Safety Performance Monitoring for Drilling: A More Comprehensive System

The Frequency Rates generally used in safety statistics for Lost Time Injuries and Minor Injuries provide measurement only on consequences and not on causes. As such they cannot help much in improving the safety performance of one particular operation or contract, especially for short term contracts. This paper describes a system which enables an early detection of failures of the safety management system, before such failures lead to injuries. This system improved the safety performance of drilling rigs around the world, which resulted in a company Lost Time Accident Frequency rates divided by two.