Drill cuttings are the broken bits of solid material removed from a borehole drilled. Boreholes drilled in this way include oil or gas wells, water wells, and holes drilled for geotechnical investigations or mineral exploration.

Drill cuttings are produced as the rock is broken by the drill bit advancing through the rock or soil; the cuttings are usually carried to the surface by drilling fluid circulating up from the drill bit. Drill cuttings are separated from the drilling fluid by shale shakers (for liquid drilling fluid).

When contaminated with oil based drilling fluids, the drill cuttings usually cannot be disposed without treatment to reduce oil content. Several treatment methods are available and local conditions is essential in determining which method would be used. Soiltech has the knowledge and technology to treat oil contaminated drill cuttings to a disposable level.