You are viewing an old version of this page. View the current version.
Compare with Current
View Page History
« Previous
Version 24
Next »
Correlation between formation compressibility
c_r(p) at a given pressure
p and initial formation compressibility
c_{ri} at initial formation pressure
p_i
Correlation | Name/Author | Scope |
---|
(1) |
\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) } |
(2) |
p_n = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - p) |
(3) |
p_{ni} = p_{\rm min} + 1.75 \cdot \phi^{0.51} \cdot (p_{\rm max} - p_i) |
|
Dobrynin | Wide pressure range: pmin = 1 MPa < p < pmax = 200 MPa
|
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Geomechanical Rock Modelling / Formation compressibility