Amount of Additive Required to Achieve a Required Cement Slurry Density formula |
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| \( x \;=\; \dfrac{ \left( \dfrac{ \rho \cdot 11.207983 }{ SG_c } \right) + ( \rho \cdot C) - 94 - ( 8.33 \cdot C ) }{ \left( 1 + \dfrac{ A }{ 100 } \right) - \left( \dfrac{ \rho }{ 8.33 \cdot SG_a } \right) - \left( \rho + \dfrac{ A }{ 100 } \right) }\) |
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| Symbol | English | Metric |
| \( x \) = Amount of Additive Required | \(lbm \;/\; stroke\) | - |
| \( \rho \) = Required Slurry Density | \(lbm \;/\; gal\) | - |
| \( SG_c \) = Cement Specific Gravity | \(dimensionless\) | - |
| \( C \) = Cement Water Requirement | \(gal \;/\; stroke\) | - |
| \( A \) = Additive Water Requirement | \(gal \;/\; stroke\) | - |
| \( SG_a \) = Additive Specific Gravity | \(dimensionless\) | - |
