6.11. Placement of Unconventional Gas in the Energy Picture
This section is aimed at developing a protocol for scientific characterization of unconventional gas. Instead of following conventional protocol of delineating reservoirs based on permeability, a new approach is taken. In this, US reserves are used as a prototype and USGS report (2008) on US reserve growth is used as starting point. Both siliciclastic (largely sandstone) and carbonate (limestone and dolomite) reservoirs in North America are considered. Initial division is made based on geological environment, namely:
1. Eolian environments (Jurassic Norphlet Formation of the Gulf Coast and Pennsylvanian–Permian Minnelusa Formation of the Powder River Basin);
2. Interconnected fluvial, deltaic, ...
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