4/28/2023 0 Comments Oil exporter countriesWithin this sector, light vehicles account for about 44 % of consumption, heavy vehicles about 32 %, aircraft 12 % and shipping 12 %. The transport sector consumes more oil than any other sector. Oil meets about 33 % of total world energy demand. In 2019, oil was the largest energy source globally, followed by coal and gas. This results in efficient recovery of the oil, and the gas is stored for possible recovery in the future. Reinjection is often used to maintain reservoir pressure and displace the oil. On some fields, gas is reinjected into the reservoirs. Some of the gas is used to generate power on the fields, and small amounts are flared for safety purposes. Naphtha and condensate are liquid at room temperature, while the lighter wet gas components can be made liquid either by cooling or by adding pressure. In addition there are heavier condensates which some classify as a separate product. Wet gas, or NGL (Natural Gas Liquids), consists of a mixture of heavier gases (ethane, propane, butane and naphtha). Dry gas is often referred to as natural gas, and consists mainly of methane, but also a little ethane. When necessary, the gas is separated from the oil before the rich gas is treated in a processing facility that separates the dry and wet gas components. Rich gas, or crude natural gas, is a mixture of various gases. The composition also determines how light or heavy (viscous) the oil is. The quality of the oil depends on several factors, for example how much and which substances, such as wax and sulphur, it contains. The composition varies from field to field. The production from different reservoirs varies from oil with low gas content to almost dry gas (methane with only small amounts of other gases).Ĭrude oil is a fluid that is a combination of different types of hydrocarbons. To get marketable products, the production from the reservoirs must be separated and treated. The production from different reservoirs (the well stream) contains oil, gas and water in various combinations.
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