the local environment has been equally as important. True environmental responsibility has been achieved by combining chemistry and treatments to produce an end product which can be beneficially re-used in the local environment. The Authors will discuss the drilling fluid chemistry and treatment techniques, will show the field performance of these fluids, and will review the potential for beneficial Reuse of contaminated cuttings in this context and show results of field trials.