4952293
SHALE GAS EXTRACTION
- STEP 1
- A vertical well is drilled
until the shale layer is
reached
- STEP 2
- The drill then runs
horizontally through
the shale formation
- STEP 3
- 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
- STEP 4
- After the gas is
extracted, the
pressure is released
and the water returns
to the surface
- After the gas is
extracted, the
pressure is released
and the water returns
to the surface
- 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
- The drill then runs
horizontally through
the shale formation
- A vertical well is drilled
until the shale layer is
reached
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