Methane Emissions in China's Oil and Gas Production: Impacts and Control Measures
- Yibin Weng (State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology) | Ming Xue (State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology) | Xiangyu Cui (State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology) | Xingchun Li (State Key Laboratory of Petroleum Pollution Control, CNPC Research Institute of Safety and Environmental Technology)
- Document ID
- International Petroleum Technology Conference
- International Petroleum Technology Conference, 26-28 March, Beijing, China
- Publication Date
- Document Type
- Conference Paper
- 2019. International Petroleum Technology Conference
- 4.1.8 Heavy Oil Upgrading, 4.1 Processing Systems and Design, 6.5.7 Climate Change, 4 Facilities Design, Construction and Operation, 4.6 Natural Gas
- Oil and Gas Production, Methane, Greenhouse Gas, Emission and Reduction
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- 51 since 2007
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The global warming potential of methane is 72 times that of carbon dioxide over a 20-year period, and the atmospheric residence time is about 1/12 of that of carbon dioxide, which must become a priority for greenhouse gas (GHG) control. Based on literature research and statistical analysis of publicly available data on methane emissions, the regression analysis prediction method was used to analyze the impact mechanism of methane emissions in the oil and gas production on the growth of GHGs emissions at the industry and national level. Also, the contribution of methane emissions to GHG emissions in the oil and gas industry was clarified. Furthermore, the variation trend of methane emissions in the oil and gas industry along with energy structure reformation was analyzed. Finally, the measures for methane emission control in the oil and gas industry were proposed. The results showed that the contribution to national GHGs emissions from energy industry has gradually increased from 73.3% in 1990 to 80.1% in 2014. In the meantime, the proportion of methane emissions from energy industry in national methane emissions has increased as well, rising from 53.0% in 1990 to 83.6% in 2008. The energy industry methane emissions showed a strong positive correlation with national methane emissions, and the annual fitting degree between the theoretical model and the actual data has increased as well. With the national energy structure reformation, the proportion of natural gas consumption in the energy sector has gradually increased while oil consumption has reduced. A comprehensive systematic reduction pathway for methane emission in the oil and gas production should be considered instead of end-to-end emission reduction. For conventional oil and gas production, improving management practices and operational procedