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Use of petroleum sulfonates to obtain an alkali-free flooding system ensuring ultra-low interfacial tension

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Chemistry and Technology of Fuels and Oils Aims and scope

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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Authors and Affiliations

  1. Institute of Porous Flow and Fluid Mechanics, Chinese Academy of Science, Langfang, Hebei, 065007, China

    Chang Xin Shi, Wei Dong Liu, Bin Cui & Ji Liu

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  1. Chang Xin Shi
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  2. Wei Dong Liu
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  3. Bin Cui
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  4. Ji Liu
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 2, pp. 18 – 19, March – April, 2012.

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Shi, C.X., Liu, W.D., Cui, B. et al. Use of petroleum sulfonates to obtain an alkali-free flooding system ensuring ultra-low interfacial tension. Chem Technol Fuels Oils 48, 109–111 (2012). https://doi.org/10.1007/s10553-012-0345-0

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