How to extract oil

How to extract oil



Contents

  • 1 Locate the oil
  • 2 digging the ground
  • 3 Test
  • 4 cracking
  • 5 Maintain the state of the Earth
  • 6 References

Locate the oil

Geologists conduct a seismic survey to search for underground oil tanks. Responsibility for assessing the location of wells rests with petroleum engineers , while reservoir engineers specialize in estimating repair rates before the extraction stage, and the technique of creating underground explosions and monitoring seismic interaction is used to provide basic information about the structure Geology is underground, and there are other, less dangerous, ways to obtain the necessary information about the Earth, but it is less used. Crude oil extraction usually begins by digging wells in underground tanks once they are found through A geologist noticed, and often many are digging wells in the same reservoir, [1] In addition to that there are a variety of methods used by geologists in order to find the place of oil, and these methods as follows: [2]
  • Ground gravitational measurements.
  • Satellite imagery.
  • Magnetic measuring devices.

Dig the ground

First, the drilling rig is brought to the location of the oil, between 20-30 trucks are brought in, and the necessary infrastructure is prepared to extract the oil and natural gas trapped more than 1.61 km below the surface of the earth, and the well is drilled directly into the ground below the oil room The first stage is the drilling of a so-called surface crater that is 30 meters deep below the deep aquifers, and a steel cap is installed on the well that has been dug so that the groundwater is not polluted, [3] and in the next stage a long hole is drilled, And when reaching a depth of 304.8 meters below the surface of the earth and above the place For those where oil and natural gas are present, the drilling process is directed to take place horizontally and externally, the distance may be 1.6-3.2 km, and this process requires advanced technology to be able to drill a hole in the same time interval at a depth of 3 meters to a distance of 3.2 kilometers.[3]

the test

At this stage, the drill pipe is removed once the target distance has been reached, the steel tubes are pushed to the bottom, and the well well fixed, and then tests are performed to ensure that the pipes do not leak oil or natural gas before the excavators can dig and open the underground oil and gas tanks , And a rifle is usually landed inside the ground, and the rock layer is shot in the deepest part of the well, which creates cracks in the rock for easy access to oil and natural gas. [3]

Cracker

The release of oil and gas trapped in the rock after the oil well is opened, using the Fracking fluid which consists of 99.5% water and sand and 0.5% of the chemicals, and is pumped at high pressure areas in the openings and cracks That were created in the oil shale to release the oil, and upon completion of the cracking process, natural gas and oil flow out from the wellbore, and the cracking fluid is recycled and recovered, and used in subsequent operations. [3]

Maintaining the ground condition

There is a law that regulates the process of extracting oil, and stipulates that the land must return to the state it was in before starting drilling operations, with no marks left indicating the presence of oil on the area where the drilling was made, where the same spot can be used from Land to do other activities in the future. [3]

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