METHOD FOR REPAIRING A PIPELINE SECTION Russian patent published in 2022 - IPC F16L1/28 

FIELD: pipelines repair.

SUBSTANCE: invention is intended to repair a pipeline section. The substance of the invention lies in the fact that the soil is opened to provide access to the pipeline pipe section, the pipeline is disconnected and purged with air, the pipeline case is disconnected, the defective pipeline section is disconnected, the pipeline section is checked for tightness and the pipeline section is connected, while the soil is opened from the side of the pipe inlet of the pipeline into the gas well, then, after purging the pipeline, the case is disconnected from the outer wall of the gas well, a section of the pipeline pipe is cut off at a given distance from the outer wall of the gas well, after disconnecting the defective section of the pipeline with a flange and a case from the gas well, the defective section of the pipe is measured, after which a replacement pipe section with a flange and a case made to the specified dimensions is rigidly fixed to the valve located in the gas well.

EFFECT: providing the possibility of repairing the pipeline section passing through the gas well, without the need to remove the floor slab and part of the roadway.

1 cl, 1 dwg