12.5in Tricone Rock drill bit for oil well drilling
Quick Detail
- Place of Origin:China
- Minimum order:1
Specifications
12.5in Tricone Rock drill bit for oil well drilling
Why tricone drill bit are most widely used
Due to impact, crushing and shearing rock breaking when roller cone rotates, the contact area between cone and bottom hole is small, the specific pressure is high, the working torque is small, and the working blade has a large total length and can be suitable for rock of various kinds.
what is the working principle of tricone drill bit
Tricone bits rely on the impact of the cone on the formation, crushing and sliding shear to crush the rock.
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Basical Specification
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Size of tricone bit
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17 1/2\" inch (444.5 mm)
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Thread Connection
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7 5/8\" API reg pin
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IADC CODE
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537G
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Bearing type
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rubber /metal o-ring journal bearing
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Operating Parameters
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WOB (Weight On Bit)
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0.35~1.05 KN/mm (bit Dia.)
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Rotary speed
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110~40r/min / 220~40 r/min
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Make up torque
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KN.M
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Formation
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Medium formation with high compressive strength ,and high drillability ,such as mudstone,gypsum,salt,soft limestone,etc.
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