Setting up the Substructure
Equipment is unloaded and positioned at or near the exact location that it will occupy during operations.
The substructure is being assembled and made ready for other rig components on the floor.
The substructure is assembled, pinned together, leveled, and made ready for other rig components on the floor.
Equipping the cellar begins but can be done throughout the rigging up process. This includes welding on a drilling nipple to the conductor pipe and attaching a flow line.
Potential Hazards
- being struck by the crane, load, truck, or forklift tipping
- pinched fingers when assembling equipment
- burns from cutting and welding on the drilling nipple
- temporary eye irritation from welding light flash
- falling from heights
Possible Solutions
- Instruct all workers in safety procedures and ensure that they are knowledgeable about job hazards. This can be done during pre-job safety meetings or JSA briefings.
- Instruct workers to stand clear and keep hands and other body parts away from pinch points
- Wear proper long sleeve clothing to protect from burns.
- Wear proper welding eye/face protection.
- Avoid looking directly at the flame or arc when welding.
- Wear fall protection when working from heights.
Knowledge Check Choose the best answer for the question.
2-3. Where should equipment be unloaded and positioned when setting up the site substructure?
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