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Panel
10° ÷ 20.7
Expand
titleBy petroleum density at surface
Expand
titleBy petroleum mobility [old]



Specific Gravity *API Gravity

High perm

Medium perm

Low perm

Tight (Shale)

fracAPI> 100 md10 md  ÷ 100 md0.1 md ÷ 10 md< 0.1 mdGas< 0.702 *> 70° Condensate0.702 ÷ 0.80245° ÷ 70°Light Oil

0.802 ÷ 0.87

31.1° ÷ 45°Medium Oil0.87 ÷ 0.9320.7° ÷ 31.1°Heavy Oil0.93 ÷ 1.0

GasCondensateLight oilMedium OilHeavy OilExtra Heavy Oil (Bitumen)
kg/m3< 702*702 ÷ 801801 ÷ 870870 ÷ 920920 ÷ 1000> 1000
API> 70°45° ÷ 70°45° ÷ 31.1°22.3° ÷ 31.1°10° ÷ 22.3°4° ÷ 10°
Panel
°
Extra Heavy Oil (Bitumen)
1.0 ÷ 1.04
4° ÷ 10°


* – with reference to air.
where box colours mean:

Conventional ReservesUnconventional Reserves Unrecoverable Reservesand the ranges of properties in the table are only tentatively define the category based on the industry statistics and conventions, which vary over history and locations

.

Panel
Expand
titleBy petroleum mobility

Dynamic fluid viscosity

High perm

Medium perm

Low perm

Tight (Shale)


cP> 100 md10 md  ÷ 100 md0.1 md ÷ 10 md< 0.1 md
Light Oil< 1



Medium Oil

1 ÷ 10





Heavy Oil10 ÷ 100



Extra Heavy Oil100 ÷ 10,000



Bitumen> 10,000




where box colours mean:

Conventional ReservesUnconventional Reserves Unrecoverable Reserves

and the ranges of properties in the table are only tentatively define the category based on the industry statistics and conventions, which vary over history and locations.

Panel
Expand
titleBy oil-water relative mobility ratio
Water extra mobileWater more mobileSame mobilityOil more mobileOil extra mobile
>55 ÷ 1.50.5 ÷ 1.50.2 ÷ 0.5<0.2
Panel
Expand
titleBy sulfur content



Sweet crudeSour crude
Sulfur  < 0.5%Sulfur  > 0.5%



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