Removing the Horsehead (Pumping Unit Only)
The horsehead is the curved metal piece attached to the end of the walking beam on a pumping unit. It connects to the polished rod, which moves up and down to pump fluids from the well. Before any work can be done on the wellhead equipment, the horsehead usually must be removed. This allows the crew to reach the wellhead safely and begin maintenance or service tasks.
Removing the horsehead is a common step during workover operations. It is a heavy piece of equipment and must be handled carefully. Workers use hoisting tools and follow safety procedures to lower it safely to the ground. The unit must be shut down and secured before starting this job to prevent accidents.
Potential Hazards
Several hazards are present when removing the horsehead. Workers must be aware of these risks and take steps to prevent injury or equipment damage.
- Having the unit start up while working on equipment
- Being struck by counterweights on the pumping unit
- Being struck by dropped horsehead or caught between horsehead and walking beam
- Getting fingers and hands pinched and caught between tools and/or equipment
- Being struck by falling tools or equipment
- Falling from an elevation
Possible Solutions
To reduce the risk of injury, workers must follow safety procedures and use the right tools and equipment for the job. The following actions help create a safer work environment:
- Use lockout/tagout, to include mechanically securing the flywheel.
- Inspect all slings before use.
- Use tag lines to position the horsehead when removing or lowering and to keep personnel clear of suspended load.
- Use the correct tools for each task.
- Inspect the tools before each use.
- Keep fingers and hands away from pinch points.
- Secure tools from falling and keep the area below clear of personnel.
- Use proper PPE and fall protection as required.
Knowledge Check Choose the best answer for the question.
4-2. Why are tag lines used to position the horsehead when removing or lowering?
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