Abstract
In this work, a method for well log data classification is presented. The method relies on a coordinate transformation to restructure the data in an optimal way and a quasi-probabilistic interpolation technique capable of smoothing noisy data. The approach does not require case-specific design, is computationally efficient and provides a statistical characterization of the classification problem. Consequently, transition zones between facies can be modelled in a realistic fashion and intermediate rock types can be identified with ease. Apart from being capable of classifying unseen data with high accuracy, the technique can also be used as an informative quality and consistency assessment tool for manually classified data. The properties of the method are demonstrated on a realistic test case study.
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Acknowledgements
The author would like to thank Total E&P UK for permission to publish this work. Additional thanks go to Yan Chen, Fahmi Bahrini and Nick Hayward for providing valuable input, feedback and discussions.
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Kostorz, W. A practical method for well log data classification. Comput Geosci 25, 345–355 (2021). https://doi.org/10.1007/s10596-020-10011-4
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DOI: https://doi.org/10.1007/s10596-020-10011-4