A real-time example from the rig floor
In this video, we see a situation that underscores the importance of pressure management and situational awareness during drilling operations—particularly when tripping pipe.
From the very start of the video, it’s clear that something is not normal. The drill string appears to be pushed upwards, with the elevators latched, and long bails under tension. There’s a visible and unnatural bending of the pipe just below the elevators, indicating that significant upward force is being exerted on the string.
My initial judgment, based on the movement and deformation observed, is that this was caused by downhole pressure—likely a kick or trapped formation pressure that was not properly circulated out or balanced before pulling out of the hole. When pressure is trapped below the bit or BHA, and the hydrostatic head above is insufficient to counterbalance it, the pressure seeks a release path—often pushing upward on the drill string.
Since the elevators were latched and the bails are holding the string in tension, the energy has nowhere to go except through mechanical deformation—causing the pipe to flex at its weakest point: between the top of the hole and the elevators.
This is not just a dramatic moment—it’s a potential red flag that could lead to serious consequences:
Equipment failure (e.g., parted pipe or damaged elevators)
Uncontrolled release of pressure
A well control incident if the situation escalates further
It’s a critical reminder that even during routine operations like tripping pipe, we must respect what’s going on downhole. Trapped pressure can behave unpredictably if not carefully monitored and managed. Proper circulation, pressure checks, and wellbore stability assessments are not just procedural checkboxes—they are safety measures that can prevent events like this.
Key Lessons from This Incident:
- Always ensure pressure is properly circulated and balanced before pulling out.
- Monitor trip tank volumes closely for any signs of influx or swabbing.
- Never underestimate formation behavior near surface, especially when the BHA is close to coming out.
- Educate crews on recognizing subtle signs of downhole pressure acting on the string.