FIELD: gas industry. SUBSTANCE: gas is transported by means of pipeline type "pipe in pipe" along intertubular channel and by internal pipeline where pressure exceeds that in intertubular channel by value of intertubular channel pressure. Pressure in internal pipeline and in intertubular channel is maintained and controlled by a compressor, and gas is forced into the internal pipe from inlet one, gas pressure in which equals that in intertubular channel and which communicates with the latter. Gas pressure in intertubular channel and in internal pipe is checked and adjusted by changing the modes of the compressor operation. EFFECT: enhanced efficiency and reliability. 1 dwg
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