Question

how petrolim is extrated from earth ​

Answer 1

Answer:

petroleum is extracted by fractional distillation

Answer 2

Explanation:

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RESOURCE LIBRARY | ENCYCLOPEDIC ENTRY

Petroleum

Petroleum, or crude oil, is a fossil fuel and non-renewable source of energy.

GRADES

9 - 12, Higher Ed

SUBJECTS

Biology, Ecology, Health, Earth Science, Geology, Experiential Learning, Social Studies, Economics

CONTENTS

18 Photographs, 1 PDF

SHOW INFO/HIDE INFO

Petroleum, also called crude oil, is a fossil fuel. Like coal and natural gas, petroleum was formed from the remains of ancient marine organisms, such as plants, algae, and bacteria. Over millions of years of intense heat and pressure, these organic remains (fossils) transformed into carbon-rich substances we rely on as raw materials for fuel and a wide variety of products.

Photograph by Rebecca Hale

HIDE_NAVIGATION

Petroleum

Oil Reserves

OPEC

West Texas

Oil Location

Wildcatters

Developmental Dri...

National Geograph...

Directional Drilling

Thirsty Bird

Oil Platform

Oil Refinery

Filling Up

Nigerian Clinic

Prosthetic Limbs

Oil Spill

Greenhouse Effect...

Supply and Demand

Biofuel

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ENCYCLOPEDIC ENTRY VOCABULARY

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Millions of years ago, algae and plants lived in shallow seas. After dying and sinking to the seafloor, the organic material mixed with other sediments and was buried. Over millions of years under high pressure and high temperature, the remains of these organisms transformed into what we know today as fossil fuels. Coal, natural gas, and petroleum are all fossil fuels that formed under similar conditions.

Today, petroleum is found in vast underground reservoirs where ancient seas were located. Petroleum reservoirs can be found beneath land or the ocean floor. Their crude oil is extracted with giant drilling machines.

Crude oil is usually black or dark brown, but can also be yellowish, reddish, tan, or even greenish. Variations in color indicate the distinct chemical compositions of different supplies of crude oil. Petroleum that has few metals or sulfur, for instance, tends to be lighter (sometimes nearly clear).

Petroleum is used to make gasoline, an important product in our everyday lives. It is also processed and part of thousands of different items, including tires, refrigerators, life jackets, and anesthetics.

When petroleum products such as gasoline are burned for energy, they release toxic gases and high amounts of carbon dioxide, a greenhouse gas. Carbon helps regulate the Earth’s atmospheric temperature, and adding to the natural balance by burning fossil fuels adversely affects our climate.

There are huge quantities of petroleum found under Earth’s surface and in tar pits that bubble to the surface. Petroleum even exists far below the deepest wells that are developed to extract it.

However, petroleum, like coal and natural gas, is a non-renewable source of energy. It took millions of years for it to form, and when it is extracted and consumed, there is no way for us to replace it.

Oil supplies will run out. Eventually, the world will reach “peak oil,” or its highest production level. Some experts predict peak oil could come as soon as 2050. Finding alternatives to petroleum is crucial to global energy use, and is the focus of many industries.