Development of adsorption ratio equation and state equation of liquid and their geological significance

Junqian Li

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There have been many theories to describe adsorbed or free gas. However, quantitative description of the occurrence characteristics of liquids in porous media has always been a great challenge due to a lack of basic theory. Through years of research, two theoretical equations, i.e., adsorption ratio equation and state equation of liquid, have been proposed to describe the characteristics of liquids in porous media, and revealed the mechanism of liquid occurrence. Further, a quantitative evaluation technology for the microscopic distribution of liquids was established by combining nuclear magnetic resonance theory. This research will be of great significance for studying the microscopic distribution of liquids in tight reservoirs, such as shale, coal, and tight sandstone.

Cited as: Li, J. Development of adsorption ratio equation and state equation of liquid and their geological significance. Capillarity, 2021, 4(4): 63-65, doi: 10.46690/capi.2021.04.01


Adsorption ratio equation, state equation of liquid, porous media, shale

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Abda, A. S., Elhafyana, E., Siddiquia, A. R., et al. A review of the phenomenon of counter-current spontaneous imbibition: Analysis and data interpretation. Journal of Petroleum Science and Engineering, 2019, 180: 456-470.

Gasparik, M., Ghanizadeh, A., Bertier, P., et al. High-pressure methane sorption isotherms of black shales from the Netherlands. Energy & Fuels, 2012, 26: 4995-5004.

Gensterblum, Y., Hemert, P. V., Billemont, P., et al. European inter-laboratory comparison of high pressure CO2 sorption isotherms II: Natural coals. International Journal of Coal Geology, 2010, 84(2): 115-124.

Li, J., Lu, S., Cai, J., et al. Adsorbed and free oil in lacustrine nanoporous shale: A theoretical model and a case study. Energy & Fuels, 2018, 32(12): 12247-12258.

Li, J., Lu, S., Zhang, P., et al. Estimation of gas-in-place content in coal and shale reservoirs: A process analysis method and its preliminary application. Fuel, 2020a, 259: 116266.

Li, J., Lu, S., Zhang, P., et al. Quantitative characterization and microscopic occurrence mechanism of pore water in shale matrix. Acta Petrolei Sinica, 2020b, 41(8): 979-990. (in Chinese)

Li, J., Wang, S., Lu, S., et al. Microdistribution and mobility of water in gas shale: A theoretical and experimental study. Marine and Petroleum Geology, 2019, 102: 496-507.

Peng, D. Y., Robinson, D. B. A new two constant equation of state. Industrial and Engineering Chemistry Research Fundamentals, 1976, 15: 59-64.

Pozo, M., Pino, D., Bessieres, D. Effect of thermal events on maturation and methane adsorption of Silurian black shales (Checa, Spain). Applied Clay Science, 2017, 136: 208-218.

Tait, P. G. Physics and chemistry of the voyage of H. M. S. challenger, Vol. 2, Part 4. London, UK, HMSO, 1888.

Tian, H., Li, T., Zhang, T., et al. Characterization of methane adsorption on overmature Lower Silurian–Upper Ordovician shales in Sichuan Basin, southwest China: Experimental results and geological implications. Inter-national Journal of Coal Geology, 2016, 156: 36-49.

van der Waals, J. D. Over de Continuiteit van den Gasen Vloeistoftoestand (On the continuity of gaseous and liquid states). Leiden, University of Leiden, 1873.

Xiong, F., Rother, G., Gong, Y., et al. Reexamining supercritical gas adsorption theories in nano-porous shales under geological conditions. Fuel, 2020, 287(44): 119454.


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