Rock Drilling Bit 12-1/4 Inch Tricone Drill Bit IADC With Reg 6-5/8 API Connection

Rock Drilling Bit 12-1/4 Inch Tricone Drill Bit IADC With Reg 6-5/8 API Connection

A tricone bit is an essential component of the bottom hole assembly used in drilling operations. Tricone Bit mechanical drill bit utilizes rotational motion and the mechanical friction generated by its teeth to remove the rock surface during drilling. Its purpose is to harness the energy from the rotating drill string and the mud supply, effectively applying this force to facilitate well deepening.

How the know a tricone bit quality ?

• Tircone Bit IADC code passport
• Tricone Bit TCI & Steel tooth options
• Tricone Bit Additional tungsten carbide inserts on heel rows
• Tricone bit  Tungsten carbide coating on cone bodies
• Tricone Bit  Diamond coated tungsten carbide inserts on the gauge of the cones
• Tricone Bit Tungsten carbide inserts on the shirttail of the legs
• Tricone Bit  Additional central nozzle for cleaning cones

The tricone Bit  feature is that they come with their own passport as below :

• The specification of the cones
• The quality stamp signed by the person who made and checked the bit
• The recommended drilling parameters to get the best performance out of the bit:
• Bit weight
• Rotation speed
• Flushing volume

Applications

• Geotechnical investigation
• Mining exploration & Probing
• Geotechnical instrumentation
• Geophysics

Which type of tricone bit  you choose depends on the geology you are drilling in and the diameters of the borehole you are drilling. The International Association of Drilling Contractors (IADC) have developed an easy use step system to choose the right tricone for your geology with additional features such as bit protection for longer production life.

 
 
Bearing Types
There are primarily three types of bearing designs used in tricone  drilling bits:
 
• STANDARD OPEN BEARING ROLLER BIT:
On these bits the cones will spin freely. This type of bit has a front row of ball bearings and a back row of roller bearings.
• SEALED BEARING ROLLERS BITS
These bits have an O-Ring seal with a grease reservoir for bearing cooling. The seals acts as a barrier against mud and cuttings to protect the bearings
• JOURNAL BEARING ROLLER BITS
These bits are strictly oil/grease cooled with nose bearings, O-Ring seal and a race for maximum performance.
 
 
IADC Codes
 
IADC Codes make it easier to describe what kind of rock bit is required.
The first three digits classify the bit according to the formation it is designed to drill and the bearing/seal design used.
1, 2, and 3 designate STEEL TOOTH BITS with 1 for soft, 2 for medium and 3 for hard formations.
4, 5, 6, 7 and 8 designate TUNGSTEN CARBIDE INSERT BITS for varying formation hardness with 4 being the softest and 8 the hardest