Production EngineeringHydraulic Fracturing

Acid Dissolving Power for 15 Percent HCl - Acidizing Formula

X_{15}=\frac{\rho_{15\%HCl}\beta_{15\%HCl}}{\rho_{CaCO_3}}

Acid Dissolving Power for 15 Percent HCl - Acidizing calculates acid dissolving power for hydraulic fracturing workflows in production engineering.

Calculate

How engineers use this formula

Use this formula when the listed inputs (rho_HCl_15, beta_HCl_15, rho_CaCO3) 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, X_15 equals 0.080941 cc/cc.

rho_HCl_15g/cc

1.07

beta_HCl_15g/g

0.205

rho_CaCO3g/cc

2.71

Inputs

rho_HCl_15

g/cc

Density of 15 Weight Percent HCl Solution

beta_HCl_15

g/g

Mass of Rock Dissolved per Mass of 15 Percent HCl Solution

rho_CaCO3

g/cc

Calcium Carbonate Density

Outputs

X_15

cc/cc

Acid Dissolving Power

rho_HCl_15

g/cc

Density of 15 Weight Percent HCl Solution

beta_HCl_15

g/g

Mass of Rock Dissolved per Mass of 15 Percent HCl Solution

rho_CaCO3

g/cc

Calcium Carbonate Density

Source and review

reviewed

Williams, 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 13.

Source