It goes without saying that the drill bit is the heart of any extraction system for oil and gas fossil fuels. As drill strings drill deeper and have become longer over the years, and very often, the medium that the drill encounters subjects the bit to high-stress abrasion, slurry erosion and impact, it has become essential to have better protection solutions.
Metco Joining & Cladding has pioneered and developed new innovative materials used to protect drill bits subject to abrasion, erosion and impact. Our solutions provide excellent protection in these severe environments.
Metco Joining & Cladding application areas to protect PDC and steel drill bits from abrasion, erosion and other wear mechanisms.
(Previously sold as DiaClad™ Enduro™ Elite+)
The development of bi-modal Metco 51019A is based on the concept that the bi-modal carbide distribution improves the carbide packing density while increasing the volume fraction of the hard phase in the deposited layers. Metco 51019A is comprised of small particles for the majority of the hard phase that:
Metco 51019A is comprised of 60 wt.% spherical cast tungsten carbide blended with 40 wt.% self-fluxing matrix alloy.
A: SEM Cross-sectional image of Metco 51019A overlay. B: Optical light microscopy panorama of the cross-section of Metco 51019 deposit. C: SEM panorama cross-section of Metco 51019A deposit.
(Previously sold as DiaClad Xtreme Elite)
Metco 51151B contains spherical tungsten carbide in combination with diamond particles. It is recommended for deposit on the gauges of drill bits and pads of downhole tools, particularly wherever two-body abrasive wear occurs. Deposits of Metco 51151B provide advanced abrasion resistance against severe downhole conditions. Metco 51151B can be used for the manufacture and repair of steel-bodied drill bits as well as the repair of matrix-bodied bits.
A: SEM Cross-sectional image of Metco 51151B overlay. B: Metco 51151B deposited on steel substrate. C: Metco 51151B deposited on the matrix body of a drill bit.
(Previously sold as DiaClad Enduro™ Extend)
Like Metco 51019A, Metco 81022 is a bi-modal hardfacing product, however, it is a composite rod rather than a powder. It incorporates large spherical carbides in a nickel matrix. The rods are designed with a tight packing density for highly erosive applications and moderate abrasive wear. Designed for application using oxy-acetylene welding, use Metco 81022 with areas of high hydraulic flow on the blades of drill bits.
(Previously sold as DiaClad Extreme Elite)
Metco 81586 is similar to Metco 51151B in that it is a diamond-containing product, except it is in composite rod form rather than a hardfacing powder. Metco 81586 is designed such that, when properly applied, the diamond hard phase is evenly distributed throughout the overlay, thus ensuring consistent wear resistance throughout.
A: Metco 81022 deposit SEM Panaroma. B: Metco 81586 composite rods
Metco Joining & Cladding offers additional materials to prevent wear on drill bits. Please contact your sales representative for more information. These include:
Materials E-Guide
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