The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w
Alteration in the environmental conditions will cause a reversed reaction between o/w emulsion and w/o emulsion that has similar advantages of different liquids form on the reversible invert emulsion. The reversible phase inversion of the emulsion has a benefit of dealing with drilling cutting, so t...
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2020-07-01
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Online Access: | https://doi.org/10.1515/phys-2020-0112 |
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doaj-36cebd2f2dc24388903de39d7a00fe7b2021-09-05T13:59:37ZengDe GruyterOpen Physics2391-54712020-07-0118138039010.1515/phys-2020-0112phys-2020-0112The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/wLiu Fei0Wang Yanling1Li Xiaqing2Zhang Zhaoxiang3Dai Xiaodong4Wang Xuewu5Xin Yanping6Liu Kun7Gao Liang8Du Dehui9Xing Chunyu10Jiang Hong11Liu Zhihua12School of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, P. R. ChinaFormation Damage Institute, Petroleum Engineering Technology Research Institute of Shengli Oilfield Company, Sinopec, Dongying, Shandong 257000, P. R. ChinaShandong Key Laboratory of Heavy Oil Production Technology, Petroleum Engineering Technology Research Institute, Shengli Oilfield Company Postdoctoral Research Station, Sinopec, Dongying, Shandong 257000, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaSchool of Petroleum and Gas Engineering, Shengli College, China University of Petroleum, Dongying, Shandong 257061, P. R. ChinaAlteration in the environmental conditions will cause a reversed reaction between o/w emulsion and w/o emulsion that has similar advantages of different liquids form on the reversible invert emulsion. The reversible phase inversion of the emulsion has a benefit of dealing with drilling cutting, so the reversible invert emulsion also can be thought used as a drilling fluid. The phase inversion from w/o emulsion to o/w emulsion can be divided into three stages. They are w/o emulsion, w/o/w emulsion, and o/w emulsion. In the w/o emulsion stage, the structure appeared among water droplets when the percentage of the HCl solution (5%) was less than 0.375%. In the w/o/w emulsion stage, the structure among water droplets existed at the beginning of this stage; however, the internal phase and the external phase can interchange their positions during the process. In the third stage, the structures among droplets of the emulsion would be broken and the degree of the dispersion of the oil droplet in the emulsion would increase. The changes in the microstructure, conductivity, electrical stability, standing stability, and the viscosity of the emulsion, which have edified among droplets in the process from w/o emulsion to o/w emulsion, were studied. The result of the microstructure microscopic observation agrees with the result of the electrical stability and viscosity experiments. Moreover, the internal phase and the external phase can interchange positions during the process.https://doi.org/10.1515/phys-2020-0112ph-responsivephase inversionmicrostructure |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liu Fei Wang Yanling Li Xiaqing Zhang Zhaoxiang Dai Xiaodong Wang Xuewu Xin Yanping Liu Kun Gao Liang Du Dehui Xing Chunyu Jiang Hong Liu Zhihua |
spellingShingle |
Liu Fei Wang Yanling Li Xiaqing Zhang Zhaoxiang Dai Xiaodong Wang Xuewu Xin Yanping Liu Kun Gao Liang Du Dehui Xing Chunyu Jiang Hong Liu Zhihua The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w Open Physics ph-responsive phase inversion microstructure |
author_facet |
Liu Fei Wang Yanling Li Xiaqing Zhang Zhaoxiang Dai Xiaodong Wang Xuewu Xin Yanping Liu Kun Gao Liang Du Dehui Xing Chunyu Jiang Hong Liu Zhihua |
author_sort |
Liu Fei |
title |
The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w |
title_short |
The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w |
title_full |
The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w |
title_fullStr |
The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w |
title_full_unstemmed |
The phase inversion mechanism of the pH-sensitive reversible invert emulsion from w/o to o/w |
title_sort |
phase inversion mechanism of the ph-sensitive reversible invert emulsion from w/o to o/w |
publisher |
De Gruyter |
series |
Open Physics |
issn |
2391-5471 |
publishDate |
2020-07-01 |
description |
Alteration in the environmental conditions will cause a reversed reaction between o/w emulsion and w/o emulsion that has similar advantages of different liquids form on the reversible invert emulsion. The reversible phase inversion of the emulsion has a benefit of dealing with drilling cutting, so the reversible invert emulsion also can be thought used as a drilling fluid. The phase inversion from w/o emulsion to o/w emulsion can be divided into three stages. They are w/o emulsion, w/o/w emulsion, and o/w emulsion. In the w/o emulsion stage, the structure appeared among water droplets when the percentage of the HCl solution (5%) was less than 0.375%. In the w/o/w emulsion stage, the structure among water droplets existed at the beginning of this stage; however, the internal phase and the external phase can interchange their positions during the process. In the third stage, the structures among droplets of the emulsion would be broken and the degree of the dispersion of the oil droplet in the emulsion would increase. The changes in the microstructure, conductivity, electrical stability, standing stability, and the viscosity of the emulsion, which have edified among droplets in the process from w/o emulsion to o/w emulsion, were studied. The result of the microstructure microscopic observation agrees with the result of the electrical stability and viscosity experiments. Moreover, the internal phase and the external phase can interchange positions during the process. |
topic |
ph-responsive phase inversion microstructure |
url |
https://doi.org/10.1515/phys-2020-0112 |
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