Freezing operation

Creation of a plug by freezing a liquid in a pipe or fitting to confine the pressure while removing defective or inadequate equipment downstream of the plug.

Source: API RP 54, Recommended Practice for Occupational Safety for Oil and Gas Well Drilling and Servicing Operations, Third Edition, August 1999 (2007). Global Standards


Freezing operation

“Freezing operation” means the creation of a plug by freezing a liquid slug in a pipe fitting. [Mich. Admin. Code R 408 (2013)].

Source: Oil and Gas Drilling and Servicing Operations, Michigan Administrative Code R 408, February 8, 2013. Regulations

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