METHOD OF MAJOR REPAIR OF OIL AND GAS PIPES Russian patent published in 2003 - IPC

Abstract RU 2215225 C2

FIELD: construction engineering; major repair of pipes. SUBSTANCE: New pipe is laid in pipe to be replaced which is moved at application of vibrations to end of new pipe. As old pipe escapes from ground, it is cut and removed from pit. EFFECT: possibility of repeated use of pipe withdrawn from ground. 3 dwg

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RU 2 215 225 C2

Authors

Sokolovskij V.I.

Dates

2003-10-27—Published

2001-12-06—Filed