When we drill out the gas/oil from under the sea what happens to the land above it, does it cave in?

The above answers are wrong


The oil is not in a cavity like a large cavern it is in porous rock through which the oil can travel. So the well is drilled at a deep point and the oil is forced by the pressure at the depth to come to the surface. The rock is left behind and it can support the full weight of everything above.When we drill out the gas/oil from under the sea what happens to the land above it, does it cave in?
Since the oil and gas will be gushing out under pressure, there is no question of any land caving in.When we drill out the gas/oil from under the sea what happens to the land above it, does it cave in?
this dosnt happen for 2 reasons the oil is actally contained within saturated porous rock its not just a big hole filled with oil and the extract it by pumping sea water into the rock driving the oil up towards the pipe for pumping this way they can control the speed of extraction and get all the oil out
I think they back-fill it with water to push the oil out. But I don't really know
I beleive the last answer is right, the oil isnt actually pumped out but is forced out because of the pressure its under. when the drill is put down there isnt actually a big hole there and so there is nothing to fill after.
I beleive that in order to drain the oil at the bottom which they cant reach they flood the oil chamber with water because the oil rises to the top, making it more accessible, so I dont think it would cave in because it will be full of water anyway.
the truth i believe is that it is not like there is this big hole/cavern or soft earth in which the oil is trapped but rather in spongy/porous rock formations which when the oil is taken out does cave in.





so in the essence, the oil is trapped in pores whose collection forms an oil deposit.





once again, IT IS NOT A BIG HOLE