The article deals with the design of trenchless technologies for the restoration of pipelines in oil and gas engineering, taking into account the state of existing pipelines, the need for installing polyethylene pipes, and their strength and hydraulic parameters. Taking into account the high cost and timing of pipeline construction by the open method, the annual rate of aging of pipeline systems, the issue of construction, reconstruction and replacement of emergency pipelines can be solved only by using trenchless technologies, which will reduce direct and indirect financial and time costs. The term “trenchless technologies” can be defined as any method of trenchless installation and restoration of a pipeline with a description of the regulated sequence of operations performed using special equipment, instruments, materials, and human resources. Along with efficiency and cost-effectiveness, the trenchless technologies do not to deteriorate the existing environmental situation