Question

how do petroleum and natural gas occurred
in together

Answer 1

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Your Answer..

Liquid crude oil and natural gas occur together in nature, and so are collectively called “petroleum.” The word derives from the Greek words “petra” and “oleum,” meaning “rock” and “oil,” respectively. ... Petroleum in both gas and oil forms atomically consists of around 95% hydrogen and carbon molecules.

Answer 2

Typically, Natural gas will be found at the top of petroleum reservoirs, where it has been formed by the combined action of methanogenic bacteria (these bacteria produce methane while they decompose organic material) and through catagenesis (the thermal decomposition of kerogen). As marine sediments are buried deep within the earth, high temperatures and pressures lead to varying degrees of the completion of catagenesis, which is the process that produces both petroleum and natural gas.