Pressure Required to Break Circulation
Pressure Required to Break Circulation - Annular formula |
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| \( P_{gs} \;=\; [\; y \;/\; 300 \; ( D_h - D_d ) \;] \; L \) | ||
| Symbol | English | Metric |
| \( P_{gs} \) = pressure to overcome mud's gel strength inside annulus (psi) | \(lbf\;/\;ft^2\) | - |
| \( y \) = gel strength of drilling fluid | \(lbf\;/\;100\;ft^2\) | - |
| \( L \) = length of drill string | \(ft\) | - |
| \( D_h \) = diameter of hole | \(in\) | - |
| \( D_p \) = diameter of drill pipe | \(in\) | - |
Tags: Drilling Mud