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Integrated process for detecting and treating toxic gas in crude oil produced by oil field

A toxic gas and crude oil technology, applied in the field of oil and gas exploration and safe production, can solve problems such as human injury, pipeline corrosion, poisonous and harmful, and achieve the effect of ensuring life and health, ensuring safe production, and efficient and harmless treatment

Active Publication Date: 2021-04-27
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But radon and mercury haven't been a concern
Among them, radon is a radioactive gas, which is one of the 19 major carcinogens announced by the World Health Organization. The biological effects of radon are mainly concentrated in respiratory tract tumors, pulmonary fibrosis, and emphysema, and it is the second leading cause of human lung cancer; At present, there is a lack of effective means to deal with it. In addition, mercury is also a common associated gas in crude oil. Mercury is a toxic and harmful gas. On the one hand, it has harmful effects on the human body. Inhalation of high concentrations of mercury can lead to mental-nervous abnormalities, gingivitis, and tremors as the main symptoms. Chronic diseases; on the other hand, mercury has a serious corrosion effect on pipelines during transportation, which has caused multiple major safety accidents

Method used

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  • Integrated process for detecting and treating toxic gas in crude oil produced by oil field
  • Integrated process for detecting and treating toxic gas in crude oil produced by oil field
  • Integrated process for detecting and treating toxic gas in crude oil produced by oil field

Examples

Experimental program
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Effect test

Embodiment 1

[0092] This embodiment provides a device for detecting toxic gases in crude oil produced in an oil field, and its structural diagram is as follows figure 1 shown, from figure 1 As can be seen, the device includes:

[0093] The display screen 1-12, the electric signal amplifier 1-11, the first electric signal processor 1-8, the second electric signal processor 1-9, the third electric signal processor 1-10 and the radon detection room which are connected in sequence 1-1, hydrogen sulfide detection room 1-2 and mercury detection room 1-3;

[0094] The radon detection chamber 1-1 is provided with an alpha detector 1-4, and the alpha detector 1-4 is electrically connected to the input end of the first electrical signal processor 1-8, and the first electrical signal processor The output end of the device 1-8 is electrically connected to the display screen 1-12 via an electric signal amplifier 1-11; the gas inlet of the radon detection chamber 1-1 is provided with a detachable filt...

Embodiment 2

[0107] This embodiment provides a device for harmless treatment of toxic gas in crude oil produced in an oilfield, the schematic diagram of which is shown in figure 2 shown, from figure 2 As can be seen from the figure, the device includes: a radon treatment chamber 2-1 and a hydrogen sulfide rinsing and removal chamber 2-2 connected in sequence;

[0108] The radon treatment chamber 2-1 is provided with several mesh partitions 2-4, and the surface of the mesh partitions 2-4 is provided with biologically active adsorbents 2-9;

[0109] The top of the hydrogen sulfide rinse and removal chamber 2-2 is provided with a shower device 2-5, and the shower device 2-5 is used for spraying sulfuration in the hydrogen sulfide rinse and removal chamber 2-1 from top to bottom. Hydrogen scavengers 2-10.

[0110] In the device provided in this embodiment, the partition is a corrosion-resistant quartz thin plate.

[0111] In the device provided in this embodiment, the biologically active ...

Embodiment 3

[0115] This embodiment provides a device for harmless treatment of toxic gas in crude oil produced in an oilfield, the schematic diagram of which is shown in image 3 shown, from image 3 As can be seen from the figure, the device includes a radon treatment chamber 2-1 and a mercury treatment chamber 2-3 which are connected in sequence;

[0116] The radon treatment chamber 2-1 is provided with several mesh partitions 2-4, and the surface of the mesh partitions 2-4 is provided with biologically active adsorbents 2-9;

[0117] The mercury treatment chamber 2-3 is provided with several harmful gas treatment nets 2-6, and the harmful gas treatment nets 2-6 are filled with melamine-modified bentonite.

[0118] In the device provided in this embodiment, the partition is a corrosion-resistant quartz thin plate.

[0119] In the device provided in this embodiment, the biologically active adsorbent is biologically activated carbon.

[0120] In the device provided in this embodiment, ...

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Abstract

The invention provides an integrated process for detecting and treating toxic gas in crude oil produced in an oil field. The integrated process comprises the following steps: carrying out gas-liquid separation on crude oil produced in an oil field; cooling and depressurizing the gas obtained by gas-liquid separation, and then drying; sequentially carrying out radon, hydrogen sulfide and mercury detection on the dried gas; if it is found that the concentrations of mercury, radon and hydrogen sulfide in the dried gas all reach the standard after detection, conveying the dried gas to a gas conveying pipeline; if it is found that the concentration of radon and hydrogen sulfide or mercury in the dried gas does not reach the standard after detection, carrying out harmless treatment on the radon and hydrogen sulfide or mercury which do not reach the standard in the gas; sequentially carrying out mercury, radon and hydrogen sulfide detection on the gas subjected to harmless treatment, and if the concentrations of mercury, radon and hydrogen sulfide in the gas all reach the standard, conveying the gas subjected to harmless treatment to a gas conveying pipeline; and if the concentration of radon and hydrogen sulfide or mercury in the gas does not reach the standard, continuously performing harmless treatment on the radon and hydrogen sulfide or mercury which do not reach the standard in the gas until the concentration reaches the standard.

Description

technical field [0001] The invention relates to an integrated process for detecting and treating toxic gas in crude oil produced in an oil field, and belongs to the technical field of oil and gas exploration and safe production. Background technique [0002] With the expansion of oil and gas exploration to deep and unconventional areas, more and more unconventional oil and gas resources have been discovered, developed and utilized, which has greatly eased the tension in my country's energy supply. However, these crude oils from deep sources contain more or less toxic and harmful components, and some of them seriously exceed the standard, posing a threat to safe production and life and health. In the past crude oil treatment, hydrogen sulfide has attracted attention because of its abnormal smell, and many natural gas with high hydrogen sulfide content have been desulfurized. But radon and mercury have not attracted much attention. Among them, radon is a radioactive gas, whi...

Claims

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Application Information

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IPC IPC(8): G01N33/28G01N33/00G01N1/34G01N1/28C10G53/02B01D53/04B01D53/78B01D53/52
CPCG01N33/2823G01N33/2841G01N33/287G01N33/0011G01N33/0044G01N33/0045G01N33/0055G01N33/0036G01N1/28G01N1/34C10G53/02B01D53/04B01D53/78B01D53/52C10G2300/1033C10G2300/201B01D2257/11B01D2257/602
Inventor 陈志勇朱光有杨敏曹颖辉闫磊王珊李婷婷李洪辉
Owner PETROCHINA CO LTD
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