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Dimensionless value characterising the permeability change in a thin layer around the well cased by stimulations or deteriorations, represented by Hawkins' equation:
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S = \bigg ( \frac{k}{k_s} - 1 \bigg ) \ \ln \big ( \frac{r_s}{r_w} \big ) |
Motivation
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При бурении и освоении скважины призабойная зона пласта подвергается поражению в зоне
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