scholarly journals Influences of medium and temperature on the shear thickening behavior of nano fumed silica colloids

2015 ◽  
Vol 64 (6) ◽  
pp. 068301
Author(s):  
Shan Lei ◽  
Tian Yu ◽  
Meng Yong-Gang ◽  
Zhang Xiang-Jun
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Thickening Behavior ◽  
Silica Colloids

scholarly journals Anisotropic Nanoparticles Contributing to Shear-Thickening Behavior of Fumed Silica Suspensions

ACS Omega ◽  
2017 ◽  
Vol 2 (12) ◽  
pp. 8877-8887 ◽  
Author(s):  
Mahla Zabet ◽  
Kevin Trinh ◽  
Hossein Toghiani ◽  
Thomas E. Lacy ◽  
Charles U. Pittman ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Anisotropic Nanoparticles ◽  
Thickening Behavior ◽  
Silica Suspensions

Effect of Temperature on the Shear-Thickening Behavior of Fumed Silica Suspensions

2015 ◽  
Vol 7 (33) ◽  
pp. 18650-18661 ◽  
Author(s):  
Justin Warren ◽  
Sean Offenberger ◽  
Hossein Toghiani ◽  
Charles U. Pittman ◽  
Thomas E. Lacy ◽  
...  
Keyword(s):  
Fumed Silica ◽  
Shear Thickening ◽  
Effect Of Temperature ◽  
Thickening Behavior ◽  
Silica Suspensions

scholarly journals Shear thickening behavior in dense repulsive and attractive suspensions of hard spheres

Soft Matter ◽  
2021 ◽  
Author(s):  
Vikram Rathee ◽  
Alessandro Monti ◽  
Marco Edoardo Rosti ◽  
Amy Q Shen
Keyword(s):  
Flow Curve ◽  
Hard Spheres ◽  
Shear Thickening ◽  
Colloidal Suspensions ◽  
Thickening Behavior ◽  
The Stability

Shear thickening in stable dense colloidal suspensions is a reversible phenomenon and no hysteresis is observed in the flow curve measurements. However, a reduction in the stability of colloids promotes...

scholarly journals Stability, rheological property and oil-displacement mechanism of a dispersed low-elastic microsphere system for enhanced oil recovery

RSC Advances ◽  
2017 ◽  
Vol 7 (14) ◽  
pp. 8118-8130 ◽  
Author(s):  
Hongbin Yang ◽  
Wanli Kang ◽  
Hairong Wu ◽  
Yang Yu ◽  
Zhou Zhu ◽  
...  
Keyword(s):  
Rheological Property ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Shear Thickening ◽  
Microstructure Change ◽  
Displacement Mechanism ◽  
Oil Displacement ◽  
Internal Forces ◽  
Thickening Behavior

The dispersed low-elastic microsphere system shows shear-thickening behavior because of the microstructure change and the interaction of internal forces.

scholarly journals The Effect of Rheology of Viscoelastic Polymer on Pressure Transient Response in Near-Wellbore Regions

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Jia Zhang ◽  
Shiqing Cheng ◽  
Jie Zhan ◽  
Qi Han
Keyword(s):  
Shear Thickening ◽  
Shear Thinning ◽  
Polymer Flooding ◽  
High Shear ◽  
Pressure Data ◽  
Transient Pressure ◽  
Pressure Derivative ◽  
Shear Rates ◽  
Viscoelastic Polymer ◽  
Thickening Behavior

Viscoelastic polymer solution shows shear thinning behavior at low shear rates and shear thickening behavior at high shear rates in reservoirs. However, models that ignored shear thickening behavior were commonly employed to interpret transient pressure data derived from tested wells in viscoelastic polymer flooding systems; although, viscoelastic polymer solutions show shear thickening behavior in the near-wellbore region due to high shear rate. To better characterize the oilfield with pressure transient analysis in viscoelastic polymer flooding systems, we developed a numerical model that takes into account both shear thinning behavior and shear thickening behavior. A finite volume method was employed to discretize partially differential flow equations in a hybrid grid system including PEBI mesh and Cartesian grid, and the Newton-Raphson method was used to solve the fully implicit nonlinear system. To illustrate the significance of our model, we compared our model with a model that ignores the shear thickening behavior by graphing their solutions on log-log plots. In the flow regime of near-wellbore damage, the pressure derivative computed by our model is distinctly larger than that computed by the model ignoring shear thickening behavior. Furthermore, the effect of shear thickening behavior on pressure derivative differs from that of near-wellbore damage. We then investigated the influence of shear thickening behavior on pressure derivative with different polymer injection rates, injection rates, and permeabilities. The results can provide a benchmark to better estimate near-wellbore damage in viscoelastic polymer flooding systems. Besides, we demonstrated the applicability and accuracy of our model by interpreting transient pressure data from a field case in an oilfield with viscoelastic polymer flooding treatments.

scholarly journals Observation of transition cascades in sheared liquid crystalline polymers

Soft Matter ◽  
2020 ◽  
Vol 16 (16) ◽  
pp. 3891-3901 ◽  
Author(s):  
Ryan J. Fox ◽  
M. Gregory Forest ◽  
Stephen J. Picken ◽  
Theo J. Dingemans
Keyword(s):  
Liquid Crystalline Polymer ◽  
Liquid Crystalline ◽  
Shear Thickening ◽  
Crystalline Polymer ◽  
Liquid Crystalline Polymers ◽  
Crystalline Polymers ◽  
Nematic Director ◽  
Thickening Behavior

We observe anomalous shear thickening behavior of a lyotropic liquid crystalline polymer due to the dynamics of the nematic director.

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