Premium
Simulation of slurry/clean fluid boundary dispersion during placement of particulate suspension into a fracture
Author(s) -
Reza Md. Omar,
Nikrityuk Petr,
Eskin Dmitry
Publication year - 2019
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23318
Subject(s) - slurry , mechanics , laminar flow , dispersion (optics) , fracture (geology) , suspension (topology) , computational fluid dynamics , materials science , flow (mathematics) , fluid dynamics , petroleum engineering , geotechnical engineering , geology , physics , composite material , mathematics , homotopy , pure mathematics , optics
The main objective of this work is to understand the major peculiarities of the process of clean fracturing fluid being displaced by a flow of particulate suspension (slurry) in a fracture channel. A number of 2D and 3D numerical simulations (based on an Euler‐Euler type model) of slurry flows in channels of complex geometry are carried out. The performance of the model is validated against experimental data by Gillies et al.[1][R. G. Gillies, 1999] Euler‐Euler simulations of a laminar slurry flow in a horizontal pipeline showed good agreement between computed and measured particle concentration distributions across a pipe. Numerical studies of slurry flows in 2D and 3D channels show the formation of an M‐shape profile of the solid phase across a channel at the initial fracture section. Our computations demonstrate the rapid growth of a dispersion zone separating a slurry and a clean fluid. It is shown that the dispersion zone is shorter in a tortuous channel than in a straight one. The computations illustrate a reduction in the dispersion zone length with an increase in the fracturing fluid viscosity. The results obtained show the importance of taking into account the previously ignored process of slurry/clean fluid boundary dispersion in prospective hydraulic fracturing simulators.