This is may not relate to drilling formula but it may be good for new people to know about oil field abbreviations. If you have more than what I have, please feel free to add more by putting in the blog comment.
ACF – Annular Capacity Factor
AV – Annular Velocity
BF – Buoyancy Factor
BHA – Bottom Hole Assembly
BHP – Bottom Hole Pressure
BOP – Blow Out Preventor
BOPE – Blow Out Preventer Equipment
BPUTS – Bring Pumps Up To Speed
CC – Circulate and Condition mud
CLF – Choke Line Friction
CMW – Current Mud Weight
CP – Casing Pressure
DC – Drill Collar
Dh – Diameter of hole in inches
DP – Drill Pipe
DPP – Drill Pipe Pressure
ECD – Equivilant Circulating Density
EOB – End of Build
ESP – Estimated Stuck Point or Electical Submersible Pump
FCP – Final Circulating Pressure
FD – Fluid Density
FIT – formation integrity test
FOSV – Full Opening Safety Valve
FP – Formation Pressure
FrP – Friction Pressure
FV – Funnel Viscosity
GPM – Gallons Per Minute
HHP – Hydraulic Horse Power
HP – Hydrostatic Pressure
IBOP – Inside Blow Out Preventer
ICP – Initial Circulating Pressure
ISICP – Initial Shut-in Casing Pressure
KLF – Kill Line Friction
KMW – Kill Mud Weight
KOP – Kick Off Point
Lbs. – Pounds
LC – Lost Circulation
LCM – Lost Circulation Material
Len – Length in feet
LOT – Leak Off Test
MAASP – Maximum Allowable Annular Surface Pressure
MASP – Maximum Anticipated Surface Pressure
MD – Measured Depth
MGS – Mud Gas Separator
MI – Mud Increment
MISICP – Maximum Initial Shut-in Casing Pressure
MOP – Margin of Over Pull
MW – Mud Weight in ppg
NP – Neutral Point
OBM – Oil Based Mud
OMW – Original Mud Weight
OPT – Optimum
PG – Pressure Gradient
PI – Pressure Increment
POH – Pull Out Hole
PP – Pore Pressure
PPG – Pounds Per Gallon
RIH – Run In Hole
ROH – Run Out Of Hole
RPM – Rounds Per Minute
RSS- Rotary Steerible System
SCR – Slow Circulating Rate
SG – Specific Gravity
SICP – Shut-in Casing Pressure
SIDPP – Shut-in Drill Pipe Pressure
SOBM – Synthetic Oil Based Mud
SP – Surface Pressure
SPM – Strokes Per Minute
SPM Valve – Side Pocket Mandrel Valve
SPR – Slow Pump Rate
TDS – Top Drive System
TIH – Trip In Hole
TOC – Top Of Cement
TOF – Top Of Fish
TOH or TOOH – Trip Out Of Hole
TOL – Top Of Liner
TVD – True Vertical Depth
WL – Water Loss or Wire Line
WOB – Weight On Bit
WOC – Wait On Cement
WOO – Wait On Orders
WOW – Wait On Weather
YP – Yield Point
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