A "trip" is the process of pulling drillpipe from the wellbore or running the pipe back to the bottom of the wellbore. The manual work performed during a trip inherently increases the risk of an injury, and any time the drillpipe is removed from the wellbore, there is an increased risk of a well control event. Read out the full article here: https://www.tomorrowsworldtoday.com/2023/09/18/how-the-drilling-industry-has-become-safer/.