Next Article in Journal
Suitability of Different Titanium Dioxide Nanotube Morphologies for Photocatalytic Water Treatment
Next Article in Special Issue
Experimental Investigation of Polymer-Coated Silica Nanoparticles for EOR under Harsh Reservoir Conditions of High Temperature and Salinity
Previous Article in Journal
Green Electrospinning of Polymer Latexes: A Systematic Study of the Effect of Latex Properties on Fiber Morphology
Previous Article in Special Issue
Pore- and Core-Scale Insights of Nanoparticle-Stabilized Foam for CO2-Enhanced Oil Recovery
Article

High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications

1
Institute of Chemical and Engineering Sciences, Agency for Science, Technology, and Research (A*STAR), 1 Pesek Road, Jurong Island, Singapore 627833, Singapore
2
Department of Geoscience and Petroleum, Norwegian University of Science and Technology (NTNU), 7031 Trondheim, Norway
*
Authors to whom correspondence should be addressed.
Academic Editor: Alberto Villa
Nanomaterials 2021, 11(3), 707; https://doi.org/10.3390/nano11030707
Received: 31 January 2021 / Revised: 2 March 2021 / Accepted: 3 March 2021 / Published: 11 March 2021
(This article belongs to the Special Issue Application of Nanoparticles for Oil Recovery)
The stability of nanoparticles at reservoir conditions is a key for a successful application of nanofluids for any oilfield operations, e.g., enhanced oil recovery (EOR). It has, however, remained a challenge to stabilize nanoparticles under high salinity and high temperature conditions for longer duration (at least months). In this work, we report surface modification of commercial silica nanoparticles by combination of zwitterionic and hydrophilic silanes to improve its stability under high salinity and high temperature conditions. To evaluate thermal stability, static and accelerated stability analyses methods were employed to predict the long-term thermal stability of the nanoparticles in pH range of 4–7. The contact angle measurements were performed on aged sandstone and carbonate rock surfaces to evaluate the ability of the nanoparticles to alter the wettability of the rock surfaces. The results of static stability analysis showed excellent thermal stability in 3.5% NaCl brine and synthetic seawater (SSW) at 60 °C for 1 month. The accelerated stability analysis predicted that the modified nanoparticles could remain stable for at least 6 months. The results of contact angle measurements on neutral-wet Berea, Bentheimer, and Austin Chalk showed that the modified nanoparticles were able to adsorb on these rock surfaces and altered wettability to water-wet. A larger change in contact angle for carbonate surface than in sandstone surface showed that these particles could be more effective in carbonate reservoirs or reservoirs with high carbonate content and help improve oil recovery. View Full-Text
Keywords: enhanced oil recovery; nanotechnology for EOR; nanoparticles stability; reservoir condition enhanced oil recovery; nanotechnology for EOR; nanoparticles stability; reservoir condition
Show Figures

Figure 1

MDPI and ACS Style

Hadia, N.J.; Ng, Y.H.; Stubbs, L.P.; Torsæter, O. High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications. Nanomaterials 2021, 11, 707. https://doi.org/10.3390/nano11030707

AMA Style

Hadia NJ, Ng YH, Stubbs LP, Torsæter O. High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications. Nanomaterials. 2021; 11(3):707. https://doi.org/10.3390/nano11030707

Chicago/Turabian Style

Hadia, Nanji J., Yeap H. Ng, Ludger P. Stubbs, and Ole Torsæter. 2021. "High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications" Nanomaterials 11, no. 3: 707. https://doi.org/10.3390/nano11030707

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop