Cuttings treatment technology - CTT

On the Norwegian Continental Shelf (NCS) there is an estimated 80-100 000 MT of oil saturated drill cuttings being generated annually. The most common method for disposal of drill cuttings on the NCS is transportation to shore, referred to as Skip and Ship. Drill cuttings are stored in skip containers and transported to shore by supply vessels for onshore thermal treatment where high temperature from a heat source separates oil and water from the cuttings. The environmental impact from transportation and onshore treatment of the cuttings is substantial. Dedicated vessels are required, and extensive idle time is common. This DEMO2000-pilot has demonstrated the world's first mechanical treatment of drill cuttings. Soiltech's Cuttings Treatment Technology (CTT®) substantially reduces the energy consumption compared to existing treatment technology. The technology enables discharge to sea (or ground for an onshore operation) of the drill cuttings, subject to project specific approvals. It reduces the need for transportation and thus reduces the greenhouse gas emissions related to drill cuttings treatment.