Shale Gas Pros/cons

Question 1

Shale gas

Answer 1

Natural gas trapped in shale deposits
Mainly methane
Usually low permeability
Brittle and rigid enough to maintain open fractures

Question 2

Quartz rich shale compared to clay rich difference

Answer 2

Quartz rich - brittle
Clay rich - ductile

Question 3

How do we get shale gas from ground

Answer 3

Hydraulic fracturing
Horizontal drilling

Question 4

Main issues

Answer 4

Air pollution (Methane leaks)
Wastewater
Casing leaks(chemicals seeping out of fracking pipes)
Earthquakes
Underground migration(could link natural fractures in rock)