Eventos Anais de eventos
ENCIT 2018
Brazilian Congress of Thermal Sciences and Engineering
Computational Simulation of Particulate Flow Aiming the Plugging of Drilling Wells Fractures
Submission Author:
Luiz Eduardo Melo Lima , PR
Co-Authors:
Pedro Leineker Ochoski Machado, Luiz Eduardo Melo Lima, Marcos Vinicius Barbosa
Presenter: Pedro Leineker Ochoski Machado
doi://10.26678/ABCM.ENCIT2018.CIT18-0842
Abstract
In the drilling industry, the lost circulation phenomenon defined as the drilling fluid invasion into the substrate leads to a cost increase and productive time decrease. When fractures are present in the substrate, such a phenomenon can be intensified favoring the fluid loss. One of the methods applied to correct the lost circulation associated with the presence of fractures is to add particulate material to the drilling fluid, aiming the total or partial plugging of the fractures. The objective of this study is to perform a coupling test between DDPM-DEM methods on the fracture plugging problem, which includes velocity measurement of a settling sphere and the collision of a single particle with a static wall, by using of the Ansys/Fluent commercial software for Computational Fluid Dynamics (CFD). An Eulerian approach to the fluid and a Lagrangian one to the particles is applied through the Dense Discrete Phase Model (DDPM), taking accounting the collisions between the particles through the Discrete Element Method (DEM). The numerical results are compared with experimental data available in the literature and major findings are discussed.
Keywords
Computational simulation, Numerical analysis, Fracture plugging
