Midstream

Midstream Glossary

Definitions of words and terms used in the gas processing industry.
For questions regarding incorrect/outdated entries or suggestion for adding additional terms, please contact Martin Erne

Term
Definition
Common Use Examples
frac spread

Difference in value of natural gas liquid products as a liquid and as fuel value in natural gas. These are used to determine optimum recoveries in a gas plant.

frac spread
Difference in value of natural gas liquid products as a liquid and as fuel value in natural gas. These are used to determine optimum recoveries in a gas plant.

fractionation

The process used to describe separation of hydrocarbon components into two or more products through distillation.

fractionation
The process used to describe separation of hydrocarbon components into two or more products through distillation.

fractionation facilities

The plant where the fractionation process is performed.

fractionation facilities
The plant where the fractionation process is performed.

fractionator

The column that separates hydrocarbon components into two or more products through the distillation process.

fractionator
The column that separates hydrocarbon components into two or more products through the distillation process.

freeze valve

A specially constructed and calibrated valve designed and used solely for determining the water content in the propane product. See ASTM D-2713.

freeze valve
A specially constructed and calibrated valve designed and used solely for determining the water content in the propane product. See ASTM D-2713.

freezing point

The temperature at which a liquid becomes a solid.

freezing point
The temperature at which a liquid becomes a solid.

full well stream

The total flow stream or effluent from a producing well containing all the constituents of the reservoir fluids

full well stream
The total flow stream or effluent from a producing well containing all the constituents of the reservoir fluids

gas

form of matter having no definite shape or volume unless confined.

gas
A form of matter having no definite shape or volume unless confined.

gas blanket

The gas that is added to the head space in order to increase the pressure that exists above the liquid product vapor pressure.

gas blanket
The gas that is added to the head space in order to increase the pressure that exists above the liquid product vapor pressure.

gas cap

The natural gas zone located above theoil zone in a reservoir.

gas cap
The natural gas zone located above the oil zone in a reservoir.

gas chromatograph

An analytical instrument which separates mixtures of substances into identifiable components.

gas chromatograph
An analytical instrument which separates mixtures of substances into identifiable components.

gas condensate reservoir

A hydrocarbon reservoir with natural gas which will yield condensate.

gas condensate reservoir
A hydrocarbon reservoir with natural gas which will yield condensate.

gas constant

A number which mathematically is the product of the total volume and the total pressure divided by the absolute temperature for one mole of any ideal gas or mixture of ideal gases at any temperature.