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How to squeeze more oil out of natural reserves

Creating artificial seismic waves, similar to those that occur during an earthquake, could help squeeze more oil from natural reservoirs, scientists said on Wednesday.
They discovered that in addition to sending tremors that knock down buildings, earthquakes greatly increase the permeability of rocks to transmit fluids including oil.

Scientists explained that shaking increases permeability, and permeability governs how fluid flows through rock, whether it's water or oil, so this has practical implications for oil extraction.

The scientists are planning more studies to better understand what aspects of the shaking makes the permeability increase.

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