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
Well Logging
Recording information about subsurface geologic formations; methods include records kept by the driller; mud and cutting analysis, core analysis, drill stem tests, and electric and radioactivity procedures.
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