Correlation between pore compressibility c_r(p) at a given pressure p and initial pore compressibility c_{ri} at initial formation pressure p_i :
Correlation | Name/Author | Scope | ||||||
---|---|---|---|---|---|---|---|---|
| Wide pressure range: pmin = 1 MPa < p < pmax = 200 MPa |
In many practical cases the pore compressibility can be considered as poorly dependent on reservoir pressure variation.
But in case the reservoir pressure is changing substantially one may need to account for the effect it takes on pore compressibility which can be fairly approximated by Dobrynin correlation (1).
See also
Petroleum Industry / Upstream / Subsurface E&P Disciplines / Petrophysics / Geomechanical Rock Modelling / Pore compressibility