Study on the relationship between emulsion stability and droplet dynamics of a spontaneous emulsion for chemical enhanced oil recovery
| Autor: | Qiong Zhou, Baojun Bai, Wanli Kang, Hairong Wu, Zhe Li, Haishun Feng, Jun Chen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics 02 engineering and technology Polymer Chemical enhanced oil recovery 010502 geochemistry & geophysics 021001 nanoscience & nanotechnology 01 natural sciences Light scattering Surfaces Coatings and Films Brine Pulmonary surfactant chemistry Chemical engineering Emulsion Enhanced oil recovery Physical and Theoretical Chemistry 0210 nano-technology Droplet size 0105 earth and related environmental sciences |
| Zdroj: | Journal of Dispersion Science and Technology. 39:1214-1222 |
| ISSN: | 1532-2351 0193-2691 |
| DOI: | 10.1080/01932691.2017.1391699 |
| Popis: | Spontaneous emulsion (SE) has attracted increasing attention, especially in the development of low-permeability reservoirs (with an average throat radius of 0.1–2 µm) for enhanced oil recovery. In this work, based on multiple light scattering principles, the relationship between emulsion stability and the droplet dynamics of SEs was investigated. The results showed that the synergistic effect of surfactant and polymer was crucial for oil emulsification in brine, since the stability of the emulsion was greatly improved. The emulsion stability and droplet dynamics depend on the temperature, concentration, and type of emulsifier. The optimal combination system had the lowest Turbiscan stability index value, and the emulsion stability time was more than 2000s. The average droplet size was 1.50 µm, and the droplet migration rate was 7.21 mm/h. The stability of the emulsion was resulted from the microscopic droplet dynamics. By reducing the migration rate of the droplets, stability of the emulsion can b... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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