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Seismic attributes for hydrocarbon detection and reservoir characterization: a case study from Poseidon field, Northwestern Australia

  • 3rd CAJG 2020
  • Published:
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Abstract

Over the past decades, seismic attributes are applied successfully in hydrocarbon detection and reservoir characterization in several world sedimentary basins. In this study, seismic attributes are applied on seismic data from the Northwestern Australian field to detect hydrocarbon-saturated sandstone reservoirs. The targeted Plover Formation encompasses three intervals of gas-saturated sandstones interbedded with shale and siltstone. Due to the geological complexity of the area (tectonic and stratigraphy), the sands are not easy to track and delineate in seismic attributes. The list of attributes used includes frequency components derived from spectral decomposition, and different amplitude components derived from the amplitude decomposition. Images from spectral decomposition and amplitude decomposition have helped in detecting the gas reservoirs and showed that they are different in thickness. The amplitude and frequency components are then combined into one attribute. The resulting attribute allowed better detection and delineation of the reservoirs. The results from the above interpretations, along with information from petroleum system analysis, were used to identify other prospective zones in the area and propose them as potential drilling targets.

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Acknowledgements

We would like to thank dGB Earth Sciences for providing OpendTect software, CGG for providing HampsonRussell software, and Geoscience Australia for providing the data used in the study.

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Correspondence to Mohammed Farfour.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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Responsible Editor: Narasimman Sundararajan

This paper was selected from the 3rd Conference of the Arabian Journal of Geosciences (CAJG), Tunisia 2020

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Farfour, M., El-Ghali, M.A.K., Gaci, S. et al. Seismic attributes for hydrocarbon detection and reservoir characterization: a case study from Poseidon field, Northwestern Australia. Arab J Geosci 14, 2814 (2021). https://doi.org/10.1007/s12517-021-08853-y

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  • DOI: https://doi.org/10.1007/s12517-021-08853-y

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