reservoir geomecanics

a.
300
6000
4000
3000
V p (m/s)
2000
1000
200
2
4
7
SANDSTONE
Lama and Vutukuri (1978)
Carmichael (1982)
Jizba (1991)
UCS (MPa)
100
3
0
5
6
1
50 100 150 200 250
t (µs/ft)
b.
400
SANDSTONE
300
Lama and Vutukuri (1978)
Carmichael (1982)
Jizba (1991)
Wong et al. (1997)
8
UCS (MPa)
200
100
0
0 10 20 30 40 50 60 70 80
E (GPa)
c.
UCS (MPa)
400
300
200
SANDSTONE
Lama and Vutukuri (1978)
Jizba (1991)
Kwasniewski (1989)
Wong et al. (1997)
100
9
0
0 0.05 0.1 0.15 0.2 0.25 0.3 0.35
f
10
Figure 4.14. Comparison between different empirical laws (Table 4.1) for the dependence of the
strength of sandstones on (a) compressional wave velocity, (b) Young’s modulus and (c) porosity.
After Chang, Zoback et al. (2006). Reprinted with permission of Elsevier.