1. n. [Well Workover and Intervention]

An operating condition during a snubbing operation in which the force resulting from the weight of the pipe or tubing string is greater than the wellhead pressure and the buoyancy forces acting to eject the string from the wellbore. In the heavy-pipe condition, the string will drop into the wellbore if the gripping force is lost.

Synonyms: heavy pipe

Antonyms: light pipe,  pipe light