Laboratory Experiment on Inaccessible Pore Volume of Polymer Flooding

Yiqi ZOU, Zijuan CAO, Erlong YANG


The research on inaccessible pore volume is completed on the basis of laboratory experiments. The experiment prepared 4 different kinds of polymers, whose molecular weight are 8 million, 12 million, 16 million and 20 million whose molecular coil size are measured by light blockage counter. Through kerosene mass method we can get pore cumulative distribution of field cores and finally plot the relation between the inaccessible pore volume and molecular coil size of polymer. The size of small pore where primary water was taken as the minimum number polymer coils can be passed. Then the polymer molecular weight with better compatibility with rock pores is optimized.
The study shows with the increase of polymer relative molecular mass, pore volume increased linearly. The conclusion can better guide the selection of the polymers in practical production.



Inaccessible pore volume; Kerosene mass method; Light blockage counter; Polymer relative molecular mass

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Kolodziej, E. J. (1988). Transport mechanisms of xanthan biopolymer solution in porous media (pp.369-384). SPE 18090.

Li, J., Liu, Y. J., & Guo, S. L., et al. (2008). A method for calculating inaccessible pore volume of polymer. Petroleum Geology and development of Daqing, 27(1), 114-117.

Miao, J. S., Li, S., & Xu, T., et al. (2004). Experimental study on inaccessible pore volume of the formation polymer in the three oil recovery process. Henan Petroleum, 18(6), 37-39+83.

Sun, Y. L., Qian, X. L., & Wu, W. H. (2006). Research progress of polymer flooding technology. Advances in Fine Petrochemicals, 7(2), 26-29.

Tang, E. G., Zhang, X. S., & Yang, J. R., et al. (2009). The effect of inaccessible pore volume on the flow of polymer solution in porous media. Petroleum Geology and Recovery Efficiency, 16(4), 80-82.

Wang, Y. M., Wang, J. Y., & Kang, H. Q., et al. (2013). Establishment and application of a prediction model for enhanced oil recovery in polymer flooding. Acta Petrolei Sinica, 34(3), 513-517.

Wu, J. W., Song, K. P., & Wang, W., et al. (2007). Study on inaccessible pore volume of polymer flooding in well LA 8-182. Drilling & Production Technology, 30(3), 96-98+153.

Xu, T., Li, X. S., & Mo, W. L., et al. (2004). Study on the influencing factors of the pore volume of the polymer. Journal of Petroleum University (Natural Science Edition), 28(3), 56-59+140.



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