PROCESS FOR CONVERTING WELL DRILL CUTTINGS INTO RAW MATERIALS FOR THE PRODUCTION OF CEMENT AND CEMENT COMPOSITIONS OBTAINED THEREFROM

摘要

In a process for converting well drill cuttings into raw materials for the production of cement comprising the steps of extracting limestone and clay, crushing and prehomogenizing the extracted materials, raw grinding, and adjusting the composition by adding correctives, producing clinker in rotary kiln and cement grinding, the water based drill cutting sludge is introduced in the crushing and prehomogenizing step and the oil based drill cutting sludge is fed into the rotary kiln.