Data Preprocessing and Its Influence on the Adsorption Capacity of Calculated Shale. Comparison of Selected Methods: A Case Study

Open access


This article discusses the impact of choosing a data preprocessing method for the calculated gas density necessary to determine the sorption capacity of a material. The sample of gas-bearing shale was subjected to a volumetric sorption test. The obtained data, pressure and temperature were preprocessed by three methods: moving average, polynomial regression and locally weighted scatterplot smoothing. The results include the excess and absolute sorption calculated from data that were filtered, and data without pre-treatment and Langmuir isotherms’ coefficients for every case.

Ambrose, R. J., Hartman, R. C., Diaz-Campos, M., Yucel Akkutlu, I., & Sondergeld, C. H.. (New pore-scale considerations for shale gas in place calculations SPE Unconvencional Gas Conference, SPE 131722

Bush, A., & Gensterblum, U. (2011). CBM and CO2-ECBM related sorption processes in coal. A review. International Journal of Coal Geology, 87(2), 49-71. DOI: 10.1016/j.coal.2011.04.011.

Harpalani, S., Prusty, B. K., & Dutta, P. (2006). Methane/CO2sorption modelling for coalbed methane production and CO2sequestration. Energy & Fuels, 20, 1591-1599. DOI: 10.1021/ef050434l.

Khosrokhavar, R. (2016). Mechanism for CO2sequestration in geological formations and enhanced gas recovery, Springer International Publishing Switzerland

Kroos, B. M., Van Bergen, F., Gensterblum, Y., Siemons, N, Pagnier, H. J. M., & David, P. (2002). High pressure methane and carbon dioxide adsorption on dry and moisture equiliobrated Pennsylvanian coals. International Journal of Coal Geology, 74, 69-92. DOI: 10.1016/S0166-5162(02)00078-2.

Lutyński, M. A., Battistutta, E., Bruining, H., & Wolf, K. A. A. (2011). Discrepancies in the assessment of CO2storage capacity and methane recovery from coal with selected equations of state Part I. Experimental isotherm calculation. Physicochemical Problems of Mineral Processing, 47, 159-168.

Lutyński, M. A., & Gonzalez Gonzalez, M. A. (2016). Assessment of the total CO2storage capacity of shales - upscaling from sorption and reservoir data. 35thInternational Geological Congress 31STaugust 2016, Cape Town, South Africa.

Lutyński, M. A. (2014). Impact of preparation and storage of activated carbon on the high pressure sorption of CO2. Buletin of Polish Academy of Sciences, 62, 113-119.

Lutyński, M. A., & Gonzalez Gonzalez, M. A. (2016). Total gas in-place calculations for the Baltic-Podlasie- Lublin basin shales in Poland. E3S Web Conference. Mineral Engineering Conference MEC2016, Volume 8, 01053. DOI: 10.1051/e3sconf/20160801053.

Rexer, T., Mathia, E., Aplin, A. C., & Thomas K. M. (2014). High-pressure methane adsorption and characterization of pores in Posidonia Sales and isolated kerogens. Energy & Fuels, 28, 2886-2901. DOI: 10.1021/ef402466m.

Sakurovs, R., Day, S., Weir, S., & Duffy, G. (2007). Application of a Modified Dubinin−Radushkevich Equation to Adsorption of Gases by Coals under Supercritical Conditions. Energy & Fuels, 21(2), 992-997. DOI: 10.1021/ef0600614.

Van Hemert, P., Bruining, H, Rudolph, E. S. J., Wolf K, H. A., & Maas, J. G. (2009). Improved manometric setup for the accurae determination of supercritical carbon dioxide sorption. Review of Scientific Instruments, 80(3), 035103. DOI: 10.1063/1.3063064.


The Journal of Mineralogical Society of Poland

Journal Information

CiteScore 2017: 0.82

SCImago Journal Rank (SJR) 2017: 0.272
Source Normalized Impact per Paper (SNIP) 2017: 0.342


All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 46 46 16
PDF Downloads 20 20 8