Page 43 - Vol 33 Issue 34 2021

mining

recognised expertise in the specific wear patterns
of various types of energy recovery boilers,
thereby being able to provide adapted solutions:
▷ Corrosion using the chlorine cycle or
sulphation (ChromeClad XC, FuseClad 53,
LaserClad, X268)
▷ Erosion-corrosion (FuseClad 89)
▷ Abrasion (CDP® wear plates)
▷ Wet and dry corrosion (MeCaCorr 780)
Research has resulted in the development of
a patented undercoat, which improves the
performance of the ChromeClad XC surfacing.
Another avenue of research resulted in the
discovery of the X268 alloy. This blocks all chlorine
cycle corrosion, sulphation and reduces the
fluxing rate. In 2019, Castolin added LaserClad
technology to its range of superheater tube
surfacing solutions.
DrilTec® STC Coating
systems for Oil & Gas
industry
Castolin Eutectic has invested in Research &
Development in many specific wear problems.
This includes areas such as carbide selection,
carbide size, carbide distributions, matrix ▷ Improved gas-atomised powder alloys for the cutters on tri-cone bits and bodies can be
compositions, application procedures and achieved using the Castolin Eutectic Tungsten
process equipment. Some examples of products crack-free wear resistant deposits carbide powder coatings with the Eutalloy
developed specifically for the oil and gas industry process.
by Castolin Eutectic are: Typical coatings for stabilizers for example are
Tungsten inserts, Tungsten rope, and Nickel A hole opener is a tool used to enlarge the
▷ Wear resistant cored wire for hardbanding. borehole during a well drilling operation. Up to
Bronze composite rods with Tungsten. They are
▷ Non-magnetic alloys for use on manufactured from high quality steels like AISI 50” is typical. They can make a hole larger in either
Measurement While Drilling (MWD) tools 4145H or in Non-Magnetic materials. Castolin a single or multiple steps, in one run. Castolin
and instrumentation. Eutectic treats stabilizers with DrilTec® STC 200, Eutectic has a wide range of coatings suitable for
▷ Superior self-fluxing alloy for anti-corrosion 400, 600 and 700. protection of the bodies such as Tungsten rope,
Drill bits of different designs are used for and Nickel Bronze composite rods with Tungsten.
coatings for combined H2S and NaCl
making the bore hole. Drilling in hard formations
environments. typically calls for tri-cone rotary rock bits. Fixed
▷ Powder brazing processes; CastoDyn SF diamond bits are normally used for drilling
Lance and SuperJet Eutalloy. in softer conditions. Maximum protection of

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AFRICAN POWER Mining & Oil Review Vol33 Issue 34 2021 | 43