Oil & Gas
Glossary
D
Danger
Risk of injury
Dangerous occurence
DCQ
Daily Contracted Quantity
Deep-Water Discovery
Delineation well
Deviated well
Development
Development expenditure
Development well
Devonian
Discount rate
Discovery well
Dogleg
Deliberate of accidental sharp bend in a
well
.
Downhole
A term to describe tools, equipment and instruments used in
well bore
.
Downstream
Relates to
oil
and
gas
refining, marketing and distribution activities. (see also
Upstream.
)
Downtime
Offshore operations discontinued due to adverse weather or other factors.
DPD
Dangerous Preparations Directive
Drill bit
Drill collars
Drill cuttings
Drill Ship
Drilling Muds / Fluid
Drill-string
Dry Gas
Dry Hole
DSV
Diving Support Vessel
Dual Completion
dwt
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Copyright © 1999 E&P Consultancy Associates.
Revised - - 26 August 1999