Geomechanics and FracturingNaturally Fractured Reservoirs
Volumetric Fracture Intensity from Fracture Area Formula
Volumetric Fracture Intensity from Fracture Area calculates volumetric fracture intensity for naturally fractured reservoirs workflows in geomechanics and fracturing.
How engineers use this formula
Use this formula when the listed inputs (A_f, V_r) 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, P32 equals 0.2 1/ft.
A_fft^2
20000
V_rft^3
100000
Inputs
A_f
ft^2Total Fracture Surface Area
V_r
ft^3Rock Volume
Outputs
P32
1/ft
Volumetric Fracture Intensity
A_f
ft^2
Total Fracture Surface Area
V_r
ft^3
Rock Volume
Source and review
reviewedTU Bergakademie Freiberg. Characterization and fluid transport simulations of fractures and fracture networks, Table 2 and Section 2.2.2.
SourceRelated formulas and calculators
Spherical Matrix Block Interporosity Flow Coefficient
Naturally Fractured Reservoirs