METHOD AND DEVICE FOR MOUNTING OIL-AND-GAS PIPE

摘要

construction engineering; performing major repair without replacement of pipes in close-to damage conditions. SUBSTANCE: pipe to be mounted in sealed-up by front fixed blank and repair movable blank. Gas (air) under pressure is pumped into pipe and new pipe is inserted into worn pipe by action of stop of transport facility on movable rear blank. EFFECT: facilitated operation; reduced tractive force. 3 cl, 2 dwg