Definition(s)
ETA
Event tree analysis.
Source: International Association of Drilling Contractors, Appendix 2 to Health, Safety and Environment Case Guidelines for Offshore Drilling Contractors, Issue 3.3.2, February 2010. IADC Guidelines
Source: ISO 17776:2000, Petroleum and natural gas industries – Offshore production installations – Guidelines on tools and techniques for hazard identification and risk assessment. Global Standards
ETA
Tree-like diagram used to determine alternative potential scenarios arising from a particular hazardous event.
NOTE It can be used quantitatively to determine the probability or frequency of different consequences arising from the hazardous event.
Source: ISO 17776:2000, Petroleum and natural gas industries – Offshore production installations – Guidelines on tools and techniques for hazard identification and risk assessment. Global Standards
ETA
Estimated Time of Arrival.
Source: NOGEPA Guideline 14, Helideck Operations and Procedures Manual, Netherlands, Version 2, December 2011. Global Standards