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Skin-factor

Created by Rushana Farakhova, last modified by Arthur Aslanyan (Nafta College) on Aug 19, 2018

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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:

(1)	$\begin{array}{l}\displaystyle S = \bigg ( \frac{k}{k_s} - 1 \bigg ) \ \ln \big ( \frac{r_s}{r_w} \big )\end{array}$

Motivation

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