Thermal Spray coatings help in reducing wear & corrosion, as a result increasing service life and productivity of downhole tool components.

Some Typical Coatings are:

• Tungsten Carbide
• Chrome Carbide
• Monel
• Nickel Chrome
• Metal & Alloys

Above mentioned coatings are either sprayed on newly manufactured components or they can also be applied on old and worn out components after the reconditioning procedure. This is done by spraying Metals, Alloys and Tungsten Carbide by HVOF process.

Downhole tools are very critical components and hence it is very necessary that they donot fail during operation. Coatings sprayed by HVOF process, ensures highly wear resistant coatings that not only increases component efficiency but also ensures longer tool life.

Replacement for Hard Chrome Plating:

Carbide Coatings obtained by HVOF process has now become a permanent replacement for hazardous Hard Chrome Plating.

Many research studies have been conducted and they have successfully proved that HVOF coatings are more superior to Hard Chrome plating. Apart from the environmental hazard that Hard Chrome plating poses, A few advantages of HVOF coatings over Hard Chrome plating are as follows:

• HVOF Coatings more abrasive resistant than Hard Chrome plating
• They give better fatigue strength to the component
• They provide equally good corrosion protection
• The process is comparatively faster and more efficient
• A wide range of coatings are available in HVOF process
• It supports a large variety of substrates (both, Metal & Non-metal)

Typical Downhole equipments that are coated:

• Spline Mandrel
• Knocker Mandrel
• Kelly Mandrel
• Mandrel Extensions
• Wash pipe
• Knocker Housing
• Hydraulic Housing
• Neutralizer Cylinder