Table 1 Evaluation criteria of the sedimentary basins potential for the geological sequestration of CO₂.

i = 1

 Seismicity (tectonic environment)

Very high

High

Intermediate

Weak

Very weak

i = 2

 Area

<1000 km²

1000–5000 km²

5000–25,000 km²

25,000–50,000 km²

>50,000 km²

i = 3

 Depth

Very deep (<300 m)

Shallow (300–800 m)

Deep (>3500 m)

Intermediate (800–3500 m)

i = 4

 Deformation

Important

Moderate

Weak

i = 5

 Reservoir-coverage

Weak

Intermediate

Excellent

i = 6

 Geothermal power

Warm basin (>40 °C/km)

Moderate basin (30–40 °C/km)

Cold basin (<30 °C/km)

i = 7

 Potential in hydrocarbons

None

Weak

Average

High

Huge

i = 8

 Evaporites

None

Domes

Beds

i = 9

 Coal

None

Deep (> 800 m)

Shallow (200–800 m)

i = 10

 Exploration Maturity

Not explored

Exploration

Development

Mature

Super mature

i = 11

 On/offshore

In shallow sea

In shallow sea

In shallow sea and inland

Inland

i = 12

 Climate

Arctic

Subarctic

Desertic

Tropical

Temperate

i = 13

 Accessibility

Inaccessible

Difficult

Acceptable

Easy

i = 14

 Infrastructure

None

Minor

Moderate

Important

i = 15

 Sources of CO₂

None

Little

Moderate

Significant

Several