Geomechanics and FracturingNaturally Fractured Reservoirs
Average Fracture Spacing from Linear Intensity Formula
Average Fracture Spacing from Linear Intensity calculates average fracture spacing for naturally fractured reservoirs workflows in geomechanics and fracturing.
How engineers use this formula
Use this formula when the listed inputs (P10) are known and the assumptions behind the cited naturally fractured reservoirs 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, S_f equals 4 ft.
P101/ft
0.25
Inputs
P10
1/ftLinear Fracture Intensity
Outputs
S_f
ft
Average Fracture Spacing
P10
1/ft
Linear Fracture Intensity
Source and review
reviewedTU Bergakademie Freiberg. Characterization and fluid transport simulations of fractures and fracture networks, Section 2.2.3.
SourceRelated formulas and calculators
Spherical Matrix Block Interporosity Flow Coefficient
Naturally Fractured Reservoirs