Gaasiväljad

Gaasiväljad, also known as gas fields, are natural formations where significant amounts of natural gas are trapped beneath the Earth's surface. These fields are typically found in sedimentary basins, where layers of rock and sediment have accumulated over millions of years. Natural gas is primarily composed of methane, but it can also contain other hydrocarbons such as ethane and propane, as well as non-hydrocarbon gases like carbon dioxide and nitrogen.

The formation of gaasiväljad is a result of complex geological processes. Over time, organic matter, such as plant and animal remains, is buried and subjected to heat and pressure, leading to the generation of hydrocarbons. These hydrocarbons migrate through porous and permeable rocks until they encounter a trap, which is a geological structure that prevents further migration. The most common types of traps are anticlines, fault traps, and stratigraphic traps.

Extraction of natural gas from gaasiväljad can be done through various methods, including conventional drilling, hydraulic fracturing (fracking), and enhanced recovery techniques. The extracted gas is then processed to remove impurities and is primarily used for energy production, heating, and as a feedstock for the petrochemical industry. Gaasiväljad play a crucial role in meeting global energy demands and are a vital component of the world's energy infrastructure.