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What are the structural characteristics of the tricone drill bit

 Toothed Wheel Bit, also known as Toothed Wheel Bit or Triple Toothed Wheel Bit, is a rotary drilling tool that is widely used in the fields of oil and natural gas exploration and extraction. Its main feature lies in the use of tapered tines as cutting elements to break rock by rotation and pressure. The following are the main structural features of the tooth wheel drill bit:


1. Tooth wheel (Cone):

Quantity: The most common is the three-tooth wheel drill bit, there are also single, double and multi-tooth wheel drill bits, but the application is less. Three-tooth wheel drill is well balanced and has high drilling efficiency.
Shape: The tooth wheel is tapered and its surface is covered with cutting teeth. The tapered design allows the tines to roll and break rock as they rotate.
Bearing: The tooth wheel is mounted on the bit body through the bearing, the type and quality of the bearing directly affects the service life of the bit. Common bearing types are:
Friction Bearing: Simple structure, low cost, but limited bearing capacity, suitable for low speed, low load drilling.
Roller Bearing: This roller bearing has a high load carrying capacity and long life and is suitable for high-speed and high load drilling.
Sealed Bearing: A sealed device is added on the basis of a rolling bearing to prevent impurities in drilling fluid from entering into the bearing, which improves the life of the bearing and is suitable for harsh drilling environment.

Tooth shape: The cutting teeth on the surface of the tooth wheel are the main tool for breaking rock. The design of the teeth needs to be selected according to the lithology of the formation:
Milled Tooth: Processed by milling, the teeth are larger and sharper and are suitable for soft to medium-hard formations.
Inserted teeth (Insert): Carbide teeth (usually tungsten carbide) are inlaid on the body of the tooth wheel, have good wear resistance, and are suitable for medium-hard to hard strata. Inserted teeth can be divided into:
Long Insert: Long and pointed teeth, suitable for softer ground.
Short Insert: short, blunt teeth, suitable for harder formations.
Button Insert/Tungsten Carbide Insert (TCI): The teeth are spherical or hemispherical in shape, have high compressive strength, and are suitable for very hard formations.

Summary:

The structural characteristics of the tine bit enable it to effectively break various types of rock. Choosing the right tooth wheel drill bit requires comprehensive consideration of factors such as formation lithology, drilling parameters and cost. If you need to buy the right water well drilling rig, click the link below to contact our professional team.

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