In the context of this publication, an incremental increase in drilling fluid density beyond the drilling fluid density indicated by calculations to be needed to contain a kicking formation.
Source: API RP 59, Recommended Practice for Well Control Operations, Second Edition, May 2006. Global Standards
“Safety Factor” means the ratio of the ultimate breaking strength of a member or piece of material or equipment to the actual working stress.
Source: State of Wyoming Occupational Safety and Health Rules and Regulations for Oil and Gas Well Drilling, Revised January 8, 2013. Regulations