Parameter type

Parameter name

Weight

Value

1.0 - 0.75

0.75 - 0.5

0.5 - 0.25

0.25 - 0

Quality of shale 0.3

Thickness of

shale (m)

0.1

>40

40 - 30

20 - 30

10 - 20

TOC (%)

0.3

>4

4-2

2-1

<1

Kerogen type

0.1

I

II1

II2

III

Ro

0.1

1.2 - 2.5

1.0 - 1.2; 2.5 - 3.0

0.7 - 1.0; 3.0 - 3.5

0.4 - 0.7; 3.0 - 4.0

Brittleness

index (%)

0.3

>60

60 - 40

40 - 20

<20

Physical properties (%)

0.1

>6

6 - 4

4 - 2

<2

Storage Conditions

0.4

Fracture development

0.2

not developed

less developed

rather developed

developed

Structural styles

0.1

Wrinkle relief

Wrinkle with rather relief

Wrinkle is rather clench

Wrinkle clench

pressure coefficient

0.4

>1.5

1.5 - 1.2

1.2 - 1.0

<1.0

Cover

0.1

Jurassic-Cretaceous

Triassic

Permian

Silurian

Roof and floor

0.2

Extremely dense

Dense

Rather dense

Not dense

Economic

0.3

depth of burial (m)

0.2

1500 - 3500

3500 - 4500

>4500/500 - 1500

0 - 500

Amount of resources (100 million cubic)

0.2

>500

200 - 500

100 - 200

<100

Production (10⁴ cubic/km)

0.2

≥10

3 - 10

0.3 - 3

＜0.3

Surface topographical conditions

0.1

Hilly area+ plain > 75%

Hilly area+ plain 50% - 75%

Middle-low

In mountainous areas

Dominated by mountains, plateaus, and swamps

River system

0.1

Development of rivers, reservoirs

Rivers is rather developed and near the reservoir

Water system is only with a river

No major rivers

Marketing Network

0.1

Have pipe networks

Near pipe network

Be to have pipe network

Market

is not developed

Traffic

0.1

State, provincial coverage

half provincial covers

County-level roads

With inconvenient transportation