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Gas absorption device and collection method of gas to be detected

A gas absorption and absorption device technology, which is applied in the field of oil and gas geochemical exploration, can solve problems such as system error, low absorption rate, and absorption rate change, and achieve the effect of ensuring no loss, integrity, safety and environmental safety

Inactive Publication Date: 2022-02-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With this method, due to the frequent use of the syringe, system errors will inevitably occur in multiple operations; second, due to repeated insertion of the syringe, a small amount of air will be brought into the crude oil tank, causing dilution of the gas and affecting the subsequent gas Direct measurement of chromatographic and color quality analysis data; third, the absorption rate is low, and a pipeline leads to the absorption liquid. Due to human factors, the rate of pushing the syringe is different, and the absorption rate will change; the fourth is no waste gas. Recycling, the exhaust gas is directly discharged into the environment, which has an impact on the experimenters and the environment

Method used

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  • Gas absorption device and collection method of gas to be detected
  • Gas absorption device and collection method of gas to be detected
  • Gas absorption device and collection method of gas to be detected

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] This embodiment provides a gas absorption device. figure 1 A schematic structural diagram of a gas absorption device according to an embodiment of the present invention is shown. Such as figure 1 As shown, the gas absorption device includes:

[0064] The main body 1 of the absorption device is used to contain the absorption liquid and contain the gas to be measured;

[0065] The main opening is arranged on the top of the main body 1 of the absorption device;

[0066] A plug 6 for closing the main opening;

[0067] The first side opening 2 and the second side opening 3 are respectively arranged on the side wall of the main body 1 of the absorption device;

[0068] A spiral tube 4, one end of which is connected to the first side opening 2, and the other end is close to the bottom of the main body 1 of the absorption device;

[0069] A portion of the spiral tube 4 near the other end is provided with a plurality of openings 5;

[0070] The part near the other end of t...

Embodiment 2

[0078] This embodiment provides a method for collecting the gas to be measured, the collection method adopts the gas absorption device of Embodiment 1, and the collection method includes:

[0079] 1) Clean all parts, dry the glassware directly, and dry the parts of other materials at room temperature; pour the absorption liquid into the main body 1 of the absorption device, and make the openings 5 ​​of the spiral tube 4 be located below the liquid level of the absorption liquid;

[0080] 2) To close the main opening and the second side opening 3 (use plugs adapted to the respective openings), connect the gas tank in which the gas to be measured is crude oil topping gas to the first side opening 2 through a rubber tube, and the rubber tube A hemostatic clamp is used in the middle to control the switch. After the connection is completed, the gas to be tested in the gas tank to be tested is input through the first side opening 2 by means of heating (optional heating at different a...

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Abstract

The invention discloses a gas absorption device and a collection method of a gas to be detected. The gas absorption device comprises: an absorption device main body for holding an absorption liquid and holding the gas to be detected; a main opening formed in the top of the absorption device main body; a plug used for closing the main opening; a first side opening and a second side opening respectively formed in the side wall of the absorption device main body; and a spiral pipe. One end of the spiral pipe is connected with the first side opening, and the other end is close to the bottom of the absorption devicemain body; and a plurality of open holes are formed in the part, close to the other end, of the spiral pipe. The method is suitable for the field of near-surface oil and gas geochemical exploration, is suitable for extracting aromatic hydrocarbon components in crude oil tank head gas and free gas in soil, can obtain real and effective results, and meets the requirements of scientific research and production.

Description

technical field [0001] The invention belongs to the field of oil and gas geochemical exploration, and more specifically relates to a gas absorption device and a method for collecting gas to be measured. Background technique [0002] The basic theory of oil and gas geochemical exploration holds that hydrocarbons in underground oil and gas reservoirs can seep into surface soil approximately vertically. In the near-surface soil above the reservoir, the addition of vertical micro-seepage hydrocarbons results in the formation of hydrocarbon anomalies with relatively higher concentrations of hydrocarbons than the background hydrocarbon concentration in the periphery of the reservoir. The underground oil and gas prospects can be predicted by using the abnormal marks left by the migrating hydrocarbons on the surface. Therefore, workers in oil and gas geochemical exploration have always taken hydrocarbons as the main measurement target. [0003] At present, in oil and gas geochemic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/02G01N1/24
CPCB01D53/18B01D53/1493B01D53/1487B01D53/02G01N1/24B01D2252/205B01D2253/102
Inventor 宁丽荣孙长青荣发准卢丽王国建陈银节
Owner CHINA PETROLEUM & CHEM CORP
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