Snubbing : Pulling or running pipe under pressure through a resilient sealing element where special equipment is used to apply external force to push the pipe into the well or to control the pipe movement out of the well. (RP 54, RP 57)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}