Petroleum Science >2013, Issue 3: 415-420 DOI: https://doi.org/10.1007/s12182-013-0290-5
Influences of water treatment agents on oil-waterinterfacial properties of oilfield produced water Open Access
文章信息
作者：Guo Jixiang,Cao Jingjing,Li Mingyuan and Xia Haiying1
作者单位：
Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China;1 Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China;1 Enhanced Oil Recovery Institute, China University of Petroleum, Beijing 102249, China;2 Engineering Technology Institute of Southwest Petroleum Branch Company, Sinopec, Sicuan 618000, China
投稿时间：2012-10-30
引用方式：Guo, J., Cao, J., Li, M. et al. Pet. Sci. (2013) 10: 415. https://doi.org/10.1007/s12182-013-0290-5
文章摘要
The emulsion stability of oilfield produced water is related to the oil-water interfacial film
strength and the zeta potential of the oil droplets. We investigated the effects of water treatment agents
(corrosion inhibitor SL-2, scale inhibitor HEDP, germicide 1227, and flocculant polyaluminium chloride
PAC) on the stability of oilfield produced water. The influence of these treatment agents on oil-water
interfacial properties and the mechanism of these agents acting on the oilfield produced water were
studied by measuring the interfacial shear viscosity, interfacial tension and zeta electric potential. The
results indicated that the scale inhibitor HEDP could increase the oil-water interfacial film strength, and it
could also increase the absolute value of the zeta potential of oil droplets. HEDP played an important role
in the stability of the emulsion. Polyaluminum chloride (PAC) reduced the stability of the emulsion by
considerably decreasing the absolute value of the zeta potential of oil droplets. Corrosion inhibitor SL-2
and germicide 1227 could decrease the oil-water interfacial tension, whereas they had little influence on
oil-water interfacial shear viscosity and oil-water interfacial electricity properties.
strength and the zeta potential of the oil droplets. We investigated the effects of water treatment agents
(corrosion inhibitor SL-2, scale inhibitor HEDP, germicide 1227, and flocculant polyaluminium chloride
PAC) on the stability of oilfield produced water. The influence of these treatment agents on oil-water
interfacial properties and the mechanism of these agents acting on the oilfield produced water were
studied by measuring the interfacial shear viscosity, interfacial tension and zeta electric potential. The
results indicated that the scale inhibitor HEDP could increase the oil-water interfacial film strength, and it
could also increase the absolute value of the zeta potential of oil droplets. HEDP played an important role
in the stability of the emulsion. Polyaluminum chloride (PAC) reduced the stability of the emulsion by
considerably decreasing the absolute value of the zeta potential of oil droplets. Corrosion inhibitor SL-2
and germicide 1227 could decrease the oil-water interfacial tension, whereas they had little influence on
oil-water interfacial shear viscosity and oil-water interfacial electricity properties.
关键词
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Water treatment agents, oil-water interfacial properties, emulsion stability, oilfield producedwater