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RQI – Rock Quality Index

Created by Arthur Aslanyan (Nafta College) on Jun 28, 2018

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$\begin{array}{l}\displaystyle RQI=0.0314 \sqrt \frac{k}{\phi}\end{array}$

where $\begin{array}{l}k\end{array}$ – absolute permeability to air, $\begin{array}{l}\phi\end{array}$ – effective porosity.

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