Semi-Autonomous Industrial Robotic Inspection: Remote Methane Detection in Oilfield

2018 ◽  
Author(s):  
Roberto Silva Filho ◽  
Ching-Ling Huang ◽  
Bo Yu ◽  
Raju Venkataramana ◽  
Ashraf El-Messidi ◽  
...  
Keyword(s):  
Methane Detection

Novel Fiber-Optic Sensing System for Detection of Methane

2013 ◽  
Vol 562-565 ◽  
pp. 1008-1015 ◽  
Author(s):  
Shu Tao Wang ◽  
Peng Wei Zhang ◽  
Quan Min Zhu
Keyword(s):  
Fiber Optic ◽  
Detection System ◽  
Step Motor ◽  
Harmonic Detection ◽  
Distributed Feedback Laser ◽  
Gas Cell ◽  
Response Characteristics ◽  
The Stability ◽  
Application Fields ◽  
Methane Detection

Based on DFBLD (Distributed Feedback Laser Diode) and harmonic detection technique, a novel fiber-optic methane detection system is constructed. The system can be applied to broad-range concentration detection of methane. Based on the approximation express of the law of Beer-Lambert, detection of methane with various concentration from 0% to 20% is completed using subtraction of background and ratio processing method, as the atmosphere surroundings are treated as background noise. The direct absorption spectra for various concentration is measured using GRIN gas cell, combined with DFBLD. The R5 line of the 2v3 band of methane is selected as the absorption peak. The system is tested online during gas mixing process and the linear relationship between system indication and concentration variation is validated. Also the stability and dynamic response characteristics are confirmed by the experiments. The sensitivity of the system can be adjusted according to the concentration level of various field environments by changing the prism distance using step motor. In the range of 0% to 20% the sensitivity of methane detection can arrive at 0.001%. So the system can be applied to various application fields and adopted as monitoring instruments for coalmine tunnel and natural pipeline.

Cryptophane-Cladded Interferometric Waveguide Sensor for Aqueous Methane Detection

2017 ◽  
Author(s):  
Jana Jágerská ◽  
Firehun T. Dullo ◽  
Susan M. Lindecrantz ◽  
Jacqueline M. Börgers ◽  
Jørn H. Hansen ◽  
...  
Keyword(s):  
Methane Detection ◽  
Waveguide Sensor

Magneto-plasmonic sensor with one dimensional photonic crystal for methane detection

Optik ◽  
2018 ◽  
Vol 155 ◽  
pp. 74-80 ◽  
Author(s):  
Jie Li ◽  
Tingting Tang ◽  
Yanfen Zhang ◽  
Li Luo ◽  
Ping Sun
Keyword(s):  
Photonic Crystal ◽  
Plasmonic Sensor ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Methane Detection

Application of distributed fiber optic sensing in mine for methane detection

1996 ◽  
Author(s):  
Hong-Tao Jiang ◽  
Yi-Wei Shi ◽  
Zhaohui Wang ◽  
Yao-Cai Wang
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Sensing ◽  
Methane Detection

scholarly journals First detection of ozone in the mid-infrared at Mars: implications for methane detection

2020 ◽  
Vol 639 ◽  
pp. A141 ◽  
Author(s):  
K. S. Olsen ◽  
F. Lefèvre ◽  
F. Montmessin ◽  
A. Trokhimovskiy ◽  
L. Baggio ◽  
...  
Keyword(s):  
Atmospheric Chemistry ◽  
Polar Vortex ◽  
Trace Gas ◽  
Spectral Signature ◽  
Infrared Range ◽  
Mid Infrared ◽  
Northern Latitudes ◽  
Ultraviolet Range ◽  
Vibration Rotation ◽  
Methane Detection

Aims. The ExoMars Trace Gas Orbiter was sent to Mars in March 2016 to search for trace gases diagnostic of active geological or biogenic processes. Methods. We report the first observation of the spectral features of Martian ozone (O3) in the mid-infrared range using the Atmospheric Chemistry Suite Mid-InfaRed (MIR) channel, a cross-dispersion spectrometer operating in solar occultation mode with the finest spectral resolution of any remote sensing mission to Mars. Results. Observations of ozone were made at high northern latitudes (>65°N) prior to the onset of the 2018 global dust storm (Ls = 163–193°). During this fast transition phase between summer and winter ozone distribution, the O3 volume mixing ratio observed is 100–200 ppbv near 20 km. These amounts are consistent with past observations made at the edge of the southern polar vortex in the ultraviolet range. The observed spectral signature of ozone at 3000–3060 cm−1 directly overlaps with the spectral range of the methane (CH4) ν3 vibration-rotation band, and it, along with a newly discovered CO2 band in the same region, may interfere with measurements of methane abundance.

