Stuck Point Depth - Work
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Stuck pipe, release 1, issued 11 April 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 depth of stuck point from stretch data.
Pipe OD and ID. L_Dpipe & L_dpipe
Pipe stretch. L_Δdp
Additional load. Fα
Enter a -ve value if axial compressive force
Click here when any values are modified to update the result.
Length of pipe above stuck point
Note – this is an estimate. Hole drag and pipe sticking over a length (eg packed off) rather than being stuck at a single point will affect the result. Use a free point indicator logging tool to find out the actual stuck pipe depth.
SUGGESTED METHOD OF GATHERING STRETCH DATA
If working the pipe in tension
If working the pipe in compression