>SHALE GAS: Small footprint …big impression!

1. What is shale gas?
2. Shale gas in the US: Long forays g g ys in a short time
3. Shale gas reserves in other parts of the world
4. Major Implications
5. Foray of RIL in this space: Opportunities and implications
6. Annexure

1.a. What is shale gas?
■ Shale are fine-grained sedimentary rocks comprising of mud (mix of clay mineral flakes) and small fragments of other minerals

■ Shale gas is produced from shale formations, which act as both reservoir as well as source rocks.

■ Shale tends to have lower recovery than conventional plays e.g., shale plays in Marcellus are estimated to yield only 3-12% of total organic carbon.

■ Every shale is different so each shale has its own learning curve in terms of extraction technology and corresponding operational and break-even costs.

■ Shale gas production was considered uneconomic earlier because of low permeability and gas content.

■ Emergence of a new drilling technology in the 1990s and higher natural gas prices made shale gas viable

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