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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. Shale Gas 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 ...