Stability of Silica Nanoparticle Dispersion in Brine Solution: An Experimental Study

Authors

  • Ameneh Sobhani Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
  • Nasim Barati Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
  • Riyaz Kharrat Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
Abstract:

Nanotechnology has various applications in oil and gas industry such as enhanced oil recovery (EOR). The main challenge in using nanoparticles in EOR processes is their stability in harsh conditions such as high temperature, high pressure, and intermediate to high salinity. However, most of the recent experimental works have been performed under unrealistic conditions such as the use of distilled water as the injected fluid and room temperature. The main objective of this work is to study the effect of these factors on the stability of nanoparticle dispersions through several methods such as direct observation, optical absorption measurement, and nanoparticle effective diameter in different periods of time. The critical salt concentration (CSC) was determined for two kinds of monovalent electrolytes in various particle concentrations and temperatures. The results have shown that CSC for potassium chloride (KCl) is less than sodium chloride (NaCl) and it decreases as nanoparticle concentration and temperature increase. Moreover, the influence of two types of surfactants on the stability of silica dispersions was studied and the results revealed that an anionic surfactant increases the CSC, while a nonionic surfactant leads to the instability of dispersion even at low electrolyte concentrations.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

stability of silica nanoparticle dispersion in brine solution: an experimental study

nanotechnology has various applications in oil and gas industry such as enhanced oil recovery (eor). the main challenge in using nanoparticles in eor processes is their stability in harsh conditions such as high temperature, high pressure, and intermediate to high salinity. however, most of the recent experimental works have been performed under unrealistic conditions such as the use of distill...

full text

Experimental study of TiO2 nanoparticle adhesion to silica and Fe(III) oxide-coated silica surfaces

full text

an exploratory study of differential item functioning (dif) in efl reading comprehension

بررسی دلایل عملکرد متفاوت سوالات آزمون درک مطلب به زبان خارجی تاریخچه ی تحقیق درباره ی منابع عملکرد مختلف سوالات (دیف) در آزمون درک مطلب پر است از مجموعه ای از متغیرهای فرضیه ای که چند مورد از مهمترین آنها عبارتند از: جنسیت، آشنایی با موضوع متن، علاقه به موضوع یا محتوای متن، حدس زدن، و عوامل بافت اجتماعی (پی 2004؛ زومبو و گلین 2005). مطالعه حاضر با استناد به فلسفه ی انکارپذیری پوپر عوامل ذکر...

15 صفحه اول

An experimental study of price dispersion

Price comparison sites have become an increasingly popular way to shop online. Yet, even though consumers have complete access to the list of prices for apparently identical products offered on these sites, persistent price dispersion has been widely observed. One important theoretical explanation for this phenomenon comes from clearinghouse models of price dispersion. These models predict that...

full text

An Experimental Study on Toughening Mechanisms of Fillers in Epoxy/ Silica Nanocomposites

In this paper, a systematic study on the effects of particle size and hybrid of two different size of silica nanoparticles on the toughening mechanisms of bisphenol-A epoxy was conducted. Nanosilica particles with mean diameter of 17 nm and 65 nm were blended into epoxy system. Probable synergy effects of these two nanoparticles on Young’s modulus and yield strength have been investigated. ...

full text

Dispersion stability and drying behavior of colloidal silica

Colloidal suspensions containing nano-sized particles are used in numerous applications such as batteries, inks and paints, and also used as precursors to a wide variety of industrial materials. The ability to control the microstructure during drying is important for many potential applications. When it comes to solar cell technology, controlling the microstructure plays a critical role ranging...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 3  issue 4

pages  26- 40

publication date 2014-10-01

{@ msg @}

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023