METHOD OF SEALING UP DAMAGED PIPE LINE Russian patent published in 1997 - IPC

Abstract RU 2099628 C1

FIELD: restoration of tightness of damaged pipe line; oil and gas industry. SUBSTANCE: detachable coupling embracing damaged pipe is fitted on it. Detachable coupling has two groups of sealing clamping members: one group of sealing members is crimped radially and other group is crimped axially; cavity between these groups is filled with substance whose viscosity exceeds that of medium running inside pipe line. EFFECT: enhanced efficiency. 1 dwg

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RU 2 099 628 C1

Authors

Kljachkin Boris Borisovich

Dates

1997-12-20—Published

1996-01-23—Filed