What is a gas condensate field?

Gas condensate fields is a single subsurface accumulation of gaseous hydrocarbons including gasoline and kerosene vapors and, less frequently, components with a higher molecular weight. In case of isothermal reduction of the formation pressure, part of them condenses in the form of gas condensate.

What is field condensate?

Condensate is a mixture of light liquid hydrocarbons, similar to a very light (high API) crude oil. It is typically separated out of a natural gas stream at the point of production (field separation) when the temperature and pressure of the gas is dropped to atmospheric conditions.

What is the purpose of natural gas condensate?

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. In particular, condensate is frequently mixed with bitumen from oil sands to create dilbit.

What is the difference between NGL and condensate?

The key difference between condensate and natural gas liquids is that condensate is the end product of a condensation reaction, whereas natural gas liquid is the low-density mixture of hydrocarbon liquids that occurs as gaseous compounds in the raw natural gas that forms from many natural gas fields.

Where is condensate used?

Condensates are used as refinery feedstocks for the manufacture of products such as petrol (gasoline), jet fuel, diesel and heating fuels. Some condensates, particularly those with a high paraffin content, are used for the manufacture of ethylene.

What is the main component of the condensate?

Condensate is mainly composed of propane, butane, pentane and heavier hydrocarbon fractions. The condensate is not only generated into the reservoir, it is also formed when liquid drops out, or condenses, from a gas stream in pipelines or surface facilities.

Is condensate liquid or gas?

Condensates are the liquid form of these hydrocarbons that take their name from the process of removing them from the gas stream by processing with specific temperature and pressure.

What is gas condensate reservoir?

Gas condensate reservoirs are gas systems that reside in reservoirs with the original temperatures lying between the critical temperature, TC, and the cricondentherm (Tmax in Figure 2.11).

Is condensate a gas or oil?

Condensate is an oil, but an extremely light one. Condensate is, as mentioned, a byproduct of hydrocarbon drilling and it may be in either liquid or gas form, depending on the pressure and temperature at the time it’s released. It is nearly transparent and almost odorless.

What is condensate for?

Uses. Condensates are used as refinery feedstocks for the manufacture of products such as petrol (gasoline), jet fuel, diesel and heating fuels. Some condensates, particularly those with a high paraffin content, are used for the manufacture of ethylene.

Is condensate gas or liquid?

What color is condensate?

ANSI A13. 1-2015

Color Code
Fluid ANSI 13.1 – 1996 ANSI 13.1 – 2015
Condensate Yellow/Black Green/White
Cooling Water Green/White Green/White
Cottonseed oil Yellow/Black

What is gas condensate?

Gas condensate is a hydrocarbon liquid stream separated from natural gas and consists of higher-molecular-weight hydrocarbons that exist in the reservoir as constituents of natural gas but which are recovered as liquids in separators, field facilities, or gas-processing plants.

What is the difference between plant and field condensate?

Plant and Field Condensate When produced at the wellhead and run through a stabilizer it is known as “field” or “lease” condensate. In dry gas or condensate wells, condensate remains suspended in the gas stream until separated at gas processing facility, thus earning the name “plant” condensate or “natural gasoline”.

What is a single phase gas condensate reservoir?

Gas condensate reservoirs are gas systems that reside in reservoirs with the original temperatures lying between the critical temperature, T C, and the cricondentherm (T max in Figure 2.11). If the original reservoir pressure is greater than the dew-point pressure, then a single-phase gas system will occur in the reservoir as in Figure 2.15.

What is happening in the reservoir of a gas condensate system?

What is happening in this simple example is that the heaviest component in our system (water vapor) is condensing out of the gas phase (air mixture) and forming a second phase (liquid water) in the two-phase region. This is essentially what is occurring in the reservoir of a gas condensate system but under isothermal conditions.