An Offshore Laboratory: Common Abbreviations

Oleochem have listed below, the most common acronyms and abbreviations used within onshore/offshore Oil and Gas production laboratories.


ABS American Bureau Of Shipping
AIChE American Institute Of Chemical Engineers
ANSI American National Standards Institute
API American Petroleum Institute
ASCE American Society Of Chemical Engineers
ASTM American Society For Testing And Materials
ATEX Equipment for potentially explosive atmospheres
BA Breathing Apparatus
BEIS Department for Business, Energy & Industrial Strategy
BOD Biological Oxygen Demand
BP Boiling Point
BS British Standard
BS EN British & European Standard
BS&W Basic Sediment & Water
BTEX Benzene, Toluene, Ethylbenzene, Xylene
c.c Closed Cup (Flashpoint)
CIMV Chemical Injection Metering Valve
CIV Chemical Injection Valve
Cl Chlorine
CO Carbon Monoxide
CO2 Carbon Dioxide
CoC Certificate of Conformance
COSHH Control of Substances Hazardous to Health
CTU Cargo Transport Unit
DBB Double Block and Bleed
DECC Department For Energy And Climate Change (Obsolete, See BEIS)
DG Dangerous Goods
DO Dissolved Oxygen
DP Dew Point
EC European Commission
EC Electrical Conductivity
ECHA European Chemicals Agency
ECITB Engineering Construction Industry Training Board
EDX Energy Dispersive X-Ray
EM Electromagnetic
EN European Standard
EPA US Environmental Protection Agency
ESD Emergency Shut Down
ESEM Environmental Scanning Electron Microscopy
EU European Union
FAT Factory Acceptance Testing
FC Fume Cupboard
Fe Iron
FLIV Flowline Isolation Valve
FM Flowmeter
FO Fuel Oil
FP Flashing Point / Flash Point
FPC Floating Piston Cylinder
FT Flow Transmitter
FWKO Free Water Knock Out
GC Gas Chromatography
GC/MS Gas Chromatography/Mass Spectrometry
GCMS Gas Chromatography/Mass Spectrometry
GHB General Heterotrophic Bacteria
GLR Gas Liquid Ratio
GOR Gas Oil Ratio
H2S Hydrogen Sulfide
HC Hydrocarbons
HCI Hydrochloric Acid
HDPE High Density Polypropylene
Heavy Oil Has an API gravity of less than 22° and a viscosity of less than 100 centipoise
HFE Human Factors Engineering
HP High Pressure
HP Hydrostatic Pressure
HT High Temperature
HTHP High Temperature, High Pressure
IATA International Air Transport Association
IBC Intermediate Bulk Container
ID Inner Diameter
IEA International Energy Agency
IECEx International Electrotechnical Commission (IEC Version of ATEX)
IP Institute of Petroleum (now Energy Institute)
IR Infra-red
ISO International Organisation for Standardisation
KF Karl Fischer
LDPE Low Density Polyethylene
LEL Lower Explosive Limit
LEV Local Exhaust Ventilation
Light Oil Has an API gravity of at least 22° and a viscosity less than 100 centipoise
LNG Liquefied Natural Gas
LP Low Pressure
LP Liquid Petroleum
LPG Liquefied Petroleum Gas
LSA Low Specific Activity (Scale)
LTEL Long Term Exposure Limit
MAOP Maximum Allowable Operating Pressure
MAWP Maximum Allowable Working Pressure
MEG Monoethylene Glycol
MPN Most Probable Number
MSDS Material Safety Data Sheets
MWP Maximum Working Pressure
NACE National Association of Corrosion Engineers
NG Natural Gas
NGL Natural Gas Liquids
NOGEPA Netherlands Oil And Gas Exploration And Production Association
NORM Naturally Occurring Radioactive Material
NRB Nitrate Reducing Bacteria
o.c Open Cup (Flashpoint)
OB Overboard
OD Outer Diameter
OEM Original Equipment Manufacturer
OIW Oil in Water
OOS Oil on Sand
OPITO Offshore Petroleum Industry Training Organization
PE Polyethylene
PG Pressure Gauge
pH Potential of Hydrogen
PI Pressure Indicator
POSSM Pressurised Oil Sub-Sampling Syringe Method
PP Pour Point
PP Polypropylene
PSV Platform Support Vessel
PSV Pressure Safety Valve
PTW Permit to Work
PVC Polyvinyl Chloride
PVT Pressure Volume Temperature
PW Produced Water
PWRI Produced Water Re-Injection
RVP Reid Vapor Pressure
RVPE Reid Vapour Pressure Equivalent
SADP Shaw Automatic Dewpoint Meter
SCBA Self-Contained Breathing Apparatus
SDI Silt Density Index
SDS Safety Data Sheets
SEM Scanning Electron Microscopy
SFCA Surfactant-free Cellulose Acetate
SG Specific Gravity
Sour Oil Crude oil containing a high amount of sulfur (Typically H2S)
SRB Sulphate Reducing Bacteria
SS Stainless steel
STEL Short Term Exposure Limit
SW Salt Water / Sea Water
TDS Total Dissolved Solids
TEG Triethylene Glycol
TOC Total Organic Content
TPH Total Petroleum Hydrocarbons
TSS Total Suspended Solids
TTCE Tetrachloroethylene
TVC Total Bacteria Count
TVP True Vapour Pressure
v/v Volume per Volume
VOC Volatile Organic Compounds
VPCRx Vapour Pressure by Expansion Method
VPP Vapour Phase Processor
w/v Weight per Volume
w/w Weight per Weight
WEL Workplace Exposure Limit
WI Water Injection
WP Working Pressure
XRD X-Ray Diffraction
XRF X-Ray Fluorescence


