Correlation between absolute permeability
at a given reservoir pressure and initial absolute permeability at initial formation pressure
| CorrelationCorrrelation | Name/Author | Scope |
|---|
| LaTeX Math Block |
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| k_a(p) = k_i{ai} \cdot \exp [ - \gammac_k \cdot (p_i - p) ] |
|
Yilmaz and Nur
|
Narrow Wide pressure range below
| LaTeX Math Block |
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| anchor | Dobrynin |
|---|
| alignment | left |
|---|
| \displaystyle c_r(p) = c_{ri} \cdot \frac{ \ln \left( \frac{ p_n }{p_{\rm max}} \right) }{ \ln \left( \frac{p_{ni}}{p_{\rm max}} \right) } |
| LaTeX Math Block |
|---|
| p_n = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - p) |
| LaTeX Math Block |
|---|
| p_{ni} = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - ) where is initial formation pressure is initial formation compressibilityDobrynin Sandstone Wide pressure range: pmin = 1 MPa < p < pmax = 200 MPa |
See also
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Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Absolute permeability
[Geomechanical Rock Modelling]
