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For questions regarding incorrect/outdated entries or suggestion for adding additional terms, please contact Martin Erne
A mathematical technique used to combine two chromatographic analyses through a relationship of the heaviest components.
The allocation calculation used the hexanes plus from the TCD to prorate the hexanes plus components on the FID. See GPA 2186 and GPA 2286 for more details.
The maximum rate, composition or process variable permitted by contract or regulatory body.
The operator had to curtail production as they approached the state allowable for the well.
Any of several compounds such as, but not limited to, monoethanolamine, HOC2H4NH2, (MEA), employed in treating natural gas.
The amines are generally used in water solutions to remove hydrogen sulfide and carbon dioxide from gas and liquid streams. The amine is circulated through the tower to absorb the acid gases, heated to desorb the acid gases, cooled and recirculated through the tower.
A unit designed to remove the sour components of a stream with a contactor and a regenerator to reuse the amine.
The amine plant was designed to use a primary amine (monoethanolamine or MEA) to remove all of the sour components of the feed gas.
Non-combustible residue from the gasification or burning of coal or a heavy hydrocarbon.
The liquid hydrocarbons are burned to reduce the sample aliquot to ash for subsequent analytical testing.
Light hydrocarbons produced as a vapor from an oil reservoir.
The associated gas from the production separator increased as the operating pressure decreased.
The pressure exerted on the earth by the earth's atmosphere. A pressure of 760 mm of mercury, 29.92 inches of mercury, or 14.696 psia is used for some measurements.
Atmospheric pressure may also refer to the absolute ambient pressure at any given location. The absolute pressure (Psia) is the sum of the gauge pressure (Psig) and the atmospheric pressure.
The pressure held on a piece of equipment or a system through which a fluid (gas and/or liquid) is flowing.
Without sufficient back pressure, the liquid may flash in the metering equipment and cause measurement error.
A reversal of flow through a piece of equipment.
The chromatograph uses a backflush to group heavier hydrocarbons and reduce analysis time.
A device used in chromatograph plumbing to reverse flow through a column.
The backflush valve was plumbed to send the hexanes plus components to the detector to be displayed on the chromatogram as a single peak.
A unit of liquid volume measurement which in the US petroleum industry equals 42 U.S. liquid gallons. Other applications may define different volumes for a barrel, such as 55 U.S. liquid gallons in the chemical industry.
This field produces approximately 25,000 barrels of crude oil per day.
The defined pressure and temperature used in the custody transfer of measurement.
Base conditions can be defined by regulatory parties, contractual obligations, and/or company SOP.
A container that is controlled to regulate the temperature of any system placed in or passing through it.
The Reid Vapor Pressure liquid chamber is placed in a bath, maintained at 100°F.
An abbreviation of "billion cubic feet." In the United States, a billion is a thousand million, or 109.
This particular field produces over 200 bcf of natural gas per year.
A gas phase in a vessel above a liquid phase that is not the source of the liquid phase used for protecting the liquid from air contamination, for reducing the hazard of detonation, or for pressuring the liquid.
Nitrogen is commonly used as a gas blanket over highly volatile liquids. It is often used in batch processing where tanks are constantly being filled and emptied.
To remove or drain liquid, gas, or other contents at a slow rate from a piece of equipment or pipe.
The drip pot has a bleed valve used to drain the accumulated liquids to the skimmer system.
A small tank in which liquids are accumulated and periodically drained by applying gas or air pressure above the liquid level.
A blow case is usually located below a pipeline or other equipment at a location where a pump is not convenient.
The act of partially or fully emptying or depressurizing a vessel or pipeline. May also refer to the discarded material.
The discarded material is typically called blowdown.
A closed vessel used to heat a liquid.
The boiler produced 650 psig steam.
The temperature at a given pressure at which a liquid begins to vaporize.
The boiling point of water is 212°F atmospheric pressure at sea level.
The pressure measured in a well at a depth which is at the mid-point of the thickness of the producing zone.
The bottom hole pressure was insufficient to lift the reservoir fluid to the surface.
The temperature measured in a well at a depth which is at the mid-point of the thickness of the producing zone.
Due to the high bottom hole temperature the production string required very expensive materials. *Bottom hole temperature doesn’t have major application other than in PVT studies.
The heavy liquid or residual matter which is withdrawn from the bottom of a distillation tower, or other vessel, during processing or while in storage.
Bottoms are the heaviest product remaining in the liquid phase after distillation.
The movement of vapor in or out of a vessel because of a liquid level change or a change of temperature or atmospheric pressure.
Regarding flashing emissions, breathing losses typically refers to the change in pressure and temperature. Working losses are associated with change in level. It is essential to manage the breathing when working with an internal combustion engine.
A mathematical technique used to combine two chromatographic analyses through a relationship of common components other than the heaviest components.
Pentanes from the TCD and FID were used to calculate the factor used in the bridging calculation. See GPA 2186 and GPA 2286 for more details.
