Production EngineeringHydraulic Fracturing
Net Fracture Pressure from Fracture and Closure Pressure Formula
Net Fracture Pressure from Fracture and Closure Pressure calculates net fracture pressure for hydraulic fracturing workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (P_frac, S_closure) are known and the assumptions behind the cited hydraulic fracturing relationship match the engineering case being checked.
Assumptions
- Input values are representative for the well, reservoir, fluid, or equipment case being evaluated.
- The declared units match the field-unit constants used in the formula.
- The cited formula applies to the selected petroleum engineering workflow.
Limitations
- The calculation does not replace a full engineering model or operating procedure.
- Accuracy depends on the source correlation, assumptions, input quality, and unit consistency.
Common mistakes
- Mixing unit systems without converting the inputs.
- Using default example values as field recommendations.
- Applying the formula outside the source assumptions.
Default example
Using the default inputs, P_net equals 700 psi.
P_fracpsi
6500
S_closurepsi
5800
Inputs
P_frac
psiPressure Inside the Fracture
S_closure
psiFracture Closure Stress or Closure Pressure
Outputs
P_net
psi
Net Fracture Pressure
P_frac
psi
Pressure Inside the Fracture
S_closure
psi
Fracture Closure Stress or Closure Pressure
Source and review
reviewedPrabhakaran et al. 2017. Pore pressure effects on fracture net pressure and hydraulic fracture containment, Journal of Petroleum Science and Engineering.
Source