A Constellation of Satellites Hunting Methane Leaks Is Launching Soon

2021 ◽  
Vol 73 (04) ◽  
pp. 32-33
Author(s):  
Stephen Rassenfoss
Keyword(s):  
Oil And Gas ◽  
Chief Executive ◽  
General Purpose ◽  
Emission Data ◽  
Well Control ◽  
Control Event ◽  
Oil And Gas Operations ◽  
Methane Measurement ◽  
Canadian Company ◽  
Methane Detection

A blowout in Ohio in 2018 was the first ever where the emissions could be measured from space, though it was at best a rough estimate based on data gathered on the 13th day after the XTO Energy well control event began. A year later, a blowout of a Devon well near Victoria, Texas, was measured starting the day after it occurred, with data collected on 3 days over the next 2 weeks. Using the measurement of carbon dioxide, it was estimated that the flare was 87% effective in burning about 4,800 metric tons of the leaking methane gas. Emission estimates varied wildly, and both the Ohio (Pandey et al. 2019) and Texas (Cusworth, Duren, Thorpe et al. 2020) efforts to use satellites led to technical papers to consider how they addressed this challenge. For those with blowouts next year, chances are a lot better methane-emission data would be available because of the launch of a constellation of specialized methane-measurement satellites by the two groups that played a key role in the earlier tests. In presentations at CERAWeek by IHS Markit, GHGSat said it has two methane-detection satellites in orbit and plans the launch of eight more, and the Environmental Defense Fund (EDF) said it is moving forward with the launch of its first one next year. Both are aiming to cover the lion’s share of oil and gas operations and measure the flow rate of the gas rather than concentrations in the atmosphere. They said they can do that far more accurately than was possible with the general-purpose climate observation satellites by focusing their equipment on the wavelength of methane. GHGSat said its satellites, which are about the size of a microwave oven, can measure the potent greenhouse gas from an elevation of 500 km and up. They are placed in polar orbit, which allows them to cover the globe every 2 weeks as the Earth rotates. Launching more satellites will allow more frequent looks. There are differences in the GHGSat and EDF designs, reflecting their contrasting missions. The Canadian company GHGSat, whose satellite initiative was initially supported by Schlumberger and the Oil and Gas Climate Initiative, is building tiny satellites with extremely high resolution to serve clients in the oil and mining businesses. During the presentation, Stéphane Germain, chief executive officer of GHGSat, displayed an image and said its satellites can tell if the methane is “coming from a particular facility and even tell what part of the facility it is coming from.” The company also sells the services of similarly equipped planes that can create more-detailed images using similar equipment at elevations of 3000 m and higher. EDF raised $100 million from donors, including Elon Musk, and has hired Raytheon to build a satellite equipped with a detector from Ball Aerospace. It can survey an area that is 260 km wide. That is far wider than the GHGSat satellites, which have the advantage of being able to zero in on smaller details when looking for leaks. The environmental group points out its device is more sensitive to methane emissions, detecting levels down to two parts per billion.

Dual-Bandpass Filter in Infrared Thermal Imaging System for Methane Detection

2018 ◽  
Vol 38 (12) ◽  
pp. 1231001
Author(s):  
付秀华 Fu Xiuhua ◽  
刘文奇 Liu Wenqi ◽  
尹士平 Yin Shiping ◽  
刘克武 Liu Kewu ◽  
刘冬梅 Liu Dongmei
Keyword(s):  
Thermal Imaging ◽  
Bandpass Filter ◽  
Imaging System ◽  
Infrared Thermal Imaging ◽  
Thermal Imaging System ◽  
Methane Detection

Fabrication and Performance of Micro-sensors for Methane Detection Based on In-Pd-Co-SnO 2 Composite Nanofibers

2012 ◽  
Vol 29 (2) ◽  
pp. 020701 ◽  
Author(s):  
Ji-Ping Qiao ◽  
Zi-Peng Zhu ◽  
Xiao-Yan Yan ◽  
Jian-Min Qin
Keyword(s):  
Composite Nanofibers ◽  
And Performance ◽  
Methane Detection
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