Tricone bit is an important drilling tools for oil drilling, its work performance will directly affect the quality of drilling, drilling efficiency and drilling costs. Oil drilling and geological drilling is the most used or cone bit. The cone bit has the effect of rocking, crushing and shearing the formation rock in rotation, so the cone bit can be adapted to soft, medium and hard layers. Especially in the jet cone bit and long nozzle after the emergence of cone bit, the cone drill bit drilling speed greatly improved, is the history of the development of cone bit a major revolution. The cone bit can be divided into teeth (tooth) by tooth type, tooth (bit) (tooth set inlaid with carbide teeth) cone bit; according to the number of teeth can be divided into single cone, double , Three-cone and multi-cone bit. At home and abroad use the most, the most common is the Tricone bit.
:1.Select the right most suitable products.
2. According to the rock types, choosing the face type, button tooth type.
3. According to the different purpose,. choosing the different body type
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Basical Specification |
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Size of Rock Bit |
12 1/4" |
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311.1 mm |
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Bit Type |
Steel Teeth Tricone Bit/ Milled teeth Tricone Bit |
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Thread Connection |
6 5/8 API REG PIN |
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IADC Code |
IADC 217 |
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Bearing Type |
Journal Sealed Roller Bearing |
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Bearing Seal |
Rubber Seal |
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Heel Protection |
Available |
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Shirttail Protection |
Available |
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Circulation Type |
Mud Circulation |
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Drilling Condition |
Rotary drilling,high temp drilling,deep drilling,motor drilling |
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Nozzles |
Central Jet Hole |
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Operating Parameters |
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WOB (Weight On Bit) |
20,897-59,321 lbs |
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93-264KN |
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RPM(r/min) |
60~150 |
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Formation |
Soft to medium formations with high compressive strength, such as mudstone,medium-soft shale,hard gypsum,medium-soft limestone,medium soft sandstone,soft formations with harder interbed ,etc. |