肺表面活性物质
石油工程
原油
提高采收率
环境科学
材料科学
水驱
作者
Chang Xin Shi,Wei Dong Liu,Bin Cui,Ji Liu
标识
DOI:10.1007/s10553-012-0345-0
摘要
We have studied the effect of the sulfonate concentration on the interfacial tension between Dagang crude oil and solutions of a mixture of Daqing and Kelamayi petroleum sulfonates (DPS and KPS). We found that a flooding system containing 0.05% DPS and 0.05% KPS can reduce the interfacial tension down to less than 10-5 N/m in the presence of polymer, without using alkali and alcohol. Injection of 30% PV (pore volume) of a slug of this flooding system followed by chase water resulted in a 17.40% increase in oil recovery compared with recovery by waterflooding alone. The final oil recovery was as high as 79.55% of the proven oil reserve.
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