Stability and rheological properties of nanofluids stabilized by SiO2 nanoparticles and SiO2-TiO2 nanocomposites for oilfield applications

Kumar, Ravi Shankar; Sharma, Tushar

doi:10.1016/j.colsurfa.2017.12.028

Cited by 112 publications

(65 citation statements)

References 51 publications

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“…Using a magnetic stirrer, the sample was first stirred for 1.5 h, followed by sonication for 8 h. Sonication is done noncontinuously so as to provide enough cooling time. Ultraviolet–visible (UV–Vis) spectrophotometer 39 is used for the dispersion study or stability analysis of the synthesized nanolubricant.

italicmass % = \frac{m_{p}}{m_{o} + m_{p}} \times 100 .

…”

Section: Methodsmentioning

confidence: 99%

The effect of silica nanoparticle on thermal, chemical, corrosive, and the nature‐friendly properties of refrigerant compressor lubricants—A comparative study

Narayanasarma

Kuzhiveli

2020

Asia-Pacific J Chem Eng

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Polyolester (POE) oil and mineral (Min) oil are widely used in household refrigerators as compressors lubricants in India. An experimental calculation on the thermal, chemical, corrosion, and nature-friendly properties of POE oil and Min oil suspended with silica nanoparticles is conducted for confirming its practicality to adopt in refrigeration compressors as nanolubricant. No surfactants were used for synthesizing the nanolubricants. The mass fractions from 0.01% to 0.2% and temperatures from 25 C to 85 C are considered. The thermal conductivity and fire point increased as SiO 2 mass proportions increased. The pour and cloud points decreased, and in the corrosive nature, apparently little effect was observed by adding SiO 2 nanoparticles. The total acid number (TAN) and saponification number increased with the increase in SiO 2 nanoparticle concentration. All the synthesized nanolubricants were biodegradable and a little toxic. Refrigerant compressors with long life, with smooth and safe working are expected using POE oil and Min oil with up to 0.2% SiO 2 (without surfactants) because of augmented thermal properties and less influenced corrosive, chemical, and eco-friendly properties.

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italicmass % = \frac{m_{p}}{m_{o} + m_{p}} \times 100 .

…”

Section: Methodsmentioning

confidence: 99%

The effect of silica nanoparticle on thermal, chemical, corrosive, and the nature‐friendly properties of refrigerant compressor lubricants—A comparative study

Narayanasarma

Kuzhiveli

2020

Asia-Pacific J Chem Eng

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“…For this study, it is observed that all the oil samples show a rise in the curve where they are as unfolded states. This is due to the presence of electrostatic potential between particles, which is typically the result of Van der Waal forces in oil 27 . MWCNT consists of cylindrical shape which supposed to www.nature.com/scientificreports/ have stronger attraction between neighbor MWCNT and stronger tendency to form aggregation 28 .…”

Section: Small Angle X-ray Scatteringmentioning

confidence: 99%

Systematical study of multi-walled carbon nanotube nanofluids based disposed transformer oil

Suhaimi

Din

Ishak

et al. 2020

Sci Rep

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In this paper, the electrical, dielectric, Raman and small angle X-ray scattering (SAXS) structure behavior of disposed transformer oil in the presence of multi-walled carbon nanotube (MWCNT) were systematically tested to verify their versatility for preparing better alternative transformer oil in future. MWCNT nanofluids are prepared using a two-step method with concentrations ranging from 0.00 to 0.02 g/L. The test results reveal that 0.005 g/L concentration possesses the most optimum performance based on the electrical (AC breakdown and lightning impulse) and dielectric (permittivity, dissipation factor and resistivity) behavior. According to the trend of AC breakdown strength and lightning impulse pattern, there were 212.58% and 40.01% enhancement indicated for 0.005 g/L concentration compared to the disposed transformer oil. The presence of MWCNT also yielding to the decrement of dissipation factor, increased on permittivity and resistivity behavior of disposed transformer oil which reflected to the performance of electrical properties. Furthermore, it is found that these features correlated to the structural properties as systematically verify by Raman and SAXS analysis study.

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“…On the industrial scale, xanthan solutions, as well as hydrolyzed polyacrylamides, suffer from chain degradation due to high ionic strength, bacterial attack, and thermal degradation under harsh reservoir environment (Li et al, 2018). Consequently, amendment to their rheological response conducted by mixing with inorganic silica nanoparticles (Maurya et al, 2017) or grafting with vinylsilane derivative to boost the shearing resistance, mechanical stress, robust thermal and salinity response, as well as toughness and anti-polyelectrolyte properties (Kumar and Sharma, 2018), through the formation of network assembly between nanoparticles and polymer architecture (Bera and Belhaj, 2016). Moreover, hybridization of the polymer backbone with thermosensitive pendant groups enhance polymeric chains stability (Liu et al, 2017;Pu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Assessment of xanthan gum and xanthan-g-silica derivatives as chemical flooding agents and rock wettability modifiers

Soliman

El-hoshoudy

Attia

2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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Currently, biomolecules flooding in the underground reservoirs acquires sustainable interest owing to their availability and eco-friendly properties. The current study reported chemical displacement by xanthan gum as well as xanthan/SiO2 and xanthan grafted with vinylsilane derivatives. Chemical characterization evaluated by traditional spectroscopic methods. Investigation of fluids response to reservoir environment assessed through rheological performance relative to shearing rate, ionic strength, and thermal stability. A sequence of flooding runs generated on 10 sandstone outcrops with different porosity and permeabilities. Core wetness assessed through relative permeability curves at different water saturation. The flooding tests indicate that grafting of the silica derivative overcome the shortage of xanthan solution in flooding operations relative to the reservoir conditions. The ability of the flooding solutions to alter rock wettability explored through relative permeability curves at different water saturation. The results reveal that the synthesized composite was a promised agent for enhancing oil recovery and profile conformance.

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Stability and rheological properties of nanofluids stabilized by SiO2 nanoparticles and SiO2-TiO2 nanocomposites for oilfield applications

Cited by 112 publications

References 51 publications

The effect of silica nanoparticle on thermal, chemical, corrosive, and the nature‐friendly properties of refrigerant compressor lubricants—A comparative study

The effect of silica nanoparticle on thermal, chemical, corrosive, and the nature‐friendly properties of refrigerant compressor lubricants—A comparative study

Systematical study of multi-walled carbon nanotube nanofluids based disposed transformer oil

Assessment of xanthan gum and xanthan-g-silica derivatives as chemical flooding agents and rock wettability modifiers

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