Abbreviations
AC   Alternate Current
AHC   Active Heave Compensator
AHU   Air Handling Unit
APV   Air Pressure Vessel
ASDS   Adjustable Speed Drive System
AVP   Anti Vibration Pads
BB   Belly Board
BHA   Bottom Hole Assembly
BO   Break Out
BOP   Blow Out Preventor
BRC   Bridge Crane
CB   Crown Block
CC   Control Cubicle
CCTV   Closed Circuit Television
CCW   Counter Clockwise
CH   Cathead
CMC   Crown Mounted Compensator
CP   Circulation Pump
CSB   Casing Stabbing Basket
CW   Clockwise
CWT   Cooling Water Temperature
CWV   Cooling Water Valve
DASM   DrillView Alarm Sound Manager
DAT   Direct Acting Tensioners
DC   Direct Current
DC   Drill Collar
DCC   Drilling Control Cabin
DCMS  Drilling Control and Monitoring System
DD   Directional Drilling
DDC   Drilling Data Center
DDM   Derrick Drilling Machine
DECS   Drilling Equipment Control System
DF   Drill Floor
DFECS   Drill Floor Equipment Control System
DFMA   Drill Floor Manipulator Arm
DICS   Drawwork interface & Control System
DLA   Drill Line Anchor
DLD   Drill Line Drum
DNV   Det Norske Veritas
DP   Drill Pipe
DrillView  Aker MH’s DCMS System (Tradename)
DSM   Drilling Support Module
DSN   Data Source Name
DV   DrillView
DVS   DrillView Server