METHOD OF PIPELINE REPAIRS Russian patent published in 1994 - IPC

Abstract RU 2007656 C1

FIELD: repairs of pipelines. SUBSTANCE: pipeline is repaired by introducing a set of interconnected capsules in sealed envelope into combination sealing solution based on copolymerized mixture with a filler. Said solution is moved through pipeline to leaky point under the effect of handled fluid. First and last capsules are filled with material ensuring zero buoyancy. Intermediate capsules are filled with dry sealing mixture and hardening agent in ampoules. EFFECT: higher efficiency. 4 dwg

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RU 2 007 656 C1

Authors

Turik Vladimir Fedorovich

Dates

1994-02-15—Published

1991-07-22—Filed