Production EngineeringHydraulic Fracturing
Fracture Area from Saydam Leakoff Function Formula
Fracture Area from Saydam Leakoff Function calculates hydraulic fracture area for hydraulic fracturing workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (q_i, W_f, t, C_L) 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, A_f equals 7,999.683022 m2.
q_im3/min
2
W_fm
0.006
tmin
60
C_Lm/sqrt(min)
0.0004
Inputs
q_i
m3/minInjection Rate
W_f
mFracture Width
t
minInjection Time
C_L
m/sqrt(min)Fracture Fluid Leakoff Coefficient
Outputs
A_f
m2
Hydraulic Fracture Area
q_i
m3/min
Injection Rate
x_D
dimensionless
Saydam Leakoff Parameter
F_L
dimensionless
Saydam Leakoff Function
Source and review
reviewedPrinciples of Hydraulic Fracturing, Saydam, T. (1967)
Saydam, T. 1967. Principles of Hydraulic Fracturing, ARI Publishing Co., Page 12.
source conflict
Source