structural geology, propagation mechanics and - Stanford School of ...

Normalized ∆P
∆P ratio (n/p)
4.5
4
3.5
3
2.5
2
1.5
1
0.5
0
(a) Well spacing (meters)
2.5
2
1.5
1
0.5
0
(b)
n
p
n
p
n
p
n
p
25 50 75 100 125 150 175 200
25 50 75 100 125 150 175 200
Well spacing (meters)
Figure 7.7. Pressure drop (∆P) results for the 210 well-to-well flow simulations shown as
boxplots, each representing the 15 well-pair midpoint locations shown in Figure 7.6. The
top, middle and bottom lines of each box give the upper quartile, median and lower
quartile values, respectively, for the corresponding set of data; the whiskers extend to the
maximum and minimum values. (a) Boxplot pairs representing ∆P roughly normal (n)
and parallel (p) to the dominant band trend as a function of well spacing (all values
normalized by the corresponding homogeneous, isotropic, band-free result). (b) Boxplots
representing the ∆P ratio (n/p), or anisotropy, at each well-pair midpoint location as a
function of spacing.
184
n
p
n
p
n p