We take five parameters describing the properties of rocks (drillability, abrasive resistance, hardness, plasticity, and compressive strength) as the initial factors used for principal component analysis. Using this method, we obtained two principal components and composite scores, which we then treated using cluster analysis. These operations allow us to make a comprehensive evaluation of all 20 strata in the Dagang oil field (China). The results show that the 20 strata can be divided into four groups, which can provide a basis for drill bit selection and drilling design in the Dagang oil field.
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 50 – 53, November – December, 2014.
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Zhang, Y., Zhai, Yh., Sun, Tf. et al. Practical Application of a Combination of Principal Component Analysis and Cluster Analysis to Evaluate the Parameters of Layered Heterogeneous Formations in Dagang Oil Field. Chem Technol Fuels Oils 50, 525–532 (2015). https://doi.org/10.1007/s10553-015-0559-z
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DOI: https://doi.org/10.1007/s10553-015-0559-z