| Issue |
E3S Web of Conferences
Volume 24, 2017
AG 2017 - 3rd International Conference on Applied Geophysics
|
|
|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 8 | |
| Section | Properties of soil, rock and rock mass | |
| DOI | https://doi.org/10.1051/e3sconf/20172402002 | |
| Published online | 20 November 2017 | |
Comparative analysis of rock porosity in a selected region in the Carpathians based on laboratory data and well logs
1
Mineral and Energy Economy Research Institute, Polish Academy of Sciences, 31-261 Krakow, Poland
2
AGH University of Science and Technology, 30-059 Krakow, Poland
* Corresponding author: maciej.michal.barnas@gmail.com
A comparative analysis of porosity is presented in the article. This was calculated from laboratory measurements and well logs for rocks from a selected region of the Carpathians. Analysis was performed for samples of sandstones, mudstones, shales and carbonates from four boreholes drilled in the Carpathian Foredeep region near Krakow, Poland. In laboratory measurements, porosity was assessed using two methods: helium pycnometry and nuclear magnetic resonance (NMR). Porosity from well logging was calculated from sonic profiling (SPHI). Cross-plots were used, which allowed for the assessment of the degree of correlation between the laboratory and well log data. The results obtained were analysed paying special attention to the relationship with geological structure. Based on the lithological criterion, the correlations turned out to be strong. The repeatability of the results obtained in different wells was verified. The results of the measurements are significant in relation to estimating porosity from well logs using laboratory data.
© The Authors, published by EDP Sciences
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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