He finally indicates that external factors such as the tricone bit and the different string bar parts can influence the drilling parameters.
A fuzzy model in tricone bit drilling which was adjusted (based on data obtained by geological and mining exploration drilling), has been elaborated.
In our research, the cutting element is a tricone bit which consists of three cones each one of them with a bit series that can be made of steel for soft rock and tungsten carbide for hard rock (Fig.
Therefore, for an efficient drilling in a rock formation with a determined strength, the weight parameter on the tricone bit, the rotation velocity and the bore hole diameter are adequately combined.
If the pressure continues, the tricone bit could be buried in the rock, besides, an additional pressure is hardly noted in the penetration velocity.
Soft rocks do not need excessive load on the tricone bit, so, the tricone bit rotation velocity must be increased to obtain an adequate drilling velocity.
In the case of the tricone bit perforation the tricone bit revolution per minute (r.
Bit Brokers International has developed a calculator using IADC (International Association of Drilling Contractors) codes to assist drillers in identifying specifications of tricone bits
and the formations in which they are most effective, IADC codes classify roller cone bits by a numbering system.
Besides the Radius rock bit, these housings are designed for use with a number of HDD tools including Mud Motors, tricone bits
, auger boring and monitoring reamers.