Reservoir parameters

Reservoir types

I

II

III

IV

V

Fractal dimension

2.01 - 2.10

2.10 - 2.29

2.29 - 2.50

2.50 - 2.65

2.65 - 2.80

R₅₀, microns

0.98 - 8.56

0.51 - 4.53

0.21 - 0.82

0.08 - 0.36

0.01 - 0.12

Relative sorting coefficient

0.58 - 0.64

0.64 - 0.7

0.7 - 0.81

0.83 - 0.95

0.96 - 1.31

Permeability to air, mD

62.7 - 817

6.75 - 48.5

1.03 - 4.49

0.15 - 0.65

0.05 - 0.09

Porosity, %

24.6 - 28.1

21.3 - 24.5

20.9 - 23.7

15.8 - 21.3

3.2 - 17.5

Rock type

Rudstone

Grainstone

Packstone

Wackstone

Mudstone

Pore throat radius peak value, microns

2.3 - 6.0

0.4 - 1.1

0.2 - 0.9

0.1 - 0.55

0.08 - 0.22

Correlation coefficient of porosity and permeability

0.46

0.66

0.72

0.54

0.65

Results of classification and evaluation

High quality

Good reservoir

Bad reservoir

Worse reservoir

Invalid reservoir