...
Moving to annual time step may accumulate a substantial mistake if formation pressure has varied substantially in some years.
Table 1. Polynomial approximation of
for infinite aquifer | | LaTeX Math Inline |
|---|
| body | W_{eD}=\sqrt{\frac{t_D}{\pi}} |
|---|
|
|
| | LaTeX Math Inline |
|---|
| body | \displaystyle W_{eD}=\frac {1.2838 \cdot t_D^{1/2} + 1.19328 \cdot t_D +0.269872 \cdot t_D^{3/2} +0.00855294 \cdot t_D^2} {1+0.616599 \cdot t_D^{1/2}+0.0413008 \cdot t_D} |
|---|
|
|
| | LaTeX Math Inline |
|---|
| body | \displaystyle W_{eD}=\frac{-4.29881+2.02566 \cdot t_D}{\ln t_D} |
|---|
|
|
Scope of Applicability
...
The benefit of VEH approach is that net pay formation pressure history
is usually known so that water influx calculation based on aquifer properties
is rather straightforward.
...