Bbbl Billion Barrels (Oil)
Bbl Barrel(s) (Oil)
Bcf Billion Cubic Feet (Natural Gas)
Bcfd Billion Cubic Feet per Day (Natural Gas)
Bcfe Billion Cubic Feet (Natural Gas Equivalent)
boe Barrels (Oil Equivalent)
boe/d Barrels per Day (Oil Equivalent)
boed Barrels per Day (Oil Equivalent)
BOEPD Barrels per Day (Oil Equivalent)
boepd Barrels per Day (Oil Equivalent)
BOPD Barrels per Day (Oil)
BOPE Barrels per Day (Oil Equivalent)
BOPM Barrels per Month (Oil)
bpd Barrels per Day (Oil)
C Celsius / Centigrade
cm Centimetre
F Fahrenheit
ft Foot (feet)
g grams
g/m3 Grams per Cubic Meter
Hz Hertz
in Inch
K Kelvin
kg Kilograms
kg Kilograms per Cubic Meter
kHz Kilohertz
km Kilometre
L Litre
m Meter
Mbbls Thousand Barrels
Mbd Thousand Barrels per Day (Oil)
Mbod Thousand Barrels per Day (Oil)
mg Milligrams
mg/L Milligrams per Litre
mg/m3 Milligrams per Cubic Meter
MHz Megahertz
mL Millilitre
mm Millimetre
MMbbl Million Barrels
MMbd Million Barrels per Day (Oil)
Mmbod Million Barrels per Day (Oil)
Mmboe Million Barrels (Oil Equivalent)
Mmboepd Million Barrels per Day (Oil Equivalent)
MMcf Million Cubic Feet (Natural Gas)
MMcf/d Million Cubic Feet per Day (Natural Gas)
MMcfd Million Cubic Feet per Day (Natural Gas)
Mmcfe Million Cubic Feet per Day (Natural Gas Equivalent)
ppb Parts per Billion
ppm Parts per Million
ppt Parts per Trillion
t Ton
μg Micrograms
μL Microlitre
μm Micrometre (Micron)


This list is for reference only.

Note that abbreviations can have many different meanings accross different locations and industries; if you are unsure, always consult with the author to ensure the correct interpretation.

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