FIELD: physical-chemical protection against corrosion; oil and gas producing industry; repair of multi-way switch of group well tester.
SUBSTANCE: working chamber is disconnected from fluid medium and its surface is cleaned, degreased and dried. Prior to application of protective coat, measurements are made on surface and number of protective coats is determined. Proposed method makes it possible to restore and to repair protective coats of equipment working in aggressive medium under field conditions.
EFFECT: enhanced efficiency and reliability.
1 ex
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