Friday, September 20, 2019
Construction of Shale and Shale Gas
What are Shale and Shale Gas?
- Shales are finely granulated sedimentary rocks that are rich sources of petroleum and natural gas.
- Shale gas is a natural gas trapped between shale rocks.
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Shale Gas
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Difference between normal natural gas and shale gas manufacturing
- Normal natural gas deposited inside the earth slowly rises towards the surface of the earth. When approaching the surface of the earth, it is stored.
- These gases come up through the porous rocks of the earth and without rising, the rocks without holes stop their path. In this way, this gas gets trapped at a particular place.
- In contrast, shale gas is formed inside rocks rich in organic matter.
Method of production
- Shale rocks are reached by horizontal mining to extract shale gas, or broken by hydraulic fracturing.
- For hydraulic disintegration, millions of tons of water, small pieces of rock (proppant) and chemical additives are poured into holes within the rocks concerned.
- Some shale rocks have small holes and the fluid poured into them does not come out easily. In such a situation, their reservoir is spread around the well rather than well. Horizontal drilling is used to extract gas from such rocks.
REFINING
- Shell oil is used as fuel. Simultaneously, it is refined by adding hydrogen to it and removing sulfur and nitrogen.
- There are different types of impurities found in shell oil and traditional crude oil.
- A catalytic system is adopted to clear shale gas.