Pipe Stretch - Work
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Pipe stretch, release 1, issued 7 March 2010. WORK version.
This worksheet exists in two versions. They are identical apart from the way they are formatted. The Work version hides intermediate calculations and allows the user to see the results just below the inputs. This is useful for quick “what-if” games, changing various inputs to see what works best. The Audit version displays all intermediate calculations.
This worksheet will calculate the change in length of pipe due to a) it’s own weight when submerged in fluid, b) additional axial load (tension or compression) and c) a change in the average temperature.
psi/ftSG or kg/lppgkPa/mlb/ft3lb/bbl
Mud density. Jmudsg
Steel vertical length. L_Vsteel
Pipe OD and ID. L_Dpipe & L_dpipe
Average temperature change. TΔ
Enter a -ve value if the temperature drops
Additional load. Fα
Enter a -ve value if axial compressive force
Click when modified to update the result.
Original length of pipe
Length of pipe due to
axial and thermal strain