6 1/2''165mm IADC 637 hard drilling conical roller tricone bit specs

Overview  of  6 1/2'' 637 Tricone Rock Bits

Tricone rock bit  6 1/2 inches IADC 637 with conical spherical compact,drilled for Hard formations with high compressive strength, such as sandstone, limestone, dolomite ,hard gypsum, marble, etc.

Applications of Tricone Rock Bits

Tricone bits are used in a wide range of applications, including:

• Water Well Drilling: Tricone bits are also used for drilling water wells, particularly in areas with hard rock formations that require durable and efficient drilling tools.

• Mining and Quarrying: In the mining and quarrying industries, tricone bits are used for drilling blast holes and exploration wells in hard rock formations.

• Oil and Gas Drilling: Tricone bits are commonly used in the oil and gas industry for drilling through various formations, from soft sedimentary rocks to hard igneous rocks.
  

• Geothermal Drilling: Tricone bits are used in geothermal drilling projects to access hot rock formations and extract geothermal energy.

HENGJI BIT  SPEC		IADC CODE 637
Diameter	6 1/2"(165.1mm)
Tooth Type	TCI
Bearing Type	Elastomer sealed bearing
Circulation Type	Mud fluid
Thread Connection	3 1/2 API REG PIN
Nozzle	three jet nozzles
Gauge Protection	Available
Shirttail Protection	Available
Operating Parameters
RPM(r/min)	80-40
WOB(KN)	0.5-1.2
Formations	Hard formations
Application	water well drilling,oil &gas well drilling ,HDD,exploration,geothermal well drilling,drilling projects,etc

Structure of 6 1/2'' 637 Tricone Drilling Bits

Cutting Structure

Using a new formula of tungsten carbide inserts and insertion techniques, the mechanical properties of the cutting teeth are reinforced for better cutting performance.

Bearing Structure

The bearing structure of a tricone bit is critical for ensuring the bit's durability and high speed operation. It includes:

Hardfaced Head Bearing Surface: This provides a wear-resistant surface that can withstand the high pressures and friction encountered during drilling.

High Precision Journal Bearing: With two thrust faces, this design allows for precise rotation and load distribution.

Ball Locked Cone: This secures the cone to the bearing pin, ensuring stability during drilling.

Cone Bearing: Inlaid with a friction-reducing alloy and then silver-plated, this enhances the bearing's resistance to abrasion and seizure, makes  it suitable for high rotary speeds.

Gauge Structure

The gauge structure is designed to protect and maintain the borehole size