The output mineral solids
Mineral solids from TCC operations are used for various purposes, such as filler in asphalt, for road and other construction purposes, and as protection layer at landfill sites. At least one of the TCC customers, Soilcare AS in Norway, has a 100% recovery rate of the solids from the process, but to achieve that there is a need for thought through product control measures both to satisfy customer needs and legal requirements.
Particular solids may well be used for specific purposes, but with a high variation in solids composition during the drilling operation, the need for logistic and product control will then have to be emphasized further.
The solids will contain some remains of hydrocarbons, normally between 500 and 2000 ppm.