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Gas composition and carbon isotope automatic analysis device in thermal simulation gold tube of hydrocarbon source rock

An automatic analysis device and carbon isotope technology, which is applied in the field of thermal simulation test of hydrocarbon source rock, can solve the problems of low work efficiency, low analysis precision, and difficulty in controlling the injection volume, so as to reduce the work intensity, improve the analysis efficiency, The effect of eliminating micro-leakage problems

Inactive Publication Date: 2020-05-15
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

This analysis method requires manual operation, and each gold tube takes 3-4 hours. The work efficiency is extremely low, and the analysis accuracy is not high due to the difficulty in controlling the injection volume.

Method used

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  • Gas composition and carbon isotope automatic analysis device in thermal simulation gold tube of hydrocarbon source rock
  • Gas composition and carbon isotope automatic analysis device in thermal simulation gold tube of hydrocarbon source rock
  • Gas composition and carbon isotope automatic analysis device in thermal simulation gold tube of hydrocarbon source rock

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Embodiment Construction

[0021] Such as Figure 1-5 As shown, an automatic analysis device for gas composition and carbon isotope in a source rock thermal simulation gold tube of the present invention includes a gas release assembly 1, a standard sample injection assembly 2, a vacuum assembly 3, a sample volume controller 4, and a gas composition An analytical gas chromatograph 5 , an isotope analysis mass spectrometer 6 and a control device 112 .

[0022] There are multiple sets of the gas release assembly 1 . Specifically, in this embodiment, there are 10 sets of gas release assemblies 1 . Such as figure 2 As shown, each set of gas release assembly 1 includes a gas release chamber 11 , a gold tube 12 , a tungsten steel needle 13 and a driving device 14 . The gold tube 12 is arranged in the gas release chamber 11; a through hole is provided on the gas release chamber 11, and the tungsten steel needle 13 passes through the through hole on the gas release chamber 11 and the needle point is in conta...

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Abstract

The invention discloses an automatic analysis device for gas components and a carbon isotope in a hydrocarbon source rock thermal simulation gold tube, wherein the automatic analysis device includes gas release assemblies, a standard sample injection assembly, a vacuumization assembly, a sample introduction amount controller, a gas component analysis gas chromatographic instrument, and an isotopeanalysis mass spectrometer; a gold tube containing gas is pierced to release gas in a vacuum gas release chamber, firstly, the gas components are analyzed to obtain an analyzed result, then a proper amount of sample gas is injected into the isotope mass spectrometer and is subjected to isotopic analysis of hydrocarbon gases. A plurality of sets of the gas release assemblies are arranged, analysisis finished in one gold tube, gas is switched to a next gold tube and the analysis process is repeated, and automatic analysis of the gas components and the carbon isotope in a plurality of gold tubesis finally completed. Compared with a traditional manual analysis method, the device can increase the efficiency by three times, improve the accuracy of the analysis and eliminate the artificial analysis error.

Description

technical field [0001] The invention relates to the technical field of thermal simulation tests of hydrocarbon source rocks, in particular to an automatic analysis device for gas components and carbon isotopes in thermal simulation gold tubes of hydrocarbon source rocks. Background technique [0002] One of the research methods of oil and gas geochemistry is to encapsulate source rock samples in gold tubes, then conduct thermal simulation tests under high temperature and high pressure, and finally analyze the composition and carbon isotope of the hydrocarbon gases produced in the gold tubes, so as to obtain oil and gas Yield and carbon isotope data of hydrocarbon gases. The gold tube has a diameter of 4.5 mm and a length of 60 mm and can encapsulate 10-100 mg of source rock. The source rock in the gold tube is heated to produce natural gas. [0003] At present, the composition and isotope analysis of the gas in the gold tube is carried out manually at home and abroad, that...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N30/06G01N30/88
CPCG01N30/06G01N30/88
Inventor 刘金钟彭平安卢鸿王庆涛刘大永
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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