Drilling Industry Glossary
daily drilling report
density hierarchy
derrick
derrickhand
diamond bit
differential pressure
differential survey
directional drilling
directional drilling software
displacement fluid
doghouse
dogleg
dogleg severity
donkey pump
doughnut
downhole motor
downtime
draw works
drill collars
drill collar sub
drill pipe
drill stem
drill stem test
drill string
drillers
drilling engineering design
drilling fluid
drilling foreman
dry hole
dual completion
dutchman
Differential Survey
A series of measurements made at locations spaced at regular intervals along the wellpath. At each station, the measured depth, the azimuth and inclination of the wellpath direction at that station are determined.
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