Study of Oil Displacement Performance of Hydroxyl Sulfobetaine Surfactant

Abstract:

In this paper, new alkali-free hydroxyl sulfobetaine surfactant designed for the target oil reservoir in our laboratory was used. The interfacial tension property, emulsifying capability, peeling the oil film between surfactant/polymer binary oil-displacing system and the target crude oil and the viscosity of the system were investigated systematically. Finally, oil-displacement capacity of the binary oil-displacing system on the target reservoirs natural cores was discussed. The experimental results indicated under the actual condition of the target oil reservoir with total salinity ranging from 4694mg/L to 24270mg/L and temperature being 50°C, the surfactant/polymer binary oil-displacing system with surfactant mass fraction ranging from 0.025% to 0.2% and polymer mass fraction of 0.15% could reach ultra-low interfacial tension with the target crude oil rapidly. The surfactant/polymer binary system above mentioned could emulsified crude oil easily and the volume fraction of WinsorIII middle phase microemulsion could be up to 53.06%. It also could peel the oil film adhered to oil-wet quartz plate quickly and increase the viscoelastic of surfactant/polymer binary oil-displacing system slightly. The displacement experiments made by using natural core in the target oil field indicated that oil recovery was improved by 15% after water flooding. All these results showed that hydroxyl sulfobetaine surfactant had a good potential for flooding in EOR.

• Periodical: Advanced Materials Research (Volume 853)
• Pages: 223-228
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.853.223
• Online since: December 2013
• Authors: Pu Yue, Fan Zhang, Hui Li Fan*
• Keywords: Emulsifying Capability, Hydroxyl Sulfobetaine, Interfacial Tension, Oil Displacement Efficiency, Peeling the Oil Film, Viscosity

References

[1] F.L. Zhao, Y.F. Wang and C.L. Dai: Techniques of enhanced oil recovery after polymer flooding. Journal of China University of Petroleum: Edition of Natural Science, Vol. 30 (2006), pp.85-89.

[2] S.K. Li, Y. Zhu and Y.S. Zhao: Evaluation of pilot results of alkali-surfactant- polymer flooding in Daqing Oilfield. Acta Petrolei Sinica, Vol. 26 (2005), pp.56-59, 63.

[3] Y.Y. Zhu, Q.F. Hou and W.D. Liu: Recent progress and effects analysis of ASP flooding field tests. SPE 151285 (2012).

[4] Y.G. Liu, Q. Lu and J.G. Wang: Research on EOR by binary combination flooding in Jinzhou 9-3 Oilfield. Petroleum Geology and Recovery Efficiency, Vol. 16 (2009), pp.68-73.

[5] F.L. Zhao: Oilfield Chemistry (Petroleum University Publishing House, China 2000).

[6] Y.F. Wang, F.L. Zhao and B.J. Bai: Optimized surfactant IFT and polymer viscosity for surfactant-polymer flooding in heterogeneous formations. SPE 127391 (2010).

DOI: 10.2118/127391-ms

[7] F.G. Zhao, X.A. Yue and J.R. Hou: Impact of alkali on emulsification of compound flooding system and crude oil. Petroleum Drilling Techniques, Vol. 38 (2010), pp.62-66.

[8] Y.Y. Zhu, Y. Zhang and J.L. Niu: The progress in the alkali-free surfactant-polymer combination flooding technique. Petroleum Exploration and Development, Vol. 39 (2012), pp.346-351.

DOI: 10.1016/s1876-3804(12)60053-6

[9] P.L. McGuire, J.R. Chatham and F.K. Pask van: Low salinity oil recovery: an exciting new EOR opportunity for Alaska's North Slope. SPE 93903 (2005).

DOI: 10.2118/93903-ms

[10] P. Jiang, G.C. Zhang and J.J. Ge: Progress in the research of wettability reversal mechanism. Journal of Xi'an Shiyou University: Natural Science Edition, Vol. 22 (2007), p.78~85.

[11] D. Wang, H. Xia and S. Yang: The influence of visco-elasticity on micro forces and displacement efficiency in pores cores and in the field. SPE 127453 (2010).

DOI: 10.2118/127453-ms

[12] J.R. Hou, Z.C. Liu and S.F. Zhang: The role of viscoelasticity of alkali/surfactant/polymer solutions in enhanced oil recovery. Journal of Petroleum Science and Engineering, Vol. 47 (2005), p.219– 235.

DOI: 10.1016/j.petrol.2005.04.001

[13] G. Wang, D.M. Wang and H.F. Xia: Mechanism for enhancing oil-displacement efficiency by betaine surfactant after polymer flooding. Acta Petrolei Sinica, Vol. 28 (2007), pp.86-90.

[14] G.X. Zhao: Principles of Surfactant Action (Chinese Light Industry Press, China 2003).

[15] D.M. Wang, C.D. Liu and W.X. Wu: Development of an ultra-low interfacial tension surfactant in a system with no alkali for chemical flooding. SPE 109017 (2008).

DOI: 10.2118/109017-ms

[16] Z.H. Sui, J.K. Qu and S.C. Lu: Study of salt resisting surfactant oil displacement system. Advances In Fine Petrochemicals, Vol. 3 (2002), pp.35-38.

[17] K.A. Elraies, I.M. Tan and M. Awang: A new approach to low-cost, high performance chemical flooding system. SPE 133004 (2010).

DOI: 10.2118/133004-ms

[18] R. Kumar, K.K. Mohanty: ASP flooding of viscous oils. SPE 135265 (2010).

[19] V.L. Kolev, I.I. Kochijashky and K.D. Danov: Spontaneous detachment of oil drops from solid substrates: governing factors. Journal of colloid and interface science, Vol. 257 (2003), pp.357-363.

DOI: 10.1016/s0021-9797(02)00052-8

[20] P.Y. Wang: Surfactants-Synthesis • Performance • Application (Chemical Industry Press, China 2012).

[21] R.R. Reza, S. Skule and T. Austad: Combined surfactant-enhanced gravity drainage (SEGD) of oil and the wettability alteration in carbonates: the effect of rock permeability and interfacial tension (IFT). Energy&fuels, Vol. 25 (2011).

DOI: 10.1021/ef200085t