Drilling Industry Glossary
waiting on cement (WOC)
water
water activity
water phase salinity
water table
weight indicator
weight on bit (WOB)
well logging
well planning
wellbore
wellpath map
whip stock
wild cat
workover
worm or weavel
Worm or Weavel
New and/or untrained member of the crew. During trips, the worm stands across the rig floor from the driller and watches (to learn) the tripping procedure so that some day he can safely participate.
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