Raman spectrum gas detection system as well as detection method and application thereof

A gas detection system and Raman spectroscopy technology, applied in Raman scattering, optical exploration, material excitation analysis, etc., can solve the problem of low precision, achieve high spatial resolution, low failure rate, non-damage quantitative and qualitative analysis Effect

Inactive Publication Date: 2013-02-06
CHINA PETROCHEMICAL CORP +1
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  • Application Information

AI Technical Summary

Problems solved by technology

Thermal Conductivity Chromatography SK-3R03 General Detection H 2 and CO 2 ; Low precision; hydrogen sulfide detection requires a special detector
The problem with non-hydrocarbon detectors is that one gas basically corresponds to one detection instrument

Method used

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  • Raman spectrum gas detection system as well as detection method and application thereof
  • Raman spectrum gas detection system as well as detection method and application thereof
  • Raman spectrum gas detection system as well as detection method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] 1. Experimental comparison: In order to understand the performance of the Raman laser gas analyzer more intuitively, the present invention was tested and compared with Shanghai Shenkai 3Q04 chromatogram, see Table 1.

[0041] Table 1 Comparison between Raman gas analyzer and 3Q04 chromatographic performance indoor experiment

[0042]

[0043] 2. On-site comparison test:

[0044] Test method: Simultaneously, the present invention and 3Q04 chromatograph perform on-site mud logging operations, and oil and gas monitoring is carried out throughout the process. Basic data of the test well: Well Xinsha X, well type: horizontal well, test well section: 0-3168.00m, test time: 61 days, Raman gas analysis interpreted a total of 22 layers of oil and gas shows, oil and gas show well sections, interpretation layers Consistent with 3Q04 chromatogram. See image 3 , 4 , 5.

[0045] 3. Practical comparison

[0046] ①Raman analyzer has less auxiliary equipment, low failure rate ...

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Abstract

The invention belongs to the field of petroleum exploration and development and particularly relates to a system and a method for detecting by applying a Raman spectrum technology in the gas detection process of oil-gas logging. A Raman spectrum gas detection system comprises a sample pretreatment device, a Raman gas analyzer, a data signal processing module, a data communication module, a signal output display unit and a master control unit, wherein the sample pretreatment device is connected with the Raman gas analyzer and is used for inputting the pretreated gas in the Raman gas analyzer for analyzing components; the Raman gas analyzer is used for inputting the analyzed result to the data signal processing module; the data signal processing module is used for outputting the analysis result to the signal output display unit through the data communication module; and the master control unit is used for controlling the inputting of sample gas.

Description

technical field [0001] The invention belongs to the field of petroleum exploration and development, and in particular relates to a gas detection process in oil and gas logging, and a system and method for detection using Raman spectrum technology. Background technique [0002] Mud logging is the "eyes" of exploration and development. Gas detection technology is the key technology of mud logging. The purpose of mud logging gas detection is first to directly discover oil and gas layers, second to do a good job in monitoring and early warning of toxic and harmful gases, and third to discover non-hydrocarbon gas deposits. [0003] Hydrogen flame chromatography SK-3Q04 and infrared spectroscopy are often used in the prior art for hydrocarbon detection. The problem with hydrogen flame chromatography SK-3Q04 is that it only detects hydrocarbon gases; there are many auxiliary equipment, complex gas paths, and many factors affecting analysis, which are prone to failure; components c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01V8/02
Inventor 陶海施强王崇敬汤中荣夏杰唐诚唐庆权杨范海涛徐如刚陈琪陈舒
Owner CHINA PETROCHEMICAL CORP
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