Study of the Cutter Design of PDC Drill Bits on Effect of Back Rake Angle and Size of the Cutter on Wear Rate

• Main Author: Fauzi, Mohamad Azrin
• Format: Final Year Project
• Language: English
• Published: IRC 2015
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://utpedia.utp.edu.my/16173/1/FYP%202%20Dissertation%20%28Mohamad%20Azrin_16687%29%20rev11.pdf; http://utpedia.utp.edu.my/16173/
• Institution: Universiti Teknologi Petronas

In the oil and gas industry, drilling is one of the most important aspects due to the economics and high demand. Reduction in drilling time is required to minimize the cost of operations. This study focuses on the Polycrystalline Diamond Compact (PDC) drill bit which is categorized as fixed cutter of drilling bit. Problem such as wear and tear of PDC cutter is one of the main factors in drilling process failure and this would affect the rate of penetration. Thus, an intensive study in drill bit design would save a lot of money if the efficiency of drill bit can be improved. The objective of this project is to finding optimal design of PDC cutter and study the effect of design improvement to the wear rate. Derive an analytical model of PDC Cutter. Developing simulation modelling the PDC cutter and to determine the optimal characteristic of PDC cutter. The analytical model will be developed to collect the required results. Author will proceed with the simulation modeling using Autodesk Inventor for 3D drawing, which is based on the results of the analytical model. The modeling varies based on the back rake angle and the size of cutter. Subsequently, the experiment modeling will be conducted using ANSYS Explicit Dynamic by certain parameters and constant for the drilling simulation based on the cutter parameters. After that, the result from the experiment will be analyzed, in which the optimal characteristic of the cutter is obtained.