Summary: Рrecipitation impact on oil gauging in floating roof tanks at oil pumping stations of main oil pipelines was investigated.

Summary:The article explores the effect of the heat of friction of the flow on the change of the temperature conditions of pumping high-viscosity oils through crude oil pipelines.

Keywords: heat of friction of the flow, full heat transfer coefficient , main pipeline,  high-viscosity oil, loss of the head due to friction.

Summary: Had analyzed the mechanism of formation of structure and destruction of the crystal lattice of the high-viscosity  oil in conditions of pumping over main pipelines.

Keywords: high-viscosity oil, thixotropic properties, relaxation.

Abstract. A statistical analysis of data from a space to display the correct data and accurate mapping.
Keywords. Gaps, underground water output.

Summary: Analysis of the probability distribution of landslide processes for natural and technogenic component of factors.

Key words: landslide factor, probability