9 7/8'' 250.8mm IADC537 Tricone Three Roller Cone Drill Bit

TCI bit adopts high-strength and high-toughness hard alloy teeth, optimizes the design of tooth row number, tooth number, tooth exposure height, and unique alloy tooth shape, giving full play to insert bit's high abrasion resistance and excellent cutting ability. New wear-resistant material is applied to weld the tooth surface of the steel tooth bit, which can maintain the high penetration rate of the steel tooth bit and improve the life of the cutting teeth of the bit.

keyword:

tricone bit three cone bit roller cone bit roller bit tricone roller bit

Category:

Details

Introduction

TCI Tricone Bit is suitable for soft to hard formation such as clay,mudstone,limestone,sandstone,hard shale,dolomite, etc. Tricone bit with high strength toughness of carbide tooth reduces rate of gear broken and with high-performance wear resistant materials improve the wear resistance and service life of the bit.

Product specifications
Diameter	9 7/8''(250.8mm)
Bearing type	Rubber Sealed Bearings
Tooth Type	(Tungsten Carbide inserts)
Circular Type	mud
Thread Connection	6 5/8 API REG
leg protection	Available
Shirttail Protection	Available
Operating parameters
RPM	120-50
WOB	0.45-1.0
Application Formation	Soft to medium formations with low compressive strength, such as medium, soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasive interbeds, etc.

Features

1.Bearing Structure: High precision journal bearing with two thrust faces. Ball locked cone. Hardfaced head bearing surface. Cone bearing inlaid with friction reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.

2.Cutter: premium carbide teeth having increased resistance to breaking and abrasion, maximum increase cutting structure operating life.

3.Gauge protection: more tungsten carbide inserts are placed in the gauge to reduce the wear in the abrasive formation. It can protect gauge and increases the stability and life of the bit.

4.Nozzle：These nozzles are much sturdier and provide greater flow capacity and maximize fluid distribution to the cones.

Technology

1.Seal and Lubrication: The bearing seal is adapting the high quality HNBR O-ring. The best seal compression and the radial seal structure can enhance the seal performance. The compensation system and the high quality bit grease can limit pressure differential, and greatly increase the lubricating reliability.

2.Six-point Gauge Stability: The design delivers near six-point contact with the borehole wall for unequalled bit stability that protects the cutting structure from damaging lateral blows
3.Motor hardfacing: Tungsten carbide particle hardfacing is applied liberally along the shirttail and extended up the leading edge of the bit leg for additional protection in high-speed, directional or abrasive applications

Application

Soft to hard formations with several hard inter-bed,such as clay/chalk/ compressive mudstone/hard gysum/salt/shale/limestone/dolomite.etc

Popular models

Haosu Bit size		IADC CODE	API Connection
Inch mm
3 7/8’’	98.4	115 117 217 517 537 637	2 3/8 API REG
4 1/2’’	114.3	115 117 217 517 537 637	2 3/8 API REG
4 3/4’’	120.7	115 117 217 517 537 637	2 7/8 API REG
5 1/2’’	139.7	115 117 217 517 537 535 637	3 1/2 API REG
5 7/8’’	149	115 117 217 517 537 535 637	3 1/2 API REG
6’’	152	115 117 217 417 517 537 535 617 627 637	3 1/2 API REG
6 1/2’’	165	115 117 217 417 517 537 535 617 627 637	3 1/2 API REG
6 3/4’’	171	115 117 217 417 517 537 535 617 627 637 737	3 1/2 API REG
7 1/2’’	190	115 117 217 417 517 537 535 617 627 637 737	4 1/2 API REG
8 1/2’’	215.9	115 117 217 417 517 537 535 617 627 637 737	4 1/2 API REG
8 3/4’’	222.3	115 117 217 417 517 537 535 617 637 737	4 1/2 API REG
9 5/8’’	244.5	115 117 217 417 517 537 535 617 637 737	6 5/8 API REG
9 7/8’’	250.8	115 117 217 417 517 537 535 617 627 637 737	6 5/8 API REG
11 5/8’’	295.3	115 117 217 417 517 537 617 627 637 737 837	6 5/8 API REG
12 1/4’’	311.1	115 117 217 417 517 537 617 627 637 737 837	6 5/8 API REG
13 5/8’’	346.1	115 117 217 417 517 537 617 627 637 737	6 5/8 API REG
14 3/4’’	374.7	115 117 217 417 517 537 617 627 637 737	7 5/8 API REG
15 1/2’’	393.7	115 117 217 417 517 537 617 627 637 737	7 5/8 API REG
16’’	406.4	115 117 217 417 517 537 617 627 637 737	7 5/8 API REG
17 1/2’’	444.5	115 117 217 237 417 517 537 535 617 627 637	7 5/8 API REG
20’’	508	115 117 217 417 517 537 617 627 637	7 5/8 API REG
22’’	558.8	115 117 217 417 517 537 617 627 637	7 5/8 API REG
24’’	609.6	115 117 217 417 517 537 535 617 627 637	7 5/8 API REG