Ranges of Common Intrinsic Permeabilities
These values do not depend on the fluid properties; see the table derived from the same source for values of hydraulic conductivity, which are specific to the material through which the fluid is flowing.
| Permeability | Pervious | Semi-Pervious | Impervious | ||||||||||
| Unconsolidated Sand & Gravel | Well Sorted Gravel | Well Sorted Sand or Sand & Gravel | Very Fine Sand, Silt, Loess, Loam | ||||||||||
| Unconsolidated Clay & Organic | Peat | Layered Clay | Unweathered Clay | ||||||||||
| Consolidated Rocks | Highly Fractured Rocks | Oil Reservoir Rocks | Fresh Sandstone | Fresh Limestone, Dolomite | Fresh Granite | ||||||||
| κ (cm2) | 0.001 | 0.0001 | 10−5 | 10−6 | 10−7 | 10−8 | 10−9 | 10−10 | 10−11 | 10−12 | 10−13 | 10−14 | 10−15 |
| κ (millidarcy) | 10+8 | 10+7 | 10+6 | 10+5 | 10,000 | 1,000 | 100 | 10 | 1 | 0.1 | 0.01 | 0.001 | 0.0001 |
Source: modified from Bear, 1972
Read more about this topic: Permeability (earth Sciences)
Famous quotes containing the words common and/or intrinsic:
“If we use common words on a great occasion, they are the more striking, because they are felt at once to have a particular meaning, like old banners, or everyday clothes, hung up in a sacred place.”
—George Eliot [Mary Ann (or Marian)
“The truth is that literature, particularly fiction, is not the pure medium we sometimes assume it to be. Response to it is affected by things other than its own intrinsic quality; by a curiosity or lack of it about the people it deals with, their outlook, their way of life.”
—Vance Palmer (1885–1959)