FIELD: pipeline engineering.
SUBSTANCE: method comprises making pipeline of pipes one of which being rigid and thick-walled, setting thin-walled flexible pipe into the rigid thick-walled, and welding the pipes over faces. The space between the pipes is filled with inert gas. The outer side of the outer pipe is grinded and is provided with a anticorrosive coating. During the applying the coating both of the pipe ends are plugged.
EFFECT: prolonged service life.
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