Shale Gas is natural gas that is present in shale rocks Which of the following statement is incorrec...........

Geography Energy

Shale Gas is natural gas that is present in shale rocks. Which of the following statement is incorrect in this context?

sandstones, limestones or shales are kind of sedimentary rock which contain natural gas deposits

All sedimentary rocks often have high permeability, which means that the tiny pores within the rock are well connected and gas can flow easily through the rock

Like oil and coal, natural gas in shales has, essentially, formed from the remains of plants, animals

Shale gas is considered “unconventional gas”, together with “tight gas” from sandstones with low permeability and “coal bed methane

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Explanation:

Shale Gas is natural gas that is present in shale rocks. Throughout the world, different types of sedimentary rock contain natural gas deposits, for example sandstones, limestones or shales. Sandstone rocks often have high permeability, which means that the tiny pores within the rock are well connected and gas can flow easily through the rock. In contrast, shale rocks usually have very low permeability, making gas production more complex and costly.

Not all sedimentary rocks have high permeability. Shale rocks which are also sedimentary rocks does not have high permeability. So second statement is incorrect.