Gas Storage Reservoir

Gas storage reservoir—The portion of a subsurface geologic formation or rock strata used for or being tested for storage of natural gas that:

  1. Has sufficient porosity and permeability to allow gas to be injected or withdrawn, or both.
  2. Is bounded by strata of insufficient porosity or permeability, or both, to allow gas movement out of the reservoir.
  3. Contains or will contain injected gas geologically or by pressure control.

Source: Oil and Gas Wells, Pennsylvania Code, Title 25, Chapter 78, December 2012. Regulations

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