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The geological environment is essentially heterogeneous, consists of blocks, layers, lenses, joints of various shapes and sizes, lying horizontally, obliquely or in the form of complex folds in the earth's crust, and it is characterized by great complexity and heterogeneity. The shear in the direction of the joint is one of the main reasons for the destruction of the underground tunnels and mine workings, wellbores. Understanding of shear behavior allows optimal design of mining facilities and prediction of the ge...

The purpose of this paper is to outline the findings of the study into the quality of water used for oil-field water injection operations to support the reservoir pressure. Comparative assessment of injection water quality at cluster pump stations has been carried out by means of a particle size distribution analyzer. The device was used to measure the particle size distribution in wastewater. Water samples from cluster pump stations located in the area producing oil from the Romashkinskoye oil field, Devonian for...