What is condensate fractionation?
This condensate can be used to produce varieties of useful products by refining. Distillation column is used for the separation of different fraction of condensate. Heavy part of the condensate is used as diesel whereas the lighter parts are divided into different fractions for different uses.
What is gas fractionation?
Natural Gas Liquids (NGLs) fractionation is the process used in gas processing plants to separate hydrocarbon mixtures from natural gas into individual products. These NGLs are ethane, propane, butane, and pentanes as well as natural gasoline found in natural gas.
How does NGL fractionation work?
NGLs are fractionated by heating the mixed NGL stream and processing them through a series of distillation towers. Fractionation takes advantage of the differing boiling points of the various NGL components. As the NGL stream is heated, the lightest (lowest boiling point) NGL component boils off first and separates.
What is LNG condensate used for?
Use as a diluent in heavy oil production Because condensate is typically liquid in ambient conditions and also has very low viscosity, condensate is often used to dilute highly viscous heavier oils that cannot otherwise be efficiently transported via pipelines.
How a gas processing plant works?
Natural-gas processing plants purify raw natural gas by removing contaminants such as solids, water, carbon dioxide (CO2), hydrogen sulfide (H2S), mercury and higher molecular mass hydrocarbons. Some of the substances which contaminate natural gas have economic value and are further processed or sold.
Is condensate and NGL the same?
Natural gas liquids (NGL) and condensate can generally be used interchangeably. NGLs and condensates both comprise a mixed stream of hydrocarbons representing light hydrocarbons, such as ethane, and heavier hydrocarbons, such as pentane.
What is fractionated process?
Fractionation processes are processes of separation of mixtures of liquids, gases or solids into their components. Fractional separation is based on differences in a specific property of the individual components. Fractionation processes are physical processes, where phase transition is involved.
What is the difference between gas and condensate?
A typical ‘natural gas liquids’ breakdown would be about 83% gaseous liquids, and 17% natural gasoline (it varies, and can be as much as 22%). Condensate refers to a specific portion of the ‘Natural Gas Liquids’. It is more usually referred to as ‘lease condensate’.
How an oil and gas plant works?
Hydrocarbons are brought to the surface by drilling through the cap rock and into the reservoir. Once the drill bit reaches the reservoir, a productive oil or gas well can be constructed and the hydrocarbons can be pumped to the surface.
What is oil and condensate removal from natural gas?
Oil and Condensate Removal. In order to process and transport associated dissolved natural gas, it must be separated from the oil in which it is dissolved. This separation of natural gas from oil is most often done using equipment installed at or near the wellhead.
What is the separation process of natural gas?
The separation process removes the liquids (condensate), sulfur (typically using Amines), and other impurities from the gas. Primary separation consists of a screen that the natural gas liquids pass through to remove any particulates that are in the liquid. This usually runs at pressures between 100 and 170 psig.
What is the difference between an gas well and condensate well?
Gas wells typically produce raw natural gas by itself, while condensate wells produce free natural gas along with a semi-liquid hydrocarbon condensate. Whatever the source of the natural gas, once separated from crude oil (if present) it commonly exists in mixtures with other hydrocarbons; principally ethane, propane, butane, and pentanes.
How is natural gas transported to the processing plant?
The extracted natural gas is transported to these processing plants through a network of gathering pipelines, which are small-diameter, low pressure pipes. A complex gathering system can consist of thousands of miles of pipes, interconnecting the processing plant to upwards of 100 wells in the area.