Stability of w/o emulsions for MgSO4 and Na2CO3 solutions under dynamic and static conditions
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
Emulsions are widely used in various sectors of the oil industry as they can spontaneously be formed during drilling, production, transportation, and oil separation processes. The stability of these emulsions is closely related to species such as asphaltene and resin at the water/oil interface. Emulsion stability was studied at static and dynamic conditions where water/oil emulsions were prepared using different concentrations of MgSO4 and Na2CO3 solutions. The optimum concentration of MgSO4 and Na2CO3 solutions was obtained by microscopic imaging of the samples and analyzing through the ImageJ software. Once the optimum concentrations was established, the stability of emulsions were investigated in a 10-day time period. Emulsion stability at dynamic condition was evaluated through injecting the optimum aqueous solutions into a micromodel. Based on these findings, 50,000 ppm and 60,000 ppm were identified as optimum concentrations for the formation of stable w/o emulsions for MgSO4 and Na2O3, respectively. Asphaltene also showed unique behavior with pH in which higher polarization was observed for basic solutions. According to this finding, more stable emulsions were observed in the optimum solution of MgSO4 (in comparison with the Na2O3 solution) under static and dynamic conditions.
Details
| Original language | English |
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| Pages (from-to) | 971-985 |
| Number of pages | 15 |
| Journal | Canadian Journal of Chemical Engineering |
| Volume | 99 |
| Issue number | 4 |
| Publication status | Published - Apr 2021 |
| Peer-reviewed | Yes |
External IDs
| Scopus | 85097511111 |
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