Earth & Environmental Sciences
shale gas
81%
gas reservoir
77%
hydraulic fracturing
56%
well
25%
gas supply
24%
economic viability
24%
multiphase flow
21%
crushing
20%
reservoir rock
20%
gas production
19%
diagenesis
18%
compaction
17%
natural gas
16%
protocol
16%
shale
15%
market
14%
permeability
13%
science
12%
demand
12%
engineering
12%
coast
11%
resource
10%
gas
9%
energy
9%
simulation
8%
effect
4%
method
4%
Engineering & Materials Science
Shale gas
100%
Proppants
49%
Hydraulic fracturing
46%
Low permeability reservoirs
27%
Gas supply
24%
Multiphase flow
22%
Shale
22%
Horizontal wells
21%
Crushing
21%
Coastal zones
21%
Hinges
20%
Natural gas
16%
Rocks
16%
Compaction
16%
Hydraulics
14%
Engineers
13%
Economics
12%
Chemical Compounds
Gas
41%
Natural Gas
12%
Permeability
8%
Simulation
7%
Energy
5%