FIELD: oil producing industry; pumping equipment.
SUBSTANCE: invention can be used at operation of oil wells and can be used repair of pump coming to restoration of clearance between cylinder and plunger. For this purpose sections on cylinder surface are determined on which thickness of wall should be restored, adjustable dielectric gaskets are fitted inside cylinder to separate section to be restored from the rest of cylinder surface and then thickness of wall of each section is restored with metal using, for instance, electrochemical deposition of chromium. Proposed method permits restoration of pumps out of order and improves characteristics of operating pump by decreasing clearance between cylinder and plunger to bring them to higher groups of fit allowance.
EFFECT: provision of reconditioning of pumps.
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