SHALE GAS EXTRACTION

diana05_25
Mind Map by diana05_25, updated more than 1 year ago
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How to extract shale gas
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SHALE GAS EXTRACTION
1 STEP 1
1.1 A vertical well is drilled until the shale layer is reached
1.2 STEP 2
1.2.1 The drill then runs horizontally through the shale formation
1.2.2 STEP 3
1.2.2.1 The fractures created are kept open through the water (90%), with sand (9.5%) and other chemicals (acids, chlorides, salts, etc. 0.5%) allowing the flow of gas
1.2.2.2 STEP 4
1.2.2.2.1 After the gas is extracted, the pressure is released and the water returns to the surface
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