Production EngineeringHydraulic Fracturing
Dynamic-Test Fluid Loss per Unit Area - Acidizing Formula
Dynamic-Test Fluid Loss per Unit Area - Acidizing calculates fluid loss volume per unit area for hydraulic fracturing workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (V_spt, v_N, t) 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, V equals 0.008 m^3/m^2.
V_sptm^3/m^2
0.002
v_Nm/s
0.00001
ts
600
Inputs
V_spt
m^3/m^2Spurt Volume per Unit Area
v_N
m/sFluid Loss Velocity
t
sTime
Outputs
V
m^3/m^2
Fluid Loss Volume per Unit Area
V_spt
m^3/m^2
Spurt Volume per Unit Area
v_N
m/s
Fluid Loss Velocity
t
s
Time
Source and review
reviewedWilliams, B.B., Gidley, J.L. and Schechter, R.S. 1979. Acidizing Fundamentals. Henry L. Doherty Memorial Fund of AIME, Society of Petroleum Engineers of AIME, Page 42.
Source