FIELD: oil and gas industry.
SUBSTANCE: group of inventions relates to the oil and gas industry and can be used during repair and restoration work in oil and gas wells, namely, to eliminate the leakiness of the walls of casing pipes located inside the operating well. When implementing the method, a sealing agent is delivered to the leaky zone of the casing pipe in the form of a perforated pipe, on the surface of which an elastic bag with a prepreg made of a reinforcing material impregnated with a thermosetting hot-curing resin is rigidly fixed. The leaky zone of the pipe is blocked by polymerization of the prepreg with hot steam, which is fed under pressure into the elastic bag.
EFFECT: invention increases reliability, ensures safety, high quality, simplicity in the manufacture and maintenance of the device.
2 cl, 3 dwg
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