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tight gas

Learn about this topic in these articles:

unconventional gas source

In natural gas: Tight gas
Tight gas occurs in either blanket or lenticular sandstones that have an effective permeability of less than one millidarcy (or 0.001 darcy, which is the standard unit of permeability of a substance to fluid flow). These relatively impermeable sandstones are reservoirs for considerable…
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