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Improper combination of drilling parameters can result in inefficient energy consumption which will be released in the form of heat and vibration. These can lead to numerous issues such as high wear rate of drill bit, reduce drilling accuracy through bit whirling and fatigue of drill string. To address these issues, this study aimed to determine the most significant parameters range for Weight on Bit (WOB) and rotary speed (RPM) in achieving optimal Rate of Penetration (ROP) through Discrete Element Modelling (DEM) analysis. The study utilized Mechanical Specific Energy (MSE) concept and DEM simulations to analyze the drilling performance of Polycrystalline Diamond Compact (PDC) drill bit. The Hertz-Mindlin Model was used to describe particle-particle and particle-equipment interactions whereas Bonding-V2 Model was used to describe the strength of bond between each particle including the Uniaxial Compressive Strength (UCS). The study found that the MSE was lowest at WOB of 60kN and RPM of 100 RPM, indicating the most efficient drilling operation for sandstone.

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Optimization of Penetration Rate for Polycrystalline Diamond Compact Drill Bit Design using Discrete Element Modelling

  • 会议论文

  • 发表日期：

    2026年

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  • Abdul Rafeq Saleman,
  • Ahmad Majdi Abdul Rani,
  • Sabri Nawi Samba Zawawi Samba,
  • Fudhail Abdul Munir

摘要

Improper combination of drilling parameters can result in inefficient energy consumption which will be released in the form of heat and vibration. These can lead to numerous issues such as high wear rate of drill bit, reduce drilling accuracy through bit whirling and fatigue of drill string. To address these issues, this study aimed to determine the most significant parameters range for Weight on Bit (WOB) and rotary speed (RPM) in achieving optimal Rate of Penetration (ROP) through Discrete Element Modelling (DEM) analysis. The study utilized Mechanical Specific Energy (MSE) concept and DEM simulations to analyze the drilling performance of Polycrystalline Diamond Compact (PDC) drill bit. The Hertz-Mindlin Model was used to describe particle-particle and particle-equipment interactions whereas Bonding-V2 Model was used to describe the strength of bond between each particle including the Uniaxial Compressive Strength (UCS). The study found that the MSE was lowest at WOB of 60kN and RPM of 100 RPM, indicating the most efficient drilling operation for sandstone.