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Abstract

Summary

The article considers the concept of the rock brittleness index, which has become widely used in the design of hydraulic fracturing. An analysis of the main approaches to its calculation is given - mineralogical, using elastic properties, using logging data. Within each of the approaches, the main methods of calculation are considered. For the mineralogical approach, this includes methods for rocks with different mineral composition. For the elastic approach, this includes methods using elastic moduli and mechanical parameters. For the logging approach, this includes empirical dependencies for individual formations. For a set of core samples of terrigenous rocks from the Dnipro-Donetsk basin, the mineralogical brittleness index using the main petrogenic components and the elastic brittleness index using Young’s modulus and Poisson’s ratio were determined. Conducting a comparative characterization of the results obtained with different methods showed the similarities in trends regarding lithology and petrophysical properties of rocks.

EAGE Publications BV © 2023 The Authors © European Association of Geoscientists and Engineers
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2023-11-07
2025-03-17

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References

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/content/papers/10.3997/2214-4609.2023520187
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Optimal Methods of Brittleness Index Calculation for Terrigenous Rocks of the Dnipro-Donetsk Basin
Conference Proceedings 2023, 1 (2023); https://doi.org/10.3997/2214-4609.2023520187
/content/papers/10.3997/2214-4609.2023520187
/content/papers/10.3997/2214-4609.2023520187
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