Venting of fluids to the surface or to the seabed through channels external to the casing.
Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards
Flow of fluids to the surface or to the sea bed through channels outside the casing.
Source: API RP 64, Recommended Practice for Diverter Systems Equipment and Operations, Second Edition, November 2001 (March 1, 2007). Global Standards