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.

Issue Section:
Research Papers
Keywords:
cutting, fertilisers, oil drilling, waste disposal, oil based drilling fluids, drilling waste, drill cuttings, composting technique
Topics:
Composting, Drilling, Drills (Tools), Fertilizers, Soil, Waste disposal, Fluids, Petroleum
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Copyright © 2007
 by American Society of Mechanical Engineers
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