I agree with zdas04 on building the launcher with the ability to easily change length. I design intelegent pigs and their lengths can vary greatly from company to company so making it easy to tailor fit the oversized portion will make your life easier in the long run.
Just don't forget to do...
Dudepipeliner
My background is in freeswimming heavyweight MFL tool design.
From my standpoint I would be concerned with just the IDs of the pipe. In particular, I am generally concerned with the minimum ID in the line and not so much with the variations of the pipewall.
Data analists...
London
Slow speed is not a concern with the newer Hall Effect Tools, it's battery life that would be a problem for extreemly long duration runs. There are ways to extend battery life if necessary.
Regards
William
William G. Callahan P.Eng.
Pipeline Management Group
Baker Hughes
