Cost of Drilling Per Foot

on . Posted in Drilling Engineering

     

 Cost of Drilling Per Foot formula

\( C_d \;=\;  ( C_b + C_{to} + C_m ) + ( T_d + T_t + T_c )  \; ( C_r + C_s + C_t ) \;/\; F \; T_d \)
Symbol English Metric
\( C_d \) = Cost of Drilling per Foot \( \)$\(\;/\;hr \) -
\( C_b \) = Bit Cost \( \) $ -
$ C_{to} $ = Tool Cost \( \) $ -
\( C_m \) = Mud Cost \( \) $ -
$ T_d $ = Drilling Time $hr$ -
$ T_t $ = Trip Time $hr$ -
$ T_c $ = Connection Time and Extras $hr$ -
$ C_r $ = Rig Rate  \( \)$\(\;/\;hr \) -
\( C_s \) = Support Rate \( \)$\(\;/\;hr \)  -
\( C_t \) = Tool Rental Rate  \( \)$\(\;/\;hr \)  -
\( F \) = Footage \( ft\;/\;hr \) -

 

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Tags: Drilling