The seismic activity of the zones through which the pipelines are laid has always caused serious concern. The analysis of emergency situations on pipeline systems caused by an earthquake revealed factors affecting their stability: longitudinal and transverse displacement of the soil, the effect of soil liquefaction, faults resulting in open cracks and shear deformations. To prevent damage to pipelines during seismic impact, it is necessary to take into account the nature of the impact on the pipeline structure, the required level of safety for this seismic impact. Currently, special attention is paid to structural solutions and materials from which pipelines are made. The conducted studies allow us to form an approach to assessing the operability of polyethylene and steel pipelines in earthquake-prone areas, and on the basis of a comparative analysis of their stability, to make recommendations on the use of pipelines under specified conditions.

Keywords: hydrocarbons, analysis, pipeline, reliability, seismic impact, deformation, composite materials