Coreflooding Studies to Evaluate the Impact of Salinity and Wettability on Oil Recovery Efficiency

被引：83
|
作者：
Agbalaka, Chinedu C. [1 ]
Dandekar, Abhijit Y. [1 ]
Patil, Shirish L. [1 ]
Khataniar, Santanu [1 ]
Hemsath, James R. [2 ]
机构：
[1] Univ Alaska Fairbanks, Fairbanks, AK 99775 USA
[2] Natl Energy Technol Lab, Arct Energy Off, Dept Energy, Fairbanks, AK USA
来源：
TRANSPORT IN POROUS MEDIA | 2009年 / 76卷 / 01期
关键词：
Salinity; Wettability; Waterflooding; Coreflood; Residual oil saturation; Oil recovery; Amott-Harvey index; EOR; POROUS-MEDIA; ROCKS;
D O I：
10.1007/s11242-008-9235-7
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this work, coreflood studies were carried out to determine the recovery benefits of low salinity waterflood compared to high salinity waterflood and the role of wettability in any observed recovery benefit. Two sets of coreflood experiments were conducted; the first set examined the EOR potential of low salinity floods in tertiary oil recovery processes, while the second set of experiments examined the secondary oil recovery potential of low salinity floods. Changes in residual oil saturation with variation in wettability, brine salinity and temperature were monitored. All the coreflood tests gave consistent increase in produced oil, corresponding to reduction in residual oil saturation and increase in water-wetness (for the second set of experiments) with decrease in brine salinity and increase in brine temperature.
引用
收藏
页码：77 / 94
页数：18
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