Production EngineeringHydraulic Fracturing
Ideal Fracture Conductivity Created by Acid Reaction Formula
Ideal Fracture Conductivity Created by Acid Reaction calculates opened channel width for hydraulic fracturing workflows in production engineering.
How engineers use this formula
Use this formula when the listed inputs (X, i, t, x_L, h, phi) 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, w_a equals 0.0075 ft.
Xft^3/ft^3
0.1
ift^3/min
10
tmin
60
x_Lft
100
hft
50
phifraction
0.2
Inputs
X
ft^3/ft^3Acid Dissolving Power
i
ft^3/minInjection Rate
t
minInjection Time
x_L
ftAcid Penetration Distance
h
ftFracture Height
phi
fractionPorosity
Outputs
w_a
ft
Opened Channel Width
X
ft^3/ft^3
Acid Dissolving Power
i
ft^3/min
Injection Rate
t
min
Injection Time
x_L
ft
Acid Penetration Distance
h
ft
Fracture Height
phi
fraction
Porosity
Source and review
reviewedWilliams, B.B., Gidley, J.L. and Schechter, R.S. 1979. Acidizing Fundamentals, Henry L. Doherty Memorial Fund of AIME, SPE of AIME, Page 49.
Source