Cost of Coring per Foot Formula |
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| \( C_c \;=\; \dfrac{ C_b + C_r \cdot ( T_c + T_t + T_r ) }{ F_c \cdot R_c } \) |
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| Symbol | English | Metric |
| \( C_c \) = Cost of Coring | \( cost \) | - |
| \( C_b \) = Core Bit Cost | \( cost \) | - |
| \( C_r \) = Rig Cost | \( cost \) | - |
| \( T_c \) = Total Coring Time | \(hr\) | - |
| \( T_t \) = Trip Time | \(hr\) | - |
| \( T_r \) = Core Recovery Time | \(hr\) | - |
| \( F_c \) = Footage Cored | \(ft\) | - |
| \( R_c \) = Core Recovery Percentage | \(dimensionless\) | - |
