Oil products
Gas condensate
Gas condensate is a by-product of the development of gas and oil deposits: a mixture of hydrocarbons released from natural gas during their extraction.
Fractional composition of gas condensate
Gas condensate is a colorless or slightly colored liquid from straw-yellow to yellow-brown in color. The shade depends on the amount of oil impurities. The deeper the condensate is extracted, the more saturated its color is. Otherwise, gas condensate is also called "white oil".

Gas condensate contains the following fractions:

  • gasoline (about 70-85%), which boils at 30-200 ° C;
  • kerosene, boiling at 200-300 °C;
  • highly boiling (contained to a lesser extent).

If the gas lies at a great depth, then kerosene and gas oil predominate in the condensate. Gas condensate, including naphthenes and methane, is the most widespread.
Recovery of gas condensate
SGC is extracted from gas condensate deposits during the development of wet natural gas. Additionally, condensate is obtained from associated petroleum gas produced during oil production, and in small quantities from dry natural gas and at gas treatment plants.

In nature, the gas condensate lies in a gaseous state. Condensate is formed because special conditions are created in the process of producing gas or oil. Gasoline-kerosene fractions lying in the shelves are exposed to high pressure and temperature. Both indicators fall when a gas production company is drilling through the earth's thickness, trying to get to gas-containing shelves. For example, the pressure decreases from 10-60 to 4-8 Mpa. A drop in performance is the condition for condensation to form.

In deposits with a large amount of gas condensate, some fractions (C1-C2) are pumped back in order to prevent the pressure from falling to the atmospheric level and keep it at the right level for gas condensate production. Only hydrocarbons higher than C3 reach the surface. Depending on the quality of natural gas, the concentration of gas condensate can be 5-1000 g/m3. The higher the initial pressure in the thickness of the deposits, the higher the indicators are.
Depending on the method of production and technical characteristics, two types of gas condensate are distinguished:

Stable gas condensate

Stable gas condensate can be factory or field. The first is obtained during production at a gas processing plant, then the crude product is degassed to reduce the propane-butane and gasoline-kerosene fractions to 2-3%. Field stable gas condensate is produced in the deposits, and depending on the composition, the oil product can be light, medium, or heavy.

Stable gas condensate (SGC) is divided into 2 types:

  • Field SGC The product is obtained directly at the mining site.
  • Factory SGC It is produced at GPP (gas processing plants).
Unstable gas condensate
The main task is to convert unstable gas into a stable form. The oil product is purified from impurities and light hydrocarbons (methane, butane, and propane), and degassed to reach it. As a result, it becomes stable – it contains no more than 2-3% propane-butane, gasoline-kerosene, and gas oil fractions.

It also contains hydrocarbons C5 and higher, as well as gases of the methane-butane fraction. They facilitate the extraction of condensate, but for further use, it requires special treatment.
Stable condensate is a raw material for manufacturing enterprises of various directions.
Stable gas condensate is necessary for oil refineries and petrochemical plants.

In the case of refineries that have their own fields, they recover own GC. Condensate, later used for engines, is isolated during the distillation of oil.
Petrochemical plants purchase GC. Accordingly, the cost of GC production can be embedded in any plastic or other object.

Stable gas condensate is used to produce:

  • Automobile gasoline AI–80, AI-92, AI-95;
  • Diesel fuel;
  • Jet fuel;
  • Gasoil.

Gas cncentrate has low detonation resistance, so anti-detonator additives are used in the manufacture of gasoline. The raw materials can only be used for the production of summer fuel without additional processing. For winter fuel, preliminary dewaxing (removal of paraffins) is required. Otherwise, the fuel from the gas condensate quickly turns cloudy and freezes in winter.
Synthetic rubber, resins, plastics, and paint products are made from olefins, aromatic hydrocarbons, and other low molecular weight substances that are formed during the petrochemical processing of gas condensate.
Gas condensate is stored in oil depots and oil storage facilities, which are a complex of underground and surface metal tanks. For the reception and release of raw materials, a railway platform or condensate pipeline is adjacent to them. Unstable gas condensate is stored in horizontal pressure tanks (bulites), while stable gas condensate is stored in vertical tanks.

Delivery to the consumer is carried out using railway tanks, fuel trucks, river and sea vessels in compliance with safety requirements. Railway delivery is expedient and economically justified when transporting large volumes of raw materials over long distances. In other cases, transportation by specialized vehicles is more favorable.
60 tons
from 5000 tons
Tank wagons
Sea tanker
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