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Open AccessArticle

P-Wave-Only Inversion of Challenging Walkaway VSP Data for Detailed Estimation of Local Anisotropy and Reservoir Parameters: A Case Study of Seismic Processing in Northern Poland

1
Department of Geoinformatics and Applied Computer Science, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, 30-059 Krakow, Poland
2
Department of Fossil Fuels, Faculty of Geology, Geophysics and Environmental Protection, AGH University of Science and Technology, 30-059 Krakow, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Yangkang Chen
Energies 2021, 14(8), 2061; https://doi.org/10.3390/en14082061
Received: 11 February 2021 / Revised: 29 March 2021 / Accepted: 4 April 2021 / Published: 8 April 2021
(This article belongs to the Special Issue Mining Innovation)
In this paper, we present a detailed analysis of walkaway vertical seismic profiling (VSP) data, which can be used to obtain Thomsen parameters using P-wave-only inversion. Data acquisition took place in difficult field conditions, which influenced the quality of the data. Therefore, this paper also shows a seismic data processing scheme that allows the estimation of correct polarization angles despite poor input data quality. Moreover, we showed that it is possible to obtain reliable and detailed values of Thomsen’s anisotropy parameters for data that are challenging due to extremely difficult field conditions during acquisition and the presence of an overburden of salt and anhydrite (Zechstein formation). This complex is known for its strong seismic signal-attenuating properties. We designed a special processing workflow with a signal-matching procedure that allows reliable estimation of polarization angles for low-quality data. Additionally, we showed that P-wave-only inversion for the estimation of local anisotropy parameters can be used as valuable additional input for detailed interpretation of geological media, even if anisotropy is relatively low. View Full-Text
Keywords: anisotropy; VSP; unconventional; hydrocarbon; inversion; polarization; signal processing anisotropy; VSP; unconventional; hydrocarbon; inversion; polarization; signal processing
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MDPI and ACS Style

Zaręba, M.; Danek, T.; Stefaniuk, M. P-Wave-Only Inversion of Challenging Walkaway VSP Data for Detailed Estimation of Local Anisotropy and Reservoir Parameters: A Case Study of Seismic Processing in Northern Poland. Energies 2021, 14, 2061. https://doi.org/10.3390/en14082061

AMA Style

Zaręba M, Danek T, Stefaniuk M. P-Wave-Only Inversion of Challenging Walkaway VSP Data for Detailed Estimation of Local Anisotropy and Reservoir Parameters: A Case Study of Seismic Processing in Northern Poland. Energies. 2021; 14(8):2061. https://doi.org/10.3390/en14082061

Chicago/Turabian Style

Zaręba, Mateusz; Danek, Tomasz; Stefaniuk, Michał. 2021. "P-Wave-Only Inversion of Challenging Walkaway VSP Data for Detailed Estimation of Local Anisotropy and Reservoir Parameters: A Case Study of Seismic Processing in Northern Poland" Energies 14, no. 8: 2061. https://doi.org/10.3390/en14082061

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