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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 md
Gas< 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 ÷ 1.010° ÷ 20.7°



Extra Heavy Oil (Bitumen)1.0 ÷ 1.044° ÷ 10°



* – with reference to air.

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
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titleBy petroleum mobility

Fluid viscosity

High perm

Medium perm

Low perm

Tight (Shale)


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




Light Oil






Medium Oil




Heavy Oil




Extra Heavy Oil (Bitumen)





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.

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