Natural gas is a colorless, odorless and non-toxic gas in its normal state at atmospheric temperature and pressure. which is lighter than air When a leak occurs, it will quickly spread through the atmosphere.
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Note: Natural gas for use as fuel in cars. will be added to the scent in order to check whether there is a gas leak or not source of natural gas
When food waste is fermented in the digester, biogas is generated which is flammable. Likewise, when there is a large amount of fossils Hundreds of millions of years ago The remains of those animals will also produce combustible gasses. During that time there was a natural change in the earth’s crust. Causing the remains of those animals not on the surface of the earth like in the past coupled with heat and pressure Until the remains of those animals become crude oil. and natural gas at present composition of natural gas
Natural gas contains various hydrocarbons, including methane, ethane, propane, butane, pentane, hexane and other hydrocarbon compounds, as well as other impurities such as carbon dioxide. Hydrogen sulfide, helium, nitrogen and steam, etc.
Natural gas extracted has two components:
- The hydrocarbon compounds are methane, ethane, propane, butane and liquefied gas.
- The non-hydrocarbon compounds are carbon dioxide. Hydrogen sulfide, mercury vapor and water vapor
2.8 Exploration for oil or natural gas resources
Nowadays, couples who are expecting a baby often do an ultrasound to see if their baby is a boy or a girl. Or check to see if there is something wrong with his child. An ultrasound involves sending high-frequency sound waves down your abdomen. Exploration for oil or natural gas is the same principle. The only waves used are seismic waves generated by explosions.
Oil and natural gas are not everywhere. and can move away
Because oil and natural gas originate beneath the earth. with high pressure and heat This causes oil and natural gas to move to areas with less heat and pressure. and if there is no rock layer Oil and natural gas can move to the surface of the earth. But in general, oil and natural gas cannot travel to the Earth’s surface. because there is a stone blocking the movement
In nature, crude oil and natural gas are formed from sedimentary rocks with a high organic content called source rock, which is rock formed by millions of years of deposition of sedimentary and organic matter. before Both crude oil and natural gas can migrate away from the underlying sedimentary rocks. i can live in a new place Because the underground pressure is very high. That is, crude oil and natural gas will try to move from areas of high pressure to to areas of less pressure (from deeper to shallower), along clear and unobstructed paths Generally tend to move in porous or cracked rock layers, these rocks are called reservoir rocks, where crude oil and natural gas enter the gaps in the reservoir. However, the reservoir is only a passageway. If there is nothing to block Crude oil and natural gas will continue to escape until they can emerge on the surface of the earth. A rock that does not tolerate crude and Natural gas moves through it is called a barrier rock, so exploration of subsurface crude oil and natural gas must also look for barrier rocks.
The vast majority of crude oil and natural gas reservoirs contain three types of rock composition: source rock, reservoir rock, and block rock. If there is no blocking stone Crude oil and natural gas will escape to Earth’s surface without being contained. The rock structure of many large crude oil and natural gas fields will be capped, or dome shaped.
