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Research Progress on Demulsification Technology and Mechanism for Oilfield Crude Oil.

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Title: Research Progress on Demulsification Technology and Mechanism for Oilfield Crude Oil.
Authors: Tang, Longhao1 (AUTHOR) 872591331@qq.com, Wang, Tingyi1 (AUTHOR), Xu, Yingbiao1 (AUTHOR), Xu, Mingming1 (AUTHOR), Wang, Chaolei1 (AUTHOR)
Source: Energy Science & Engineering. Dec2025, Vol. 13 Issue 12, p6572-6586. 15p.
Subject Terms: *Demulsification, *Emulsions, *Separation (Technology), *Drying agents, *Petroleum production, *Oil-water interfaces, *Dehydration reactions, *Petroleum
Abstract: In petroleum recovery processes, crude oil emulsions serve a crucial yet complex dual role. While facilitating hydrocarbon transport from subterranean reservoirs to surface facilities, excessively stable emulsions create significant challenges in downstream dehydration operations. The heightened stability of these colloidal systems necessitates increased demulsifier dosages and elevated separation temperatures, thereby substantially escalating operational expenditures. This technological dichotomy underscores the critical need for a comprehensive understanding of emulsion formation mechanisms, comparative evaluation of demulsification methodologies, and fundamental insights into destabilization processes—all essential for optimizing field operations. Building upon systematic analysis of emulsion characteristics and stabilization mechanisms, this study presents a critical synthesis of contemporary physical and chemical demulsification technologies. We conduct a comparative assessment of their technical advantages and operational limitations, with particular emphasis on advancing chemical demulsification strategies. The paper provides a rigorous classification and mechanistic analysis of diverse demulsifier categories, elucidating their interfacial activity and molecular‐level interactions at oil–water interfaces. Looking toward future developments, we propose promising directions for next‐generation demulsifier design and emerging hybrid separation technologies. These forward‐looking perspectives aim to inform the development of cost‐effective dehydration solutions while addressing current technological gaps in heavy crude processing and environmentally sustainable demulsification. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 190211817
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Research Progress on Demulsification Technology and Mechanism for Oilfield Crude Oil.
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  Data: <searchLink fieldCode="AR" term="%22Tang%2C+Longhao%22">Tang, Longhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 872591331@qq.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Tingyi%22">Wang, Tingyi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Yingbiao%22">Xu, Yingbiao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Mingming%22">Xu, Mingming</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Chaolei%22">Wang, Chaolei</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Energy+Science+%26+Engineering%22">Energy Science & Engineering</searchLink>. Dec2025, Vol. 13 Issue 12, p6572-6586. 15p.
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  Data: *<searchLink fieldCode="DE" term="%22Demulsification%22">Demulsification</searchLink><br />*<searchLink fieldCode="DE" term="%22Emulsions%22">Emulsions</searchLink><br />*<searchLink fieldCode="DE" term="%22Separation+%28Technology%29%22">Separation (Technology)</searchLink><br />*<searchLink fieldCode="DE" term="%22Drying+agents%22">Drying agents</searchLink><br />*<searchLink fieldCode="DE" term="%22Petroleum+production%22">Petroleum production</searchLink><br />*<searchLink fieldCode="DE" term="%22Oil-water+interfaces%22">Oil-water interfaces</searchLink><br />*<searchLink fieldCode="DE" term="%22Dehydration+reactions%22">Dehydration reactions</searchLink><br />*<searchLink fieldCode="DE" term="%22Petroleum%22">Petroleum</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In petroleum recovery processes, crude oil emulsions serve a crucial yet complex dual role. While facilitating hydrocarbon transport from subterranean reservoirs to surface facilities, excessively stable emulsions create significant challenges in downstream dehydration operations. The heightened stability of these colloidal systems necessitates increased demulsifier dosages and elevated separation temperatures, thereby substantially escalating operational expenditures. This technological dichotomy underscores the critical need for a comprehensive understanding of emulsion formation mechanisms, comparative evaluation of demulsification methodologies, and fundamental insights into destabilization processes—all essential for optimizing field operations. Building upon systematic analysis of emulsion characteristics and stabilization mechanisms, this study presents a critical synthesis of contemporary physical and chemical demulsification technologies. We conduct a comparative assessment of their technical advantages and operational limitations, with particular emphasis on advancing chemical demulsification strategies. The paper provides a rigorous classification and mechanistic analysis of diverse demulsifier categories, elucidating their interfacial activity and molecular‐level interactions at oil–water interfaces. Looking toward future developments, we propose promising directions for next‐generation demulsifier design and emerging hybrid separation technologies. These forward‐looking perspectives aim to inform the development of cost‐effective dehydration solutions while addressing current technological gaps in heavy crude processing and environmentally sustainable demulsification. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/ese3.70309
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 15
        StartPage: 6572
    Subjects:
      – SubjectFull: Demulsification
        Type: general
      – SubjectFull: Emulsions
        Type: general
      – SubjectFull: Separation (Technology)
        Type: general
      – SubjectFull: Drying agents
        Type: general
      – SubjectFull: Petroleum production
        Type: general
      – SubjectFull: Oil-water interfaces
        Type: general
      – SubjectFull: Dehydration reactions
        Type: general
      – SubjectFull: Petroleum
        Type: general
    Titles:
      – TitleFull: Research Progress on Demulsification Technology and Mechanism for Oilfield Crude Oil.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Tang, Longhao
      – PersonEntity:
          Name:
            NameFull: Wang, Tingyi
      – PersonEntity:
          Name:
            NameFull: Xu, Yingbiao
      – PersonEntity:
          Name:
            NameFull: Xu, Mingming
      – PersonEntity:
          Name:
            NameFull: Wang, Chaolei
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            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 20500505
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              Value: 13
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              Value: 12
          Titles:
            – TitleFull: Energy Science & Engineering
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