Table 3 Hydraulic flow unit (HFU) permeability transform equations and statistical validation using reservoir quality index (RQI).

From: Reservoir characterization and rock typing of the gas-bearing El Wastani Formation, Simian Field, offshore Nile Delta

HFU

Mean RQI

Equation

R2

HFU 1

2.001

Perm = Phi3 * (2.001/(0.0314 * (1-Phi))) 2

0.70

HFU 2

4.159

Perm = Phi3 * (4.159/(0.0314 * (1-Phi))) 2

0.94

HFU 3

7.116

Perm = Phi3 * (7.116/(0.0314 * (1-Phi))) 2

0.98

HFU 4

11.204

Perm = Phi3 * (11.204/(0.0314 * (1-Phi))) 2

0.96

HFU 5

17.853

Perm = Phi3 * (17.853/(0.0314 * (1-Phi))) 2

0.91

HFU 6

63.294

Perm = Phi3 * (63.294/(0.0314 * (1-Phi))) 2

0.87

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