Volumes and Strokes

on . Posted in Drilling Engineering

   

 Volumes and Strokes - Annular Volume formula

\( AC \;=\; D_h + D_{pod}  \;/\; P_o  \)     (Annular Volume)

\( D_h \;=\; AC \; P_o -  D_{pod}   \)

\( D_{pod} \;=\; AC \; P_o -  D_h  \)

\( P_o \;=\; D_h + D_{pod}  \;/\; AC  \)

Symbol English Metric
\( AC \) = annular volume \(bbl\) -
\( D_h \) = drill hole diameter \(in\) -
\( D_{pod} \) = drill pipe OD \(ft\) -
\( P_o \) = pump output \(bbl\;/\;stroke\) -

 

 Volumes and Strokes - Drill String Volume formula

\( DS_v \;=\;  DS_{id} + PL  \;/\; P_o  \)     (Drilling String Volume)

\( DS_{id} \;=\;  DS_v \; P_o  - PL  \)

\( PL \;=\;  DS_v \; P_o  - DS_{id}  \)

\( P_o \;=\;  DS_{id} + PL  \;/\; DS_v  \)

Symbol English Metric
\( DS_v \) = drill string volume \(bbl\) -
\( DS_{id} \) = drill string ID \(in\) -
\( PL \) = pipe length \(ft\) -
\( P_o \) = pump output \(bbl\;/\;stroke\) -

 

 Volumes and Strokes - Total Strokes formula

\( S \;=\;  DS_v + AC  \;/\; P_o  \)     (Total Strokes)

\( DS_v \;=\;  S \; P_o  \;/\; AC  \)

\( AC \;=\;  S \; P_o  \;/\; DS_v  \)

\( P_o \;=\;  DS_v + AC  \;/\; S  \)

Symbol English Metric
\( S \) = total strokes \(dimensionless\) -
\( DS_v \) = drill string volume \(bbl\) -
\( AC \) = annular volume \(bbl\) -
\( P_o \) = pump output \(bbl\;/\;stroke\) -

 

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Tags: Drilling Annular Drilling Pump Drill Pipe