More than 20 years JSC Plakart specializes in the application of gas-thermal methods for applying special anti-corrosion coatings on metal surfaces, which make it possible to extend the life of process equipment. Hard-alloy protective coatings have essential advantages in comparison with galvanic chromium plating. These advantages allow to reduce cost of production and service and also to increase reliability of work submersible and other types of the equipment applied to oil and gas production.
Extraction, drilling and geological prospecting
A significant advantage of tungsten carbide coatings is the possibility of their application for the repair of any rotors — both with coatings of tungsten carbide and with coatings of galvanic chromium. The technology of repair of screw downhole motors by spraying tungsten carbide coatings is used by all oil service companies. JSC "Plakart" carries out repair of rotors DDM on plant surfaces in Naberezhnye Chelny starting in 2015, certified Site of several oil service companies working in Russia.
Replacement of traditional hardening by bits and soldering of hard-alloy plates by higher on consumer properties the wear-resistant coating used by the leading world manufacturing companies of this equipment.
Replacement of galvanic chrome by a wear-resistant coating of Plakart-0.08, Plakart-01.6 put with the HVOF method.
- more environmentally friendly materials, more resistant to aggressive environments;
- increase of work resource;
- decrease on a third of costs of purchase of a new detail.
Wear-resistant, corrosion-resistant coating WC/Co/Cr by high-speed spraying.
- Increase of working time of a detail in the conditions of circulation of salt-containing and acid washing liquid to 1500-2000 hours.
- Multiple Maintainability of the applied coating with a maximum understatement of the working diameter up to 2.0 mm.
The solid particles of the proppant used in hydraulic fracturing operations are highly abrasive and quickly disable poorly protected pump plungers.
Sprayed carbide coatings are used for the production of plugs and bearings capable of operating in conditions of dry friction. The use of steel plugs and bearings with thin carbide coatings is much more efficient than the use of parts sintered entirely from hard alloy.
Plungers of the pumps which are pumping over chemically active environments are subject to influence of an erosion and corrosion. Production of plungers from special staly expensively also does not provide an acceptable resource.
Hard coatings from metal ceramics - tungsten carbides - guarantee high period of operation of details of the boring equipment in severe conditions of the increased temperatures and hydroabrasive wear.
Rezistivimetr — the electric device with the probe of small length serving for measurement of specific electrical resistance of the liquid filling a well trunk.
The technology of increase in operability of threaded connections at the expense of the strengthening anticorrosion coatings applied on a carving surface of the pump and compressor pipes (PCP) - is at a stage of trial tests
Hardening coating Plakart on the basis of tungsten carbide by high-speed spraying method prevents solid carbide teeth from falling out.
Flushing (pump-compressor) pipes are used for drilling cement stone and washing casing production columns.
Plakart-04.13 coating based on cobalt alloy on a flow straightener, part of the circulation pipe (telemetry equipment) of the drill string.
The method of hardening by laser surfacing provides a metallurgical connection of the deposited wear-resistant material with the base material, which guarantees the absence of chipping compared with traditional methods of hardening. Laser cladding significantly increases the service life of parts.
Using high-speed flame spraying carbide coatings, we apply and restore worn chrome coatings of hydraulic rods.
The engineers of JSC "Plakart" designed and manufactured technological equipment for mounting the wheel in the rotator of the surfacing installation.
To ensure the operability of the repaired locking connecting threads, laser hardening was carried out with a thickness of the hardened layer of 300–450 μm; hardness of the hardening layer 45-55 HRC.
Replacement of galvanic chrome by more eco-friendly materials, more resistant to hostile environment. Increase in a resource of work from 300 to 1000 o'clock.
Hardening the inner surface of the cylinder or restoring the surface of the part to the nominal size, followed by hardening with chromium carbide based material.