...
| LaTeX Math Block | ||
|---|---|---|
| ||
\phi_e = \frac{V_\phi}{V_r} |
The log name is PHIE.
The reason to introduce this concept is that a part of the actual inter-grain void is filled with shale thus reducing the actual volume available for fluids.
...
| LaTeX Math Block | ||
|---|---|---|
| ||
\phi_e = \phi_{\rm opn} + \phi_{\rm cls} |
...
Effective porosity is a function of reservoir pressure at a given location LaTeX Math Inline body p({\bf r})
...