Question

Write the procedure of origin of petroleum

Answer 1

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Answer 2

Formation of petroleum

Explanation:

• Petroleum is a complex mixture of hundreds of different hydrocarbons.
• Petroleum originated from slow decomposition of lower forms of marine organisms such as foraminifera, diatoms, algae, ostracods, etc. The process may be summarized as follows :  

•  In coastal waters a large number of marine organism thrive.
• Hence in offshore sedimentary basins huge amount of organic matter is deposited along with muddy sediments.
• Because in the bottom of stagnant water there is deficiency of oxygen the organic matter is protected from oxidation.
• Anaerobic bacteria convert organic mattter into waxy substance.

•  During the million of years of deep burial, the organic matter is converted into oil and gas by slow chemical reactions. It is believed that bacteria, pressure, moderate temperatures, and great lenghts of time play a very important role in the petroleum formation.