Net pressure is the excess pressure over the frac pressure
required to open the fractures:
p_{\rm net} = p_{\rm BHP} - p_c |
where
| botom-hole pressure during the frac treatment | |
| the closure pressure which is approximately minimum horizontal stress |
The physical meaning of the Net pressure is that it is the energy required for propagating fracture and creating its width during the frac job.
Petroleum Industry / Upstream / Well / Well-Reservoir Contact (WRC) / Hydraulic Fracture
|