Integral-average pressure over the drainage volume V_e:
(1) | p_r = \frac{1}{V_e} \iint_{A_e} p(x,y,z) dV |
For the steady state flow in finite reservoir the relationship between Boundary-average formation pressure p_e and Field-average formation pressure p_r is going to be:
(2) | p_r = p_i - \frac{q_t}{2 \pi \sigma} \bigg[ \ln \frac{r_e}{r_w} -0.5 \bigg] |
See Also
Petroleum Industry / Upstream / Production / Subsurface Production / Well & Reservoir Management / Formation pressure (Pe)
Subsurface E&P Disciplines / Production Technology
[Reservoir pressure] [Initial formation pressure, Pi] [Drilled formation pressure, Pd] [Startup formation pressure, P0] [ Multiphase formation pressure ]