The Effects of PDC Cutter Geometries to the Drilling Dynamics in Various Geothermal Rocks: A Comprehensive Study Using Advanced Drilling Dynamics Simulation

Abstract Polycrystalline Diamond Compact (PDC) bit has been used widely in drilling operations since a long time ago. However, the utilization of this Indonesia’s geothermal just recently started 2016, thanks to rapid development PDC cutter grades and shapes last decade. Prior that, operation relied on Tungsten Carbide Insert (TCI) drill hard formations. The crushing action insert is very durable remove rocks. seal bearing limit life these types, causing multiple runs section. offers longer periods if cutters are still good condition. nature formation usually consists rocks with fractures that can reduce durability conventional flat cutters. To overcome weakness optimize operation,. Instead having surface, new have different 3D shapes. Each benefits: improving strength against impact, increasing aggressiveness depth cut, or enhancing wear resistance towards abrasive Advance dynamics simulation helps analyze which types will be more suitable for characteristics. based 4D Finite Element Analysis, models interaction between cutting structures drilled formation. result shows dynamic response each rocks, including generated vibration, cutter’s cut distribution face, potential pattern bit. This paper then discusses type beneficial operation.