pipeline on pipe hurdles

From: <Gang>
Date: Fri Mar 28 2003 - 05:43:00 EST

Hello friends,
In the context of the oil field piping in desert terrain, can someone tell/explain me the meaning of “pipeline on pipe hurdles” and “pipe line rig crossing”? What are the essential characteristics of these? My reference is to the Gulf region. Regards.
Gangadharan.

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