DeRun
Energy provides integral straight blade stabilizer, integral spiral blade
stabilizer, replaceable sleeve stabilizer, non-rotary stabilizer, diameter changeable stabilizer
etc. There are Five kinds of hard facing(HF1000,HF2000,HF3000,HF4000,HF5000).
All above products are manufactured according to API Spec 7 standard.
The working surface has five kinds of hard
facing:
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HF1000
Crushed tungsten carbide held in a nickel
bronze matrix. The 3mm grain size ensures greater concentration of carbide
which is ideal for drilling soft formation.
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HF2000
Trapezoidal tungsten carbide inserts held in
a sintered carbide nickel bronze matrix. This will give a great depth of
carbide coverage-ideal for high deviation drilling in abrasive formations.
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HF3000
Tungsten carbide inserts sets in a powder
spray deposit ideal for abrasive formations.97% bonding guaranteed, certified
by ultrasonic reports. This kind is recommended for non-magnetic stabilizer.
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HF4000
Tungsten carbide inserts (button type), The
inserts have been developed to allow cold insertion and maintain close fit. A
great concentration of inserts on the bottom third of the blade and leading
edge will increase surface contact to reduce wear in highly abrasive
formations.
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HF5000
This oxy-acetylene process applies tough
molten carbide particles of varying sizes held in a nickel chrome matrix which
provided excellent bonding properties and greater surface wear characteristics
are achieved. Surface hardness levels over 40HRC.Ideal for geo-thermal
applications over 350°C.
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