AHDD
Definition
Dual Active Heave Drilling Drawworks
AHDD means Dual Active Heave Drilling Drawworks. Note that AHD stands for Active Heave Drilling Drawworks, whereas AHDD is Dual Active Heave Drilling Drawworks (the 'D' in drilling is missing from each acronym, and the…
Note that AHD stands for Active Heave Drilling Drawworks, whereas AHDD is Dual Active Heave Drilling Drawworks (the 'D' in drilling is missing from each acronym, and the 'D' from dual is moved for the 4-letter acronym... confusing). Videos of each can be found online.
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