PIPELINE REPAIRING METHOD Russian patent published in 1998 - IPC

Abstract RU 2111102 C1

FIELD: processes for repairing main pipeline, namely pipelines for transporting liquid and gaseous products. SUBSTANCE: method comprises steps of mounting semicouplings onto defective zone; mutually welding semicouplings by lengthwise seams; applying radial load to semicouplings before welding, reducing pipeline by means of semicouplings and unloading them after welding. EFFECT: enhanced carrying capacity of repaired pipeline.

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RU 2 111 102 C1

Authors

Dvurechenskij A.G.

Shkandykov V.A.

Davletshina F.A.

Dates

1998-05-20—Published

1995-07-27—Filed