Drilling ton miles - While making short trip ton miles

Input(s)

$\mathrm{T}_{6}$: Ton Miles for One Round Trip-at the Deeper Depth, the Depth of the Bit Before Starting Short Trip (ton miles)

$\mathrm{T}_{5}$: Ton-miles for One Round Trip-at Shallower Depth,the Depth that the Bit is Pulled up to (ton miles)

Output(s)

$\mathrm{T}_{\mathrm{ST}}$: Short Trip Ton Miles (ton miles)

Formula(s)

$$ \mathrm{T}_{\mathrm{ST}}=\left(\mathrm{T}_{6}-\mathrm{T}_{5}\right) $$

Reference(s)

Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition, Gulf Professional Publishing, Page: 47.