Rock Removal Rate

on . Posted in Drilling Engineering

Drilling rock removal rate, abbreviated as \(q_r\), is the efficiency at which rock material is removed through drilling operations.

 

Rock Removal Rate formula

\( q_r \;=\;   b_d^2 \; R \;/\; 11000  \)     (Rock Removal Rate)

\( b_d \;=\;   \sqrt{ q_r \; 11000 \;/\; R }  \)

\( R \;=\;   q_r \; 11000 \;/\; b_d^2  \)

Symbol English Metric
\( q_r \) = rock removal rate \(ft^3 \;/\; min\) -
\( b_d \) = bit diameter \(in\) -
\( R \) = penetration rate \(ft \;/\; hr\) -
   
 
Piping Designer Logo 1

Tags: Drilling Drilling Mud