Automatic custody transfer; see LACT
Acid gas
American Gas Association
American Institute of Mining, Metallurgical, and Petroleum Engineers
American Iron & Steel Institute
American National Standards Institute
American Petroleum Institute—National Trade Association of United States Petroleum Industry, a private standardizing and lobbying organization
American Society of Mechanical Engineers
American Society for Testing and Materials
Automatic tank gauging system
Atmosphere
Barrel (42 U.S. gallons). The oil industry standard for volumes of oil and its products; always reduced to 60 F and vapor pressure of the liquid
Best efficiency point (for a centrifugal pump)
Brake horsepower
Bureau of Land Management—U.S. government agency that regulates petroleum production onshore
Barrels of liquid per day
Formation volume factor
Barrels of oil per day
Barrels per day
Barrels of reservoir fluid
Basic sediment and water; water and other contaminants present in crude oil
Benzene, toluene, ethyl benzene, and xylene
Billions of standard cubic feet
Barrels of stock-tank oil
British thermal unit
Barrels of water per day
Methane
Ethane
Propane
Butanes
Pentanes
Hexanes
Hexanes and heavier
Heptanes
Heptanes and heavier
Octanes
Clean Air Act Amendments
Characterization factor
Cubic feet per minute
Controller input
Chemical Manufacturers Association
Corrected meter volume
Controller output
Centipoise
Control valve
Continuous-welded
API gravity
Fahrenheit
Celsius
Department of Energy
Department of Transportation
Experienced-based HAZOP
Environmental control technology
Enhanced oil recovery
Environmental Protection Agency
Electro optical distance ranging
Equation of state
Electric resistance welded
Feet per second
Federal Energy Regulatory Commission
Fire Insurance Association
Factory Mutual Association
Fiber-reinforced plastic
Formation volume factor
Free-water knockout
U.S. gallon
Gross heating value
Gas–liquid chromatography
Gas–liquid ratio, expressed as scf/bbl
Gulf of Mexico
Gas–oil ratio, combined gas released from stage separation of oil, expressed as scf/Bsto
Gas–oil separation plant
Gallons per hour
Gallons liquefiable hydrocarbons per 1000 scf of natural gas
Gallons per minute; describes liquid flow rate
Gas Processors Supplier Association
Grain (7000 gr = 1 lb)
Gas–solid chromatography
Hazards identification
Hazards Operability Study
Hydrocarbon
Higher combustion limit
Higher heating value
High pressure
Horsepower
Horsepower-hour
Hydrostatic tank gauging
Water
Hydrogen sulfide
Isobutane
Isopentane
Inside diameter
Instrument Society of America
International Standards Organization
Joule–Thomson (constant enthalpy) expansion
Kilowatts
Kilowatts-hour
Lease automatic custody transfer
Level control
Lower combustion limit
Level control valve
Pounds
Pound mole
Light emitting diode
Lowest expected temperature
Lower heating value
Log mean temperature difference
Liquefied natural gas; primarily C1 with lesser amounts of C2 and C3
Low pressure
Liquefied petroleum gas, C3-C4 mix
Milliampere
Maximum allowable working pressure
Sloppy equivalent for Mscf
Thousand cubic feet per calendar day
Meter factor
Ministry of Oil and Gas (Indonesia)
Same as MMscf
Millions of standard cubic feet
MMscf per day
Minerals Management Service
Minimum pipeline temperature
Thousand standard cubic feet
Mscf per day
Molecular weight
Nitrogen
National Association of Corrosion Engineers
National Bureau of Standards, now NIST
Normal butane
Normal pentane
National Fire Protection Association
Natural gas liquids; includes ethane, propane, butanes, pentanes, or mixture of these
Net heating value
National Institute for Standard and Technology, formerly NBS
Naturally occurring radioactive materials
National Pollution Discharge Elimination System
National pipe standard
Net positive suction head
Net positive suction head available
Net positive suction head required
Outer continental shelf
Outside diameter
Optical reference line method
Occupational Safety and Health Administration
Optical triangulation method
Pressure control valve
Positive displacement (e.g., a PD pump)
Polyethylene
Proportional-integral
Proportional-integral-derivative
Polypropylene
Peng–Robinson equation of state
Parts per million
Parts per million by volume
Parts per million by weight
Pounds per square inch
Pounds per square inch absolute
Pounds per square inch gauge
Pounds of salt per thousand barrels of clean crude oil
Prover true volume
Petroleum Authority of Thailand
Polyvinyl chloride
Redlich–Kwong equation of state
Recommended practice (e.g., API RP 14 E)
Revolutions per minute
Reid vapor pressure
Sulfur
Submerged arc welded
Sediment and water
Supervisory control and data acquisition
Standard cubic foot; means of expressing volume of natural and other gases. The volume at 60 °F and 14.696 psia (ideal gas) for process calculations. For sales purposes, it may be defined differently by law in some states in the United States
Standard cubic feet per minute
Shut-down valve
Safe Drinking Water Act
Shrinkage factor
Specific gravity
Abbreviation for (1) shut in, (2) Système International (French for“International System of Units”)
Set point
Society of Petroleum Engineers
Sulfate-reducing bacteria
Stock-tank barrels of crude oil
Trans-Alaska Pipeline System
True boiling point
Triethylene glycol
True vapor or bubble-point pressure
Tetra Ethylene Glycol
Usdin-McAuliffe form of the SRK equation of state
Underground injection control
Universal Oil Products K factor
United States Geological Survey
Vapor–liquid equilibrium
Vapor recovery unit
Water column (e.g., hw = 80 in. WC)
Waste-management technology
Water–oil ratio
Water–oil ratio