Rheological Properties of Magnetorheological Fluid with Silica Nanoparticles Stabilizers—A Comparison with Ferrofluid

2013 ◽  
Vol 2 (2) ◽  
pp. 75-84 ◽  
Author(s):  
Leona J. Felicia ◽  
Reji John ◽  
John Philip
Keyword(s):  
Silica Nanoparticles ◽  
Rheological Properties ◽  
Magnetorheological Fluid

scholarly journals Evaluating the potential of surface-modified silica nanoparticles using internal olefin sulfonate for enhanced oil recovery

2019 ◽  
Vol 17 (3) ◽  
pp. 722-733 ◽  
Author(s):  
Afaque Ahmed ◽  
Ismail Mohd Saaid ◽  
Abdelazim Abbas Ahmed ◽  
Rashidah M. Pilus ◽  
Mirza Khurram Baig
Keyword(s):  
Silica Nanoparticles ◽  
Rheological Properties ◽  
Oil Recovery ◽  
Displacement Efficiency ◽  
Shear Rates ◽  
Oil Water ◽  
Core Flood ◽  
The Stability ◽  
Modified Silica Nanoparticles ◽  
Surface Modified

AbstractRecently, nanoparticles have proven to enhance oil recovery on the core-flood scale in challenging high-pressure high-temperature reservoirs. Nanomaterials generally appear to improve oil production through wettability alteration and reduction in interfacial tension between oil and water phases. Besides, they are environmentally friendly and cost-effective enhanced oil recovery techniques. Studying the rheological properties of nanoparticles is critical for field applications. The instability of nanoparticle dispersion due to aggregation is considered as an unfavorable phenomenon in nanofluid flooding while conducting an EOR process. In this study, wettability behavior and rheological properties of surface-treated silica nanoparticles using internal olefins sulfonates (IOS20–24 and IOS19–23), anionic surfactants were investigated. Surface modification effect on the stability of the colloidal solution in porous media and oil recovery was inspected. The rheology of pure and surface-treated silica nanoparticles was investigated using a HPHT rheometer. Morphology and particle size distributions of pure and coated silica nanoparticles were studied using a field emission scanning electron microscope. A series of core-flood runs was conducted to evaluate the oil recovery factor. The coated silica nanoparticles were found to alter rheological properties and exhibited a shear-thinning behavior as the stability of the coated silica nanoparticles could be improved considerably. At low shear rates, the viscosity slightly increases, and the opposite happens at higher shear rates. Furthermore, the surface-modified silica nanoparticles were found to alter the wettability of the aqueous phase into strongly water-wet by changing the contact angle from 80° to 3° measured against glass slides representing sandstone rocks. Oil–water IFT results showed that the surface treatment by surfactant lowered the oil–water IFT by 30%. Also, the viscosity of brine increased from 0.001 to 0.008 Pa s by introducing SiO2 nanoparticles to the aqueous phase for better displacement efficiency during chemical-assisted EOR. The core-flood experiments revealed that the ultimate oil recovery is increased by approximately 13% with a surfactant-coated silica nanofluid flood after the conventional waterflooding that proves the potential of smart nanofluids for enhancing oil recovery. The experimental results imply that the use of surfactant-coated nanoparticles in tertiary oil recovery could facilitate the displacement efficiency, alter the wettability toward more water-wet and avoid viscous fingering for stable flood front and additional oil recovery.

Tuning the structure, thermal stability and rheological properties of liquid crystal phases via the addition of silica nanoparticles

2019 ◽  
Vol 21 (46) ◽  
pp. 25649-25657 ◽  
Author(s):  
Joshua B. Marlow ◽  
Thomas M. McCoy ◽  
Cat Q. Ho ◽  
Liliana de Campo ◽  
Robert Knott ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Liquid Crystal ◽  
Light Microscopy ◽  
Surface Chemistry ◽  
Silica Nanoparticles ◽  
Rheological Properties ◽  
Small Angle ◽  
Angle Scattering ◽  
Liquid Crystal System ◽  
Crystal Phases

The effects of adding silica nanoparticles of varying size and surface chemistry to a liquid crystal system were analysed using small-angle scattering and polarising light microscopy, with varying temperature and applied shear.

Preparation of Magnetorheological Fluid and Study on Its Rheological Properties

2014 ◽  
Vol 13 (02) ◽  
pp. 1450009 ◽  
Author(s):  
Shreedhar Kolekar
Keyword(s):  
Shear Stress ◽  
Shear Rate ◽  
Rheological Properties ◽  
Magnetorheological Fluid ◽  
Magnetic Flux Density ◽  
Iron Loading ◽  
Iron Particles ◽  
Mr Fluid ◽  
Carrier Fluid ◽  
System Type

The present paper focuses on preparation and process of the magnetorheological (MR) fluid whose carrier fluid is silicone-based oil and its additive is the commercial grease with different concentration of iron particles. General properties of MR fluid are discussed and rheological properties like shear rate, shear stress, viscosity of MR fluid can be found by using cone-and-plate sensor system-type rheometer. The result shows that shear stress as a function of magnetic flux density and viscosity does not strictly scale with iron loading.

Rheological properties of magnetorheological fluid prepared by gelatin — carbonyl iron composite particles

2005 ◽  
Vol 12 (4) ◽  
pp. 411-415 ◽  
Author(s):  
Hua-jin Pan ◽  
Hong-jun Huang ◽  
Ling-zhen Zhang ◽  
Jian-ying Qi ◽  
Shao-kun Cao
Keyword(s):  
Rheological Properties ◽  
Carbonyl Iron ◽  
Magnetorheological Fluid ◽  
Composite Particles

Preparation of Magnetorheological Fluid and Evaluation of Rheological Properties

2017 ◽  
Vol 2017 (0) ◽  
pp. OS0403
Author(s):  
Takuyoh HAGI ◽  
Takahiro YANO ◽  
Keiko WATANABE ◽  
Koji FUKUDOME
Keyword(s):  
Rheological Properties ◽  
Magnetorheological Fluid

An experimental study on the effects of temperature and magnetic field strength on the magnetorheological fluid stability and MR effect

Soft Matter ◽  
2015 ◽  
Vol 11 (22) ◽  
pp. 4453-4460 ◽  
Author(s):  
Yahya Rabbani ◽  
Mahshid Ashtiani ◽  
Seyed Hassan Hashemabadi
Keyword(s):  
Magnetic Field ◽  
Experimental Study ◽  
Field Strength ◽  
Rheological Properties ◽  
Carbonyl Iron ◽  
Silicone Oil ◽  
Magnetorheological Fluid ◽  
Effects Of Temperature ◽  
The Stability ◽  
Mr Effect

In this study, the stability and rheological properties of a suspension of carbonyl iron microparticles (CIMs) in silicone oil were investigated within a temperature range of 10 to 85 °C.

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