Research and Application on Oil-in-Water Emulsion for Selective Water Plugging

2014 ◽  
Vol 912-914 ◽  
pp. 500-504
Author(s):  
Gang Wu ◽  
Li Li Zhang ◽  
Gang Xie ◽  
Wei Zhang ◽  
Deng Feng Ju ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Water Relation ◽  
Field Application ◽  
Water Flooding ◽  
Core Flooding ◽  
Permeability Ratio ◽  
Water Emulsion ◽  
Oil In Water ◽  
Conventional Technology ◽  
Oil In Water Emulsion

Heterogeneity, Permeability ratio, Selective water plugging agent, Oil-soluble resin Abstract. In view of high heterogeneity and complicated oil-water relation of fault block oil reservoirs, conventional technology of water plugging and profile controlling cannot well adapt to it. An oil-in-water emulsion for selective water plugging was designed by using emulsified heavy oil for reference and the aim was to improve the injection ability and plugging strength. The single core flooding results indicated that its breakthrough pressure gradient >26MPa/m,water plugging rate >97% after water flooding for 100 pore-volume. The parallels core flooding results indicated that it has good water flooding endurance than emulsified heavy oil, and can be used to the selective water plugging and profile controlling of heavy heterogeneous layers with the permeability ratio is no less than 7. Field application is successful.

High performance isotropic polyethersulfone membranes for heavy oil-in-water emulsion separation

2020 ◽  
Vol 253 ◽  
pp. 117467 ◽  
Author(s):  
Ahmed A.R. Abdel-Aty ◽  
Yasmeen S. Abdel Aziz ◽  
Rehab M.G. Ahmed ◽  
Ibrahim M.A. ElSherbiny ◽  
Stefan Panglisch ◽  
...  
Keyword(s):  
Heavy Oil ◽  
High Performance ◽  
Water Emulsion ◽  
Oil In Water ◽  
Emulsion Separation ◽  
Oil In Water Emulsion

Injection of Dilute Oil-in-Water Emulsion as an Enhanced Oil Recovery Method for Heavy Oil: 1D and 3D Flow Configurations

2016 ◽  
Vol 113 (2) ◽  
pp. 267-281 ◽  
Author(s):  
Manoel L. R. de Farias ◽  
Elisabete F. Campos ◽  
Antônio Luiz S. de Souza ◽  
Marcio S. Carvalho
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Heavy Oil ◽  
3D Flow ◽  
Water Emulsion ◽  
Recovery Method ◽  
Oil In Water ◽  
Flow Configurations ◽  
Oil In Water Emulsion

Investigation into the Functions of Alkali and Surfactant in Chemical Flooding for Enhanced Heavy-Oil Recovery

2012 ◽  
Vol 524-527 ◽  
pp. 1816-1820 ◽  
Author(s):  
Ji Jiang Ge ◽  
Hai Hua Pei ◽  
Gui Cai Zhang ◽  
Xiao Dong Hu ◽  
Lu Chao Jin
Keyword(s):  
Oil Recovery ◽  
Heavy Oil ◽  
Chemical Flooding ◽  
Surfactant Flooding ◽  
Core Flooding ◽  
Sweep Efficiency ◽  
Water Emulsion ◽  
Tertiary Oil Recovery ◽  
Fingering Phenomena ◽  
Oil In Water Emulsion

In this study, a comparative study of alkaline flooding and alkali-surfactant flooding were conducted for Zhuangxi heavy oil with viscosity of 325 mPa•s at 55 °C. The results of core flooding tests show that the tertiary oil recovery of alkali-surfactant flooding are lower than those of alkaline-only flooding, in spite of the coexistence of the surfactant and alkali can reduce the IFT between the heavy oil and aqueous phase to an ultralow level. Further flood study via glass-etching micromodel tests demonstrates that injected alkaline-only solution can penetrate into the oil phase and creates some discontinuous water droplet inside the oil phase that tend to lower the mobility of the injected water and lead to the improvement of sweep efficiency. While for alkali-surfactant flooding, heavy oil is easily emulsified in brine by an alkaline plus very dilute surfactant formula to form oil-in-water emulsion, and then entrained in the water phase. Therefore, viscous fingering phenomena occur during the alkali-surfactant flooding, resulting in relatively lower sweep efficiency.

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