Rock Removal Rate
Drilling rock removal rate, abbreviated as \(q_r\), is the efficiency at which rock material is removed through drilling operations.
Rock Removal Rate formula |
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\( q_r \;=\; b_d^2 \; R \;/\; 11000 \) (Rock Removal Rate) \( b_d \;=\; \sqrt{ q_r \; 11000 \;/\; R } \) \( R \;=\; q_r \; 11000 \;/\; b_d^2 \) |
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| Symbol | English | Metric |
| \( q_r \) = Rock Removal Rate | \(ft^3 \;/\; min\) | - |
| \( b_d \) = Bit Diameter | \(in\) | - |
| \( R \) = Penetration Rate | \(ft \;/\; hr\) | - |
Tags: Drilling Drilling Mud