Optimization of parameters in material selection of tricone drill bit head design

A F Benavides-Serrano,O M León,O A González-Estrada,A S Peña-Sabogal,H G Sánchez-Acevedo

doi:10.1088/1742-6596/1159/1/012018

A F Benavides-Serrano, O M León + Show 3 more

Open Access

https://doi.org/10.1088/1742-6596/1159/1/012018

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Abstract

The tricone drill bit head is one of the main components in petroleum perforation settings because it makes possible to break the soil to establish a flow path between the reservoir and the wellbore. For this reason, it is a component that requires special analysis. This work investigates the optimization process of the parameters used in the material selection for a tricone drill bit. It includes the material selection for the bit body and the inserts. The stresses to which the drill is subjected during drilling are calculated and conditions to be fulfilled are established according to its function.

Highlights

Oil wells drilling is a high-risk activity with a good economic potential
The tricone drill bit is the main component of rotary drilling tools due to its replacement and repair costs
The axes represent the optimisation parameters of the material selection, notice that the selected materials are in the upper part

Summary

Introduction

Oil wells drilling is a high-risk activity with a good economic potential. A correct drilling procedure marks the difference between benefits or economic losses [1]. Among the variables that can affect the perforation are: soil formation [3], types of drill bits needed during drilling [4], bits materials [5,6], drilling speed and bottom temperature [7], weather conditions and pipeline to be installed [8,9]. The direct contact with the rock generates various damage to the surface of the bit during the excavation. According to the observation of drill bits [4], after the perforation, damages appear with different characteristics and mechanisms that can occur in different surfaces of the bit. Observations showed that cracking, cutting, flattening, breaking, rounding and detachment were common modes of damage [4], where many of the bits suffered damage in more than one part simultaneously

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