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Upgrading Of Carbonate Classifications By Digital Image Analysis And Multivariate Statistics
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, First EAGE Workshop on Evaluation and Drilling of Carbonate Reservoirs, Oct 2017, Volume 2017, p.1 - 5
Abstract
Summary
Carbonate classifications and petrophysical rock typing are popular in reservoir characterization, core-log-calibration, seismic inversion, and petrophysical modeling for reservoir simulation. They rely on visual comparison charts and semi-quantitative estimations. This paper outlines the potentials of advanced digital image analysis tools in combination with agglomerative hierarchical cluster analysis (AHC) to define rock types. This approach has been tested in a tight oil reservoir using more than 500 petrophysical plug measurements and petrographic thin section analyses from 6 wells. The case study resulted in 11 rock types, which clearly seperate in terms of porosity, permeability and density.
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