Share This Article:

Well test analysis on pressure of viscoelastic polymer solution with variable rheological parameters*

Abstract Full-Text HTML Download Download as PDF (Size:208KB) PP. 1327-1332
DOI: 10.4236/ns.2010.212161    4,575 Downloads   9,130 Views  


According to the behavior that the polymer solution has both the characteristics of viscosity and elastic properties, the transient flow mathe- matical model considered the viscoelasticity of the polymer solution has been established. The model, in which the variation of the rheological parameters during the seepage flow has been also taken into consideration, has been solved using finite-difference method. The type curves have been plotted. The influence of some properties of polymer solution including the viscocity, the elastic properties and the rheological parameters has been analyzed. Compared with the curves of the power-law fluid, it is shown that the pressure derivative curve considering the elasticity of the polymer solution upwarps less at the radial flow regime. Besides, it will come down as the variation of the rheological parameters, which is quite different from the case regarding them as constants. Therefore, in well test analysis on pressure of polymer solution, it’s necessary to consider the elasticity and the variation of the rheological parameters.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Yin, H. , Yang, W. , Meng, S. and Cai, M. (2010) Well test analysis on pressure of viscoelastic polymer solution with variable rheological parameters*. Natural Science, 2, 1327-1332. doi: 10.4236/ns.2010.212161.


[1] Ranjbar, M., Rupp, J., Pusch, G. and Meyn, R. (1992) Quantification and optimization of viscoelastic effects of polymer solutions for enhanced oil recovery. Society of Plastics Engineers, 24154, 521-531.
[2] Wang, W.Y. (1994) Viscoelasticity and rheological property of polymer solution in porous media. Journal of Jianghan Petroleum Institute, 16, 54-57 (in Chinese).
[3] Zhang, Y.L., Li, C.H., Wang, X.M. and Hu, J.B. (1994) The viscoelastic effects of polymer solutions in porous media. Journal of Daqing Petroleum Institute, 18, 139-143 (in Chinese).
[4] Li, H., Cheng L.S. and Zhang S.Y. (2002) Numerical simulation study for improvement of polymer flooding by viscoelastic effect. Petroleum Exploration and Development, 29, 91-93 (in Chinese).
[5] Zhang, L.J., Yue, X.A., Liu, Z.C. and Hou, J.R. (2005) Percolation mechanism of polymer solution through porous media. Journal of University Petroleum (Natural Science Edition), 29, 51-55 (in Chinese).
[6] Yin, H.J., Fu, C.Q. and Lv, Y.P. (2004) An unsteady seepage flow model of viscoelastic polymer solution. Journal of Hydrodynamics, 16, 209-215(in English)
[7] Cao, R.Y., Cheng, L.S., Hao B.Y., Gao, H.H. and Yao, D.W. (2007) Mathematical model of viscous-elastic polymer solution seepage. Journal of Xi’an Shiyou University (Natural Science Edition), 22, 107-109(in Chinese).
[8] Xia, H.F., Yue, X.A., Cao, G.S. and Zhang, S.F. (2000) Rheological behavior of polymer solution in the course of seepage flow. Journal of Daqing Petroleum Institute, 24, 26-29 (in Chinese).
[9] Wang, X.H. and Zhao, G.P. (1998) Shear rate of power-law fluid through porous media. Xinjiang Petroleum Geology, 19, 312-314(in Chinese).
[10] Xia, H.F. (2002) The theory and application of polymer solution with visco elastic behavior. Petroleum Industry Press, Beijing, 97-101(in Chinese).

comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.