The Relationship of Ultra-Low Permeability Sandstone Aspect Ratio With Porosity, Permeability

WEI Haoguang, MA Kun, YUE Xiang’an, WANG Xinxin


The ultra-low permeability sandstone reservoir has large aspect ratio which significantly influences the multi-phase percolation characteristic. The ratio could be accurately measured by rate-controlled mercury porosimetry, but the testing technology is expensive, time-consuming and core-contaminating. There is not a simple effective method to describe the aspect ratio. The pores of the ultra-low permeability sandstone are mainly connected by the very long narrow throats, which could be advantageously simulated by the compound capillary bundles model. The analytical expressions of porosity and permeability about major pore structure parameters are established based on the model for the tight porous media. After solving the two expressions, the relationship between aspect ratio and parameter combination of porosity, permeability is obtained for the ultra-low permeable sandstone. Then the relation is fitted in this article using many previous published rate-controlled mercury data on compact sandstone and the relevance is strong, which proves that aspect ratio of tight rock is able to be calculated with its porosity and permeability.
Key words: Ultra-low permeability sandstone; Aspect ratio; Pore; Throat; Porosity; Permeability


Ultra-low permeability sandstone; Aspect ratio; Pore; Throat; Porosity; Permeability

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[1] Dullien, F. A. L. (1979). Porous media-fluid transport and pore structure. San Diego, California: Academic Press.

[2] Edward, L. E., David, S. B., Robert, E., et al. (1988). Relations between pores, throats and permeability: A petrographic/physical analysis of some carbonate grainstones and packstones. Carbonates and Evaporites, 3(1), 17-32.

[3] Yang, Z. M., Zhang, Y. Z., Hao, M. Q., et al. (2006). Comprehensive evaluation of reservoir in low-permeability oilfields. Acta Petroiei Sinica, 27(2), 64-67.

[4] Chatzis, I., Morrow, N. R., & Lim, H. T. (1983). Magnitude and detailed structure of residual oil saturation, SPE J, 23(2), 311-326.

[5] Li, Y., & Wardlaw, N.C. (1986). The influence of wettability and critical pore-throat size ratio on snap-off. Journal of Colloid and Interface Science, 109(2), 461-472.

[6] Mogensen, K., & Stenby, E. H. (1998). A dynamic two-phase pore-scale model of imbibition. Transport in Porous Media, 32(3), 299-327.

[7] Cerepi, A., Durand, C., & Brosse, E. (2002). Pore microgeometry analysis in low-resistivity sandstone reservoirs. Journal of Petroleum Science and Engineering, 35(3), 205-232.

[8] Li, Z. Q., Hou, J., Cao, X. L., et al. (2005). Microscopic simulation for influence of microscopic reservoir parameters on remaining oil distribution. Acta Petroiei Sinica, 26(6), 69-73.

[9] Mahmud, W. M., & Nguyen, V. H. (2006). Effects of snap-off in imbibition in porous media with different spatial correlations. Transport in Porous Media, 64(3), 279–300.

[10] Gao, H. M., Jiang, H. Q., & Chen, M. F. (2007). Simulation study on the effect of the microscopic parameters of reservoir pore structure on oil-water relative permeability. Journal of Xi’an Shivou University: Nature Science Edition, 22(2), 56-59.

[11] León y León, C. A. (1998). New perspectives in mercury porosimetry. Adcances in Colloid and Interface Science, 76, 341-372.

[12] Aguilera, R. (2002). Incorporating capillary pressure, pore throat aperture radii, height above free-water table, and winland r35 values on Pickett plots. AAPG Bulletin, 86(4), 605-624.

[13] Teige, G. M. G., Hermanrud, C., Thomas, W. L. H., et al. (2005). Capillary resistance and trapping of hydrocarbons: A laboratory experiment. Petroleum Geoscience, 11(2), 125-129.

[14] Yuan, H. H., & Swanson, B. F. (1989). Resolving pore-space statistics and capillary by rate controlled porosimetry. Society of Petroleum Engineers Formation Evaluation, 4(1), 17-24.

[15] Wang, R. F., Shen, P. P., Song, Z. Q., et al. (2009). Characteristics of micro-pore throat in ultra-low permeability sandstone reservoir. Acta Petroiei Sinica, 30(4), 560-563, 569.

[16] Nelson, P. H. (2009). Pore-throat sizes in sandstones, tight sandstones, and shales. AAPG Bulletin, 93(3), 329-340.

[17] Wang, R. F. (2007). Research on microcosmic characteristics and quality evolution in low permeability sandstone reservoir (Doctoral dissertation). Northwest University, China.

[18] Xie, W. (2008). A study on micro-pore structure and infiltrating mechanism of Chang-8 reservoir in Qingyang area Xifeng oilfield (Doctoral dissertation). Northwest University, China.

[19] Mao, C. L. (2006). Evaluation on characteristics of deltaic front sand bodies of Gao-Tai-Zi Reservoir in Changling depression, southen Songliao basin (Doctoral dissertation). China University of Geosciences, China.

[20] Gao, H. (2009). Research on micro-pore structure and micro-flow mechanism of ultra-low permeability sandstone reservoir (Doctoral dissertation). Northwest University, China.

[21] Guo, Q. (2008). A study on micro-pore structure and infiltrating mechanism in Niuquanhu area of Santanghu oilfield as an example to Qigu group and Toutunhe group (Doctoral dissertation). Northwest University, China.

[22] Luo, Z. T., & Wang, Y. C. (1986). Pore structure of hydrocarbon reservoir. Beijing: Science Press.

[23] Fatt, I. (1956). The network model of porous media I. Capillary pressure characteristics Petroleum Transactions. AIME, 207(7), 144-177.

[24] Yang, Y. L., & Aplin, A. C. (1998). Influence of lithology and compaction on the pore size distribution and modelled permeability of some mudstones from the Norwegian margin. Marine and Petroleum Geology, 15(2), 163-175.

[25] Chen, S., & Doolen, G. D. (1998). Lattice Boltzmann method for fluid flows. Annual Review of Fluid Mechanics, 30(1), 329-364.



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