Engineering & Materials Science
Hydraulic fracturing
100%
Shale
34%
Fracturing fluids
19%
Cracks
15%
Porous materials
14%
Crack propagation
13%
Fracturing (fossil fuel deposits)
10%
Well drilling
10%
Horizontal drilling
10%
Fluids
9%
Pore pressure
9%
Horizontal wells
8%
Phantoms
8%
Crack tips
7%
Elasticity
7%
Flow of fluids
6%
Data acquisition
6%
Hydraulics
5%
Flow rate
5%
Geometry
4%
Earth & Environmental Sciences
hydraulic fracturing
81%
crack
26%
shale
26%
crack propagation
19%
porous medium
14%
fluid
9%
fluid pressure
9%
elasticity
8%
stress field
8%
pore pressure
7%
data acquisition
7%
fluid flow
7%
simulation
7%
drilling
6%
permeability
5%
well
5%
geometry
5%
demand
5%
method
3%
modeling
3%
rate
2%
effect
1%