11-06-2022 | Technical Note
Fractal Characteristics of Drilling Particle Size Distribution of Shale: A Laboratory Scale Investigation
Published in: Rock Mechanics and Rock Engineering | Issue 8/2022
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Highlights
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The fractal particle size distribution (PSD) theory is used to characterize the particles produced in shale drilling.
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Fractal dimension comprehensively reflects the characteristic particle size and features of the distribution of the drilling PSD.
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Wear effect produces nano-particles with a volume of ~1.88–3.76% during the particles transport process which increases the dissipation of drilling energy.
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Higher rotation rate increases the proportion of coarse particles and is conducive to reducing wear effect.