Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant
Betaine surfactants have been widely used as oil displacement agents for tertiary oil recovery due to their unique amphiphilic structure,high surface activity,low critical micelle concentration and good emulsification performance.To investigate the effect of alkyl carbon chain number on the chemical...
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Editorial Department of Journal of Petrochemical Universities
2025-02-01
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| Series: | Shiyou huagong gaodeng xuexiao xuebao |
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| Online Access: | https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.01.002 |
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| author | Shijun CHEN |
| author_facet | Shijun CHEN |
| author_sort | Shijun CHEN |
| collection | DOAJ |
| description | Betaine surfactants have been widely used as oil displacement agents for tertiary oil recovery due to their unique amphiphilic structure,high surface activity,low critical micelle concentration and good emulsification performance.To investigate the effect of alkyl carbon chain number on the chemical flooding performance of betaine surfactants,5 kinds of betaine solutions with alkyl carbon chain number (n) of 12,14,16,18 and 20 were selected,and their interfacial tension and emulsification properties were tested.The parameters of radial distribution,density distribution,mean azimuth shift,rotation radius and binding energy were analyzed by using MS software，and conducted indoor simulated oil displacement experiments.The results show that with the increase of the number of carbon atoms of long alkyl chain,the oil displacement performance of surfactants was first enhanced and then weakened,and the chemical displacement performance of C16HBC surfactants in betaine was the best.The effects of betaine solution with different alkyl carbon chain number on its energy,radial distribution,density distribution, mean orientation shift, binding energy and other parameters were determined by molecular simulation studies.Simulation oil displacement experiments verified that C16HBC surfactant could significantly improve oil recovery by 20.7%. |
| format | Article |
| id | doaj-art-ff293b88a8da45e3acb95297b56d887f |
| institution | OA Journals |
| issn | 1006-396X |
| language | zho |
| publishDate | 2025-02-01 |
| publisher | Editorial Department of Journal of Petrochemical Universities |
| record_format | Article |
| series | Shiyou huagong gaodeng xuexiao xuebao |
| spelling | doaj-art-ff293b88a8da45e3acb95297b56d887f2025-08-20T02:10:41ZzhoEditorial Department of Journal of Petrochemical UniversitiesShiyou huagong gaodeng xuexiao xuebao1006-396X2025-02-01381111810.12422/j.issn.1006-396X.2025.01.002Effect of Molecular Structure on Oil Displacement Performance of Betaine SurfactantShijun CHEN0School of Chemistry and Chemical Engineering，Xi 'an Shiyou University，Xi 'an Shaanxi 710065，ChinaBetaine surfactants have been widely used as oil displacement agents for tertiary oil recovery due to their unique amphiphilic structure,high surface activity,low critical micelle concentration and good emulsification performance.To investigate the effect of alkyl carbon chain number on the chemical flooding performance of betaine surfactants,5 kinds of betaine solutions with alkyl carbon chain number (n) of 12,14,16,18 and 20 were selected,and their interfacial tension and emulsification properties were tested.The parameters of radial distribution,density distribution,mean azimuth shift,rotation radius and binding energy were analyzed by using MS software，and conducted indoor simulated oil displacement experiments.The results show that with the increase of the number of carbon atoms of long alkyl chain,the oil displacement performance of surfactants was first enhanced and then weakened,and the chemical displacement performance of C16HBC surfactants in betaine was the best.The effects of betaine solution with different alkyl carbon chain number on its energy,radial distribution,density distribution, mean orientation shift, binding energy and other parameters were determined by molecular simulation studies.Simulation oil displacement experiments verified that C16HBC surfactant could significantly improve oil recovery by 20.7%.https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.01.002betaine surfactantalkyl carbon chain numberrecovery efficiency |
| spellingShingle | Shijun CHEN Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant Shiyou huagong gaodeng xuexiao xuebao betaine surfactant alkyl carbon chain number recovery efficiency |
| title | Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant |
| title_full | Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant |
| title_fullStr | Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant |
| title_full_unstemmed | Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant |
| title_short | Effect of Molecular Structure on Oil Displacement Performance of Betaine Surfactant |
| title_sort | effect of molecular structure on oil displacement performance of betaine surfactant |
| topic | betaine surfactant alkyl carbon chain number recovery efficiency |
| url | https://journal.lnpu.edu.cn/syhg/CN/10.12422/j.issn.1006-396X.2025.01.002 |
| work_keys_str_mv | AT shijunchen effectofmolecularstructureonoildisplacementperformanceofbetainesurfactant |