How is petrol pumped out
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we get petrol from crude oil we get crude oil from mining.
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Oil and gas can move through the porous rocks (rocks with gaps between the grains). The oil and gas move upwards from the source rock where they were formed. When they met a layer of cap rock (a rock with no spaces between the grains) the oil and gas are trapped.
A well is drilled so that the crude oil and other liquids travel up the bore hole. When it comes to the surface the crude oil has to be moved closer to where it is needed.
Finding oil and gas trapped deep underground and drilling a well are very complicated and expensive. It costs millions of pound to drill a well and only a few are successful. The liquids found underground can be a complicated mixture of water, crude oil and gas. The crude oil and gas need to be separated before they can be transported safely.
A well is drilled so that the crude oil and other liquids travel up the bore hole. When it comes to the surface the crude oil has to be moved closer to where it is needed.
Finding oil and gas trapped deep underground and drilling a well are very complicated and expensive. It costs millions of pound to drill a well and only a few are successful. The liquids found underground can be a complicated mixture of water, crude oil and gas. The crude oil and gas need to be separated before they can be transported safely.
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