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| Hlavní autoři: | , , , |
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| Médium: | Recurso digital |
| Jazyk: | angličtina |
| Vydáno: |
Zenodo
2025
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| Témata: | |
| On-line přístup: | https://doi.org/10.5281/zenodo.16814401 |
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- <p><span>This study aims to validate models developed for predicting true resistivity and water saturation in<br>drainage capillary pressure and formation resistivity index (PcRI) measurements using porous plate methodology.<br>The true resistivity model enables the calculation of the time required to reach equilibrium for these key parameters.<br>To validate the petrophysical resistivity model, an extensive database was used, comprising over 12,500 data points<br>collected from sandstone and carbonate rocks analysed under various fluid systems, including crude oil/water,<br>laboratory oil/water, and gas/water. The true resistivity and water production models reliably estimated true<br>resistivity and water saturation as a function of time for both rock types. Based on transient drainage PcRI data, the<br>models can predict equilibrium true resistivity and water production, significantly reducing measurement time and<br>accelerating PcRI measurements by up to 63% in some cases. This optimization improves analysis timing and<br>facilitates data interpretation, making the models as an important tool for enhancing efficiency in laboratory PcRI<br>analysis. These models also have practical applications in monitoring and controlling the quality of transient<br>drainage PcRI data. Additionally, they support the interpretation and validation of results, ensuring a more reliable<br>and robust petrophysical evaluation.</span> </p>