Earth & Environmental Sciences
foam
100%
oil
59%
laboratory
53%
evaluation
48%
surfactant
21%
gas
19%
slug
18%
viscosity
17%
foaming agent
11%
gravity
11%
permeability
10%
Berea Sandstone
10%
non-Newtonian fluid
10%
kerosine
9%
liquid
9%
test
9%
pressure drop
7%
low pressure
7%
porous medium
6%
code
6%
plastic
5%
saturation
5%
porosity
5%
water
4%
nitrogen
4%
calculation
4%
comparison
3%
rate
2%
effect
1%
Engineering & Materials Science
Foams
96%
Recovery
68%
Oils
65%
Surface active agents
25%
Capillary tubes
22%
Gases
17%
Viscosity
12%
Viscosity measurement
10%
Liquids
10%
Blowing agents
10%
Density (specific gravity)
9%
Kerosene
9%
Sandstone
9%
Water
8%
Porous materials
7%
Nitrogen
7%
Yield stress
7%
Pressure drop
6%
Gravitation
6%
Porosity
6%
Plastics
5%
Fluids
4%