METHOD OF DRILLING WASTE DISPOSAL Russian patent published in 2020 - IPC B09B3/00 B09C1/08 

FIELD: waste processing and disposal.

SUBSTANCE: invention relates to methods of handling wastes from production of oil industry, in particular recycling drilling wastes formed during construction of oil wells with obtaining soil intended for excavation: pouring of road slopes and dumps, filling cavities of reclaimed sludge pits and temporary sludge accumulators of cluster sites, including at stages of technical reclamation. Method for disposal of drilling waste includes adding to drilling wastes dolomite flour, diatomite and sand, subsequent mechanical mixing to obtain soil corresponding to V class of hazard for environment, at following content of components, volume fractions, %: drilling wastes 55, dolomite powder 10, diatomite 10, sand 25.

EFFECT: technical result is disposal of drilling wastes with obtaining soil with improved physical, physical and chemical properties, reduced oil products to concentration of not more than 5 g/kg and heavy metals to the level of MPC in soil.

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