Rheological Properties of Water-in-Brazilian Crude Oil Emulsions: Effect of Water Content, Salinity, and pH

2018 ◽  
Vol 32 (8) ◽  
pp. 8880-8890 ◽  
Author(s):  
Cesar B. Z. de Oliveira ◽  
W. J. Souza ◽  
C. F. Santana ◽  
C. C. Santana ◽  
C. Dariva ◽  
...  
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Rheological Properties ◽  
Effect Of Water ◽  
Oil Emulsions

Demulsification of a Water-in-crude Oil Emulsion with a Corn Oil BasedDemulsifier using the Response Surface Methodology: Modelling and Optimization

2021 ◽  
Vol 14 ◽  
Author(s):  
Abed Saad ◽  
Nour Abdurahman ◽  
Rosli Mohd Yunus
Keyword(s):  
Response Surface Methodology ◽  
Crude Oil ◽  
Water Content ◽  
Response Surface ◽  
Separation Efficiency ◽  
Corn Oil ◽  
Oil Emulsion ◽  
Optimal Values ◽  
Input Variables ◽  
Oil Emulsions

: In this study, the Sany-glass test was used to evaluate the performance of a new surfactant prepared from corn oil as a demulsifier for crude oil emulsions. Central composite design (CCD), based on the response surface methodology (RSM), was used to investigate the effect of four variables, including demulsifier dosage, water content, temperature, and pH, on the efficiency of water removal from the emulsion. As well, analysis of variance was applied to examine the precision of the CCD mathematical model. The results indicate that demulsifier dose and emulsion pH are two significant parameters determining demulsification. The maximum separation efficiency of 96% was attained at an alkaline pH and with 3500 ppm demulsifier. According to the RSM analysis, the optimal values for the input variables are 40% water content, 3500 ppm demulsifier, 60 °C, and pH 8.

Effect of Water Content and Surfactant Type on Viscosity and Stability of Emulsified Heavy Mukhaizna Crude Oil

2007 ◽  
Vol 21 (2) ◽  
pp. 1014-1018 ◽  
Author(s):  
Naoya Shigemoto ◽  
Rashid S. Al-Maamari ◽  
Baba Y. Jibril ◽  
Akihiko Hirayama ◽  
Mark Sueyoshi
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Effect Of Water

scholarly journals EFFECT OF WATER CONTENT, TEMPERATURE AND AVERAGE DROPLET SIZE ON THE SETTLING VELOCITY OF WATER-IN-OIL EMULSIONS

2015 ◽  
Vol 32 (2) ◽  
pp. 455-464 ◽  
Author(s):  
W. J. Souza ◽  
K. M. C. Santos ◽  
A. A. Cruz ◽  
E. Franceschi ◽  
C. Dariva ◽  
...  
Keyword(s):  
Water Content ◽  
Droplet Size ◽  
Settling Velocity ◽  
Effect Of Water ◽  
Oil Emulsions

Experimental measurements of water content in crude oil emulsions by terahertz time-domain spectroscopy

2013 ◽  
Vol 10 (4) ◽  
pp. 506-509 ◽  
Author(s):  
Wu-Jun Jin ◽  
Kun Zhao ◽  
Chen Yang ◽  
Chang-Hong Xu ◽  
Hao Ni ◽  
...  
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Time Domain ◽  
Experimental Measurements ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
Oil Emulsions

scholarly journals Ultrasound-assisted dewatering of crude oil from Kumkol oilfield

2021 ◽  
pp. 4-10
Author(s):  
Zhanna Nadirova ◽  
Oleksandr Ivakhnenko ◽  
Manap Zhantasov ◽  
Gulmira Bimbetova ◽  
Kazim Nadirov
Keyword(s):  
Crude Oil ◽  
Water Content ◽  
Ultrasonic Treatment ◽  
Initial Water Content ◽  
Residual Water ◽  
Acoustic Intensity ◽  
Initial Water ◽  
Ultrasonic Action ◽  
Ultrasound Assisted ◽  
Oil Emulsions

Reducing the water content of crude oil is a necessary step in preparing oil for transportation and processing. This task is complicated by the presence of stable water-in-oil emulsions. The most widely used approach to oil demulsification is exploring chemical demulsifiers. However, the high cost and impossibility of regenerating the latter require the search for new ways to destroy water-oil emulsions. One of the promising areas is the use of ultrasound. This paper presents the results of studies on the ultrasonic treatment of four samples of emulsions with different water content (8.74; 15; 25 and 30 vol.%) based on oil from the Kumkol oilfield (Kazakhstan). Samples of emulsions were subjected to ultrasonic action at a frequency of 40 kHz for 5-60 min at a temperature of 70±1°C, followed by settling for 40 min at the indicated temperature. The influence of the initial water content in the emulsion, the acoustic intensity, as well as the duration of ultrasonic treatment on the dewatering ratio was investigated. It was found that the residual water content in the oil was 5.04- 7.82 vol.%. Ultrasonic treatment of crude oil from the Kumkol oilfield can be used for preliminary dewatering, to subsequently reduce the consumption of chemical demulsifiers.

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