Thermal Effect as a Way to Prepare Cuttings for Recovery

Abstract

There were examined patterns of change in the chemical composition of geological formation at thermal effect on them in order to further their recovery; there was examined change in the content of heavy metals and biogenic elements in rocks at a variation of heating and firing parameters. Processing of oil and gas fields drilled rocks at temperatures up to 280 °C allows to remove from them oil without substantial changing the chemical composition and phase transformation of rocks, to increase the content of mobile potassium in clay rocks. It was found that sandstone and silt rocks – waste of 3rd class of hazard- after use of developed technology are ready to recovery and almost non-hazardous (5th class of hazard). Possible their use as artificial soil for land reclamation after the hydrocarbon spills.