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

9 7/8 inches TCI Tricone Bit

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tricone bit rock drilling bit well drilling bit 250mm TCI tricone rock bit for hard rock drill for oil and gas drilling

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Introduce

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.

Regular Models


12 1/4"(311.1mm) IADC637G	17 1/2" (444.5mm) IADC537G	12 1/4"(311.1mm) IADC137G	17 1/2"(444.5mm) IADC135G

8 1/2"(215.9mm) PDC Bit	12 1/4"(311.1mm) PDC Bit	Bi Center Bit	PDC Reaming Bits

24" Hole Opener	28" Hole Opener	14" PDC Reamer	18" PDC Reamer

Tricone Bit Thirds	Replaceable Roller Cone Bits	Block Roller Bits	Core Barrel