Page 109 - Formulas and Calculations for Petroleum Engineering

102 Formulas and calculations for petroleum engineering

Formula(s)

B+C t+Tð Þ
R
C ¼
T
F
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 28.

2.63 Drilling ton miles—Coring operation ton miles

Input(s)

T 4 : Ton Miles for One Round Trip-depth Where Coring Stopped Before Coming out of Hole (ton miles)
T 3 : Ton-miles for One Round Trip-depth Where Coring Started After Going in Hole (ton miles)

Output(s)

T c : Coring Operation Ton Miles (ton miles)

Formula(s)

ð
T ¼ 2 T T Þ
c 4 3
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 46.

2.64 Drilling ton miles—Drilling/connection ton miles

Input(s)
T 2 : Ton Miles for One Round Trip-Depth Where Drilling Stopped Before Coming out of Hole (ton miles)
T 1 : Ton-miles for One Round Trip-Depth Where Drilling Started (ton miles)

Output(s)
T D : Drilling/connection Ton Miles (ton miles)

Formula(s)

T ¼ 3 T T Þ
ð
D 2 1
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, second edition,
Gulf Professional Publishing, Page: 46.

2.65 Drilling ton miles—Round trip ton miles
Input(s)

W p : Buoyed Weight of Drill Pipe (lb/ft)
D: Depth of Hole (ft)
L p : Length of One Stand of Drill Pipe (ft)
W b : Weight of Travelling Block (lb)
Wdc: Weight of Drill Collar Per Feet (lb/ft)