Simulation Of The Cutting Action Of A
Single PDC Cutter Using DEM
Author(s)
B. Joodi, M. Sarmadivaleh, V. Rasouli & A. Nabipour
Abstract
Optimization of costly drilling operations is essential to reduce the overall costs
of oil and gas extraction. Simulation of these operations can yield a better
selection of parameters for maximum drilling efficiency. One of the most cost
efficient methods to do so is by computer modeling. Because of the complex
nature of the cutting process, no analytical methods can be used for its modeling
and the numerical methods are the only option. FEM and Discrete Element
Method (DEM) are the most commonly used numerical methods for this
purpose. One of the best features of the DEM is that it is very suitable for
discontinuous environment and no special treatment or process is required in
tracking the produced cracks and fragmentation. Also depending on the depth of
cut, it can both simulate ductile or brittle failures. In current study, a 2D
computer model was developed using the particle flow code (PFC2D) to
simulate the cutting action of a single cutter. PFC uses the DEM to model a rock
sample by fine cylinders or disks. The properties of the Berea sandstone were
considered in our modeling. A good match of mechanical properties was
obtained for the rock model by adjusting micro parameters of the contacts
between the constituting balls and the results of the simulation are compared to
laboratory data.
Keywords: single cutter test, numerical simulation, discrete element method,
PFC2D.
Keywords
single cutter test, numerical simulation, discrete element method,
PFC2D.
Related Book
Other papers in this volume
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