Cargando…

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

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 d...

Descripción completa

Detalles Bibliográficos
Autores principales: Hadia, Nanji J., Ng, Yeap Hung, Stubbs, Ludger Paul, Torsæter, Ole
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7999990/
https://www.ncbi.nlm.nih.gov/pubmed/33799757
http://dx.doi.org/10.3390/nano11030707
_version_ 1783670906197901312
author Hadia, Nanji J.
Ng, Yeap Hung
Stubbs, Ludger Paul
Torsæter, Ole
author_facet Hadia, Nanji J.
Ng, Yeap Hung
Stubbs, Ludger Paul
Torsæter, Ole
author_sort Hadia, Nanji J.
collection PubMed
description 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.
format Online
Article
Text
id pubmed-7999990
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-79999902021-03-28 High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications Hadia, Nanji J. Ng, Yeap Hung Stubbs, Ludger Paul Torsæter, Ole Nanomaterials (Basel) Article 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. MDPI 2021-03-11 /pmc/articles/PMC7999990/ /pubmed/33799757 http://dx.doi.org/10.3390/nano11030707 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ).
spellingShingle Article
Hadia, Nanji J.
Ng, Yeap Hung
Stubbs, Ludger Paul
Torsæter, Ole
High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title_full High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title_fullStr High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title_full_unstemmed High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title_short High Salinity and High Temperature Stable Colloidal Silica Nanoparticles with Wettability Alteration Ability for EOR Applications
title_sort high salinity and high temperature stable colloidal silica nanoparticles with wettability alteration ability for eor applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7999990/
https://www.ncbi.nlm.nih.gov/pubmed/33799757
http://dx.doi.org/10.3390/nano11030707
work_keys_str_mv AT hadiananjij highsalinityandhightemperaturestablecolloidalsilicananoparticleswithwettabilityalterationabilityforeorapplications
AT ngyeaphung highsalinityandhightemperaturestablecolloidalsilicananoparticleswithwettabilityalterationabilityforeorapplications
AT stubbsludgerpaul highsalinityandhightemperaturestablecolloidalsilicananoparticleswithwettabilityalterationabilityforeorapplications
AT torsæterole highsalinityandhightemperaturestablecolloidalsilicananoparticleswithwettabilityalterationabilityforeorapplications