Skip to main content

About unconventional gas

Unconventional gas is used as collective term to describe tight gas, shale gas and coal bed methane (CBM).

Types of unconventional gas

Natural gas deposits are categorized as conventional if they are contained in porous reservoirs, often in limestone or sandstone, which have interconnected spaces that allow the gas to flow freely in the rock and through well boreholes. Unconventional reserves are situated in rocks of low permeability, which makes the gas difficult to access.