What happens to an oil field after the oil is pumped out? Does it just leave a void/cavern? Isn’t it today to leave that because it could collapse?
In: Engineering
Oil isn’t in a big cavern underground. It’s seeped into the rock, and when a hole is drilled through the pressure of the Earth compressing the rock squeezes the oil out. So when there’s no oil left, there’s still plenty of rock down there.
In some formations depleting the oil/gas can cause some ground subsidence, but usually nothing dangerous.
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