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Salinity of drilling waste is a serious problem, and it is one of the biggest problems at the stage of selecting drilling waste utilization method. The high salinity of drilling waste results from a few causes, i.e. the use of drilling fluids (inorganic salts are commonly used as drilling fluids components) in the process of drilling, drilling in saline formations and also brine inflowing to the well. The investigations carried out on drilling waste has shown that their soluble salts of alkali metals in the form o...