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9 7/8"(250.8mm) IADC537 TCI Tricone Roller Bits for Well Drilling

Summary information
9 7/8 inches TCI Tricone Bit
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Description

API Certified factory of Tricone Bits and PDC bits
API is American Petroleum Institute, it is Authoritative in the world.
All products are produced in lines of API specifications.

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SOLIDKEY  
 
 
Specifications  
 
Diameter  9 7/8"(250.8mm)
Bearing Type  Elastomer sealed bearing
Tooth Type  TCI(Tungsten Carbide Inserts)
Circulation Type  Mud fluid
Thread Connection  6 5/8 reg pin
Gauge Protection  Available
Shirttail Protection  Available
Operating Parameters  
 
RPM(r/min) 120-50
WOB(KN) 113-250
Formations Medium formations,such as medium shale,limestone, medium sandstone,medium formation with harder and abrasive interbeds,etc.

9 7/8" is 250mm in diameter, the thread connection  is 6 5/8 reg pin according to API specification.

IADC537 means that tricone roller bit is suitable for drilling medium hardness rocks like limestone, shale, gypsum, etc. The bearing is elastomer sealed to increase working life.

Tungsten carbide inserts(TCI) is very hard alloy to drilling hard rocks, the heel of cones and arm-back are full inserted with Tungsten Carbide teeth.

It is a common size in mining field, to drill blast hole. In mining drilling, first number for IADC code are usually 6,7,8,and the third number are usually 2 and 5. According to IADC specifications for tricone bit,"2" means standard open bearing roller bit,and "5" means sealed roller bearing bit with gauge protection.

In some countries, 9 7/8"(250.8mm) is often used to drill water well and geothermal well. Drill rig is circulated by mud fluid,instead of compressing air.

Therefore, for different applications, we should choose the right tricone roller bits.

 
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