Applicability study of difference frequency oil-gas detection technology

Author(s):  
Xiudi Jiang
2019 ◽  
Vol 48 (5) ◽  
pp. 517007
Author(s):  
贾军伟 Jia Junwei ◽  
李 伟 Li Wei ◽  
柴 昊 Chai Hao ◽  
张书锋 Zhang Shufeng ◽  
张明志 Zhang Mingzhi ◽  
...  

Proceedings ◽  
2020 ◽  
Vol 67 (1) ◽  
pp. 7
Author(s):  
Ana Maria Carmen Ilie ◽  
Carmela Vaccaro

Cities are major contributors to greenhouse gas emissions (GHG) due to the high density of urbanization, numerous industrial centers, and intensive agricultural activities. This study focused on soil methane and radon gas measurements in the subsurface, as well as in the atmosphere. Measurements were conducted using new gas detection instrumentation and as low-cost devices for methane gas concentrations. Maximum soil radon gas concentration was observed to be approximately 1770 ± 582 Bq/m3 at a depth of 1 m below the ground surface. The soil comprised of 64.31% sand, 20.75% silt, and 14.94% clay, and 0.526 ppm of uranium. The maximum concentration of methane was about 0.06%, at a depth of 1 m into the soil, characterized by 83% sand, 8.96% silt, and 7.89% clay. Moreover, this study focused on a better understanding of the advantages and disadvantages of new soil gas detection technology. The results and findings of environmental data obtained from the soil gas survey were shared with the community, whose involvement was critical in the data acquisition process.


2011 ◽  
Vol 233-235 ◽  
pp. 2665-2668 ◽  
Author(s):  
Hai Rong Wang ◽  
Di Cen ◽  
Guang Fei Men ◽  
Jian Yun Wang

Quick, accurate and reliable detection of mash gas plays an important role in the coal industry. This paper presents a novel method to get the infrared absorption peak wavelength by light splitting using plane blazed grating, instead of using filter conventionally. The principle and setup of producing 3.433μm and 4.65μm wavelength lights for detecting CH4 and CO concentration are described in details. The work provides a simple, but efficient option to the infrared absorption gas detection technology.


2002 ◽  
Vol 75 (2-3) ◽  
pp. 281-288 ◽  
Author(s):  
D. Richter ◽  
A. Fried ◽  
B.P. Wert ◽  
J.G. Walega ◽  
F.K. Tittel

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