This paper presents the potential of composting oil wet drill cuttings as a drilling waste disposal option. The potential is substantiated by results from several laboratory and field experiments. Artificially oil wetted drill cuttings were prepared by adding commonly used base oils from Norwegian offshore operations to a representative clay. Degradation of the hydrocarbon components in the oily wet cuttings by vermicomposting was successfully accomplished. The composts were beneficially used as part of growing media for landscape plants; ryegrass, coniferous, and deciduous trees, and the fertilization effect was compared with commercial NPK fertilizers. The plant growth studies showed that the composts produced by treating artificial oily drill cuttings by vermicomposting had considerable fertilizing effect on ryegrass and trees.
Experimental Study of Composting Oil Wet Drill Cuttings as a Drilling Waste Disposal Option
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Sørheim, R., Paulsen, J. E., Saasen, A., Leleux, J., Albouy, A., Haraldsen, T. K., Pedersen, P. A., Hartnik, T., and Linjordet, R. (May 24, 2007). "Experimental Study of Composting Oil Wet Drill Cuttings as a Drilling Waste Disposal Option." ASME. J. Energy Resour. Technol. December 2007; 129(4): 307–313. https://doi.org/10.1115/1.2790982
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