Typical rock properties

Rock	Fluid	Porosity	Density	Velocity
Sandstone		0.0	2650 kg/m3	3000–5500 m/s
Sandstone	wet	0.1	2500	2500–4500
Sandstone	wet	0.2	2500	2000–3500
Sandstone	oil	0.2	2320	2000–3500
Sandstone	gas	0.2	2320	1800–3500
Limestone	wet	0.0	2710	4500–7000
Limestone	wet	0.1	2540	3800–6500
Dolomite	wet	0.0	2870	4500–7500
Dolomite	wet	0.1	2680	3800–7000
Shale			2000–2800	1800–5000
Salt			2030	4200–4800
Coal			1200–1500	1800–3200