Setting Up the Rig Floor and Mast or Derrick
Once the substructure is set in place, the process of setting up the rig floor begins.
- Install the stairways and guardrails to allow access to the rig floor.
- Set the drawworks in place and secure it to the substructure.
Raising the Mast
- On mechanical rigs, set the engines in place
- The compound and associated equipment are connected to the drawworks.
- On electric rigs, the electric cables (lines) are strung to the drawworks.
- Raise the bottom of the mast to the rig floor and pin it in place.
- Raise the crown section into place on the derrick stand.
- Raise the "A-legs" and pin them into place.
- Pin the monkeyboard in place on the mast.
- Lay out all lines and cables to prevent tangling when the mast is raised.
Finally, conduct a thorough inspection of all floor equipment, and mast components before it is raised.
The mast is now ready to be raised.
- Start the engines and spool the drilling line onto the drawworks drum.
- Once the mast has been raised and pinned, set the remaining floor equipment into place.
- If the rig has safety guylines, attach them to the anchors and properly tension them prior to continuing the rigging up process.
- Install a derrick emergency escape device on the mast.
After the mast/derrick is raised, conduct a thorough second inspection of the drawworks, floor equipment, mast, guylines, anchors, and emergency escape device.
Knowledge Check Choose the best answer for the question.
2-4. What is the final process when raising the mast/derrick?
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