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Preparation of amphiphilic Janus TiO2 nanofluids with co-dispersant for enhanced oil recovery in water flooding reservoirs.

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Title: Preparation of amphiphilic Janus TiO2 nanofluids with co-dispersant for enhanced oil recovery in water flooding reservoirs.
Authors: Pu, Wanfen1,2 (AUTHOR), Wang, Yibo1,2 (AUTHOR) 859994871@qq.com, Tian, Kaiping1,2 (AUTHOR), Ye, Maofan1,2 (AUTHOR), Chen, Qingyuan1 (AUTHOR)
Source: Journal of Dispersion Science & Technology. 2026, Vol. 47 Issue 8, p1455-1470. 16p.
Subject Terms: *Enhanced oil recovery, *Nanofluids, *Pickering emulsions, *Dispersing agents, *Oil field flooding, *Emulsions
Abstract: Water flooding reservoirs are susceptible to a number of challenges, including an increase in reservoir heterogeneity and an elevated water content over the course of production. This can significantly diminish crude oil recovery efficiency. In order to address the issue of low water flooding recovery efficiency, a new approach to synthesizing an amphiphilic Janus TiO2 nanoparticle is presented. The Pickering emulsion method, utilizing sucrose stearate (SE-15) as the dispersant, allows the construction of an in-situ emulsified nanofluid (Janus TiO2/SE-15) with a water-in-oil (W/O) type morphology. Zeta potential experiments revealed that the nanofluid exhibited optimal stability when the mass fraction ratio of SE-15 to Janus TiO2 was 2:3. The nanofluid performance study demonstrated that the water-wet contact angle of the core could be reduced from 100° to 88.5° after 2 h of immersion. Moreover, the formation of a water-in-oil emulsion was observed between Janus TiO2/SE-15 and crude oil, with the emulsification viscosity enhancement rate exhibiting the greatest increase at the concentration of Janus TiO2/SE-15 of 0.08%. The results of core drive experiments indicate that the nanofluid drive can effectively increase the injection pressure and expand the wave volume. The results of core drive experiments indicate that nano-fluid drive can effectively increase the injection pressure and expand the wave volume. The final recovery rate of Janus TiO2/SE-15 nano-fluid was 61.77%. The Janus TiO2/SE-15 nanofluid, the subject of this study, is of significant importance for water flooding reservoirs, as it can be employed to enhance recovery. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194165981
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Preparation of amphiphilic Janus TiO<subscript>2</subscript> nanofluids with co-dispersant for enhanced oil recovery in water flooding reservoirs.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Pu%2C+Wanfen%22">Pu, Wanfen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yibo%22">Wang, Yibo</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> 859994871@qq.com</i><br /><searchLink fieldCode="AR" term="%22Tian%2C+Kaiping%22">Tian, Kaiping</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ye%2C+Maofan%22">Ye, Maofan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Qingyuan%22">Chen, Qingyuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Dispersion+Science+%26+Technology%22">Journal of Dispersion Science & Technology</searchLink>. 2026, Vol. 47 Issue 8, p1455-1470. 16p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Enhanced+oil+recovery%22">Enhanced oil recovery</searchLink><br />*<searchLink fieldCode="DE" term="%22Nanofluids%22">Nanofluids</searchLink><br />*<searchLink fieldCode="DE" term="%22Pickering+emulsions%22">Pickering emulsions</searchLink><br />*<searchLink fieldCode="DE" term="%22Dispersing+agents%22">Dispersing agents</searchLink><br />*<searchLink fieldCode="DE" term="%22Oil+field+flooding%22">Oil field flooding</searchLink><br />*<searchLink fieldCode="DE" term="%22Emulsions%22">Emulsions</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Water flooding reservoirs are susceptible to a number of challenges, including an increase in reservoir heterogeneity and an elevated water content over the course of production. This can significantly diminish crude oil recovery efficiency. In order to address the issue of low water flooding recovery efficiency, a new approach to synthesizing an amphiphilic Janus TiO2 nanoparticle is presented. The Pickering emulsion method, utilizing sucrose stearate (SE-15) as the dispersant, allows the construction of an in-situ emulsified nanofluid (Janus TiO2/SE-15) with a water-in-oil (W/O) type morphology. Zeta potential experiments revealed that the nanofluid exhibited optimal stability when the mass fraction ratio of SE-15 to Janus TiO2 was 2:3. The nanofluid performance study demonstrated that the water-wet contact angle of the core could be reduced from 100° to 88.5° after 2 h of immersion. Moreover, the formation of a water-in-oil emulsion was observed between Janus TiO2/SE-15 and crude oil, with the emulsification viscosity enhancement rate exhibiting the greatest increase at the concentration of Janus TiO2/SE-15 of 0.08%. The results of core drive experiments indicate that the nanofluid drive can effectively increase the injection pressure and expand the wave volume. The results of core drive experiments indicate that nano-fluid drive can effectively increase the injection pressure and expand the wave volume. The final recovery rate of Janus TiO2/SE-15 nano-fluid was 61.77%. The Janus TiO2/SE-15 nanofluid, the subject of this study, is of significant importance for water flooding reservoirs, as it can be employed to enhance recovery. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1080/01932691.2024.2448746
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 16
        StartPage: 1455
    Subjects:
      – SubjectFull: Enhanced oil recovery
        Type: general
      – SubjectFull: Nanofluids
        Type: general
      – SubjectFull: Pickering emulsions
        Type: general
      – SubjectFull: Dispersing agents
        Type: general
      – SubjectFull: Oil field flooding
        Type: general
      – SubjectFull: Emulsions
        Type: general
    Titles:
      – TitleFull: Preparation of amphiphilic Janus TiO2 nanofluids with co-dispersant for enhanced oil recovery in water flooding reservoirs.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Pu, Wanfen
      – PersonEntity:
          Name:
            NameFull: Wang, Yibo
      – PersonEntity:
          Name:
            NameFull: Tian, Kaiping
      – PersonEntity:
          Name:
            NameFull: Ye, Maofan
      – PersonEntity:
          Name:
            NameFull: Chen, Qingyuan
    IsPartOfRelationships:
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          Dates:
            – D: 01
              M: 07
              Text: 2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 01932691
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              Value: 47
            – Type: issue
              Value: 8
          Titles:
            – TitleFull: Journal of Dispersion Science & Technology
              Type: main
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