GLOSSARY

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Expand
titleBy oil density




Light crudeMedium oilHeavy crudeExtra heavy crude
kg/m3< 870870 – 920920 – 1000> 1000
API> 31.1°22.3° – 31.1°10° – 22.3°< 10°





Expand
titleBy mobility



High perm

Medium perm

Low perm

Shale


> 100 md10 md  ÷ 100 md0.1 md ÷ 10 md< 0.1 md
Gas



Gas condensate



Light oil



Oil
x




Heavy oil
x
x




Bitumen
xxx
Red crosses x indicate reservoir





where gray boxes mean:

Reservoir-fluid combinations which are currently not exploited by Petroleum Industry
.

and red boxes mean:

Unconventional reserves 



Expand
titleBy reservoir homogeneity


MatrixFissuredFracturedFaultedCompartmentalized


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