Petroleum and natural gas leakage detection method based on double-optical frequency comb spectrum technology

A dual optical frequency comb, oil and gas technology, applied in the direction of color/spectral characteristic measurement, application of light to test fluid tightness, etc., can solve the problems of being easily interfered by other gases, long response time, low detection accuracy, etc., and achieve measurement speed Fast, high signal-to-noise ratio, widening the effect of the application field

Inactive Publication Date: 2020-09-29
EAST CHINA NORMAL UNIV
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although some leak detection methods already exist in actual production, such as detection equipment based on electrochemical and semiconductor tec...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Petroleum and natural gas leakage detection method based on double-optical frequency comb spectrum technology
  • Petroleum and natural gas leakage detection method based on double-optical frequency comb spectrum technology
  • Petroleum and natural gas leakage detection method based on double-optical frequency comb spectrum technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Example: such as figure 1 As shown, this embodiment specifically relates to a method for oil and gas leakage detection based on dual optical frequency comb spectroscopy technology. Module 4, gas detection module 5, beam combination module 6, signal detection module 7, data acquisition and spectrum analysis module 8. The dual optical frequency comb module 1 includes two optical frequency combs and an atomic clock 13 , and the two optical frequency combs are respectively a signal light source optical comb 11 and a local oscillator light source optical comb 12 . The signal light source optical comb 11 is arranged sequentially with the optical splitting module 2, the optical cable transmission module 4, and the gas detection module 5, and the local oscillator light source optical comb 12 is arranged sequentially with the beam combination module 6, the signal detection module 7, and the data acquisition and spectrum analysis module 8, and the optical splitting module 8 is ar...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a petroleum and natural gas leakage detection method based on a double-optical frequency comb spectrum technology. According to the method, two optical frequency combs with small repetition frequency difference are used for converting to radio frequency detection under multi-heterodyne interference, and then are combined with a Fourier transform spectrum technology so as torealize noncontact online detection of petroleum and natural; the method comprises the following steps: (1) completing locking of repetition frequencies and carrier envelope phase deviation frequencies of two optical frequency combs; (2) detecting natural gas leakage; (3) the two optical frequency combs carry out multi-heterodyne interference radio frequency detection; (4) carrying out Fourier transform through a computer to restore spectral information; and (5) judging whether the natural gas detection area leaks or not. The method has the advantages that the spectral resolution and the signal-to-noise ratio of the method are higher, various gas components can be discriminated at the same time, and the anti-interference capability is high.

Description

technical field [0001] The invention belongs to the technical field of gas detection, and in particular relates to a method for detecting oil and gas leakage based on dual optical frequency comb spectrum technology. Background technique [0002] As a green energy widely used by humans at present, oil and gas have always been worried about the leakage problem in the process of exploitation, processing and transportation. Due to the flammable and explosive characteristics of methane (CH4), the main component of natural gas, once a leak occurs, it will seriously endanger the safety of the staff. Therefore, it is very important to quickly and effectively detect whether there is a natural gas leak for the development and production of oil and natural gas. significance. Although some leak detection methods already exist in actual production, such as detection equipment based on electrochemical and semiconductor technologies, these methods generally have problems such as low detec...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01M3/38G01N21/31
CPCG01M3/38G01N21/31
Inventor 欧阳诚李文雪刘洋罗大平顾澄琳
Owner EAST CHINA NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap