Sample narrative instruction to accompany checklist

After the 26-in. hole has been drilled, it is time to run the 20-in. casing. All tools, etc., required for this operation have been prepared in accordance with the checklist for "Running 20-in. casing." The casing will have been measured ahead of time and the operator's drilling supervisor or engineer will make out a running list. The list defines the correct order in which to run the casing.The first joint to be picked up is the shoe joint. The bottom 10-15 ft is painted white to aid visibility when entering the 30-in. housing. A rotating ring is attached to this joint, about 10-12 ft from the bottom, for guide ropes.When the shoe joint is picked up, water is pumped into it to test t...

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