Selection of Oil Displacement Agent and Performance Evaluation for Foam Complex System

Abstract:

DIGEST: With the Interfacial tension test, researched the active agent interface behavior of HXJ-1 and HXJ-2.Test study indicates that the alkali concentration less than 0.6% and 1.2% respectively, the active agent HXJ-and HXJ-2 can form ultralow interfacial tension, besides the area of ultralow interfacial tension formed by HXJ-1 is larger than HXJ-2. As can be seen from the chorogram chart of foam composite index, without alkali and polymer, the two kinds of surface active agent generate the foam composite index similarly in the different density of active agent. The exist of alkali is not effect positively for the formation of super foam in the system, and adding appropriate (<200mg/L) polymer can increase the system foam effectively. When add the alkali or polymer, the area of super foam formed by HXJ-1 will larger than HXJ-2.By the percentage of foam quality, the HXJ-1 required less amount of active agent and concentration to transfer the whole system into the foam than HXJ-2, may draw a conclusion that the HXJ-1 is more easily foam than HXJ-2. The chemical flooding recovery efficiency of HXJ-1 improved three percentage point compared with HXJ-2.

• Periodical: Applied Mechanics and Materials (Volume 437)
• Pages: 1097-1100
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.437.1097
• Online since: October 2013
• Authors: Wen Xiang Wu, Jia Bin Tang*, Zhu Xin Zhang
• Keywords: Displacement Efficiency, Foam System, Foaming Agent, Interface Behavlor

References

[1] LiuZhong chun, HouJi rui, YueXiang an, WuWen xiang, the Analysis of Foam Combination Flooding Microscopic Oil Displacement Characteristics[J]. The Academic Journal of University of Petroleum(natural science page)2003, 27(1): 49-53.

[2] WuXiao lin, ChenGuang yu, ZhangGuo yin, Study Formula of Foam Complex System[J]. Daqing petroleum geology and development, 2000, 19(3): 27-29.

[3] WangZeng lin, WangQi wei, Strengthen Foam Flooding System Performance Study[J]. The Academic Journal of University of Petroleum(natural science page), 2004, 28(3): 49-51.

[4] QianYu, ZhangSi fu, WuJun zheng, Research on foam stability and influencing factors of foam complex flooding[J]. Daqing petroleum geology and development, 2001, 20(2): 33-35.