Helical flow of a nonlinearly viscoplastic liquid in an annular channel

1985 ◽  
Vol 49 (2) ◽  
pp. 913-917
Author(s):  
Yu. A. Bukhman ◽  
V. N. Zadvornykh ◽  
A. I. Litvinov ◽  
Z. P. Shul'man
Keyword(s):  
Annular Channel ◽  
Helical Flow ◽  
Viscoplastic Liquid

Numerical Results of Non-Newtonian Displacement in Non-Rectilinear Oil Wells

2010 ◽  
Author(s):  
Jaques Savino ◽  
Monica Naccache ◽  
Paulo de Souza Mendes
Keyword(s):  
Numerical Study ◽  
Annular Channel ◽  
Rheological Parameters ◽  
Drilling Fluids ◽  
Displacement Efficiency ◽  
Viscoplastic Liquid ◽  
Cement Pastes ◽  
Flow Displacement ◽  
Fluent Software ◽  
Gravel Packing

An important problem that occurs during drilling, completion and gravel packing operations is the contamination among fluids. The drilling fluids and cement pastes present a non Newtonian (viscoplastic) behavior, while the spacer fluids, used as an attempt to avoid contamination, are Newtonian. The analysis of the flow displacement and of the interface configuration between these fluids helps to determine contamination and the displacement efficiency, and is an important tool for the process optimization. In this work we performed a numerical study to analyze the displacement of one fluid by another through a non-rectilinear, horizontal annular channel, using Fluent Software (Ansys Inc.). The solution of the conservation equations of mass and momentum is obtained via the finite volume technique, and using the volume of fluid method to handle the multi-fluid situation. The effects of rheological parameters on the interface shape and displacement efficiency are investigated. When the viscoplastic liquid pushes the Newtonian one, the displacement efficiency decreases as we increase the velocity and the viscosity of the displaced fluid. Moreover, the fingering undesired phenomenon is observed for higher velocities. On the opposite situation, when the Newtonian fluid pushes the viscoplastic one, the displacement efficiency increases with the velocity and viscosity of the displacer fluid, and the fingering is observed at lower flow rates. The effect of viscosity ratio was also investigated, but it is shown that it does not affect the displacement efficiency.

FLOW IN AN ANNULAR CHANNEL FILLED WITH A POROUS MEDIUM OF VARIABLE PERMEABILITY

2012 ◽  
Vol 15 (10) ◽  
pp. 891-899 ◽  
Author(s):  
Vineet Kumar Verma ◽  
Sunil Datta
Keyword(s):  
Porous Medium ◽  
Annular Channel ◽  
Variable Permeability

EXERGY ANALYSIS OF THE ALUMINA NANOFLUID THROUGH A RIBBED ANNULAR CHANNEL

2019 ◽  
Author(s):  
Arash Shadlaghani ◽  
Nastaran Barhemmati-Rajab ◽  
Weihuan Zhao
Keyword(s):  
Exergy Analysis ◽  
Annular Channel ◽  
Alumina Nanofluid

Local characteristics of the upward bubbly flow in an annular channel

2011 ◽  
Vol 18 (1) ◽  
pp. 37-41 ◽  
Author(s):  
O. N. Kashinsky ◽  
A. S. Kurdyumov ◽  
P. D. Lobanov
Keyword(s):  
Bubbly Flow ◽  
Annular Channel ◽  
Local Characteristics

Three-Dimensional Field-Flow Fractionation Using Helical Flow

1995 ◽  
Vol 30 (11) ◽  
pp. 2251-2258 ◽  
Author(s):  
Arne J. Pearlstein ◽  
Min-Po Shiue
Keyword(s):  
Three Dimensional ◽  
Helical Flow ◽  
Field Flow Fractionation ◽  
Flow Fractionation

Numerical simulation of heat transfer deterioration phenomenon to supercritical water in annular channel

2013 ◽  
Vol 53 ◽  
pp. 170-181 ◽  
Author(s):  
Lei Liu ◽  
Zejun Xiao ◽  
Xiao Yan ◽  
Xiaokang Zeng ◽  
Yanping Huang
Keyword(s):  
Heat Transfer ◽  
Numerical Simulation ◽  
Supercritical Water ◽  
Annular Channel ◽  
Heat Transfer Deterioration

The orientation of helical flow in curved channels

Sedimentology ◽  
2006 ◽  
Vol 53 (2) ◽  
pp. 249-257 ◽  
Author(s):  
RANSOME K. T. CORNEY ◽  
JEFFREY PEAKALL ◽  
DANIEL R. PARSONS ◽  
LIONEL ELLIOTT ◽  
KATHRYN J. AMOS ◽  
...  
Keyword(s):  
Helical Flow ◽  
Curved Channels
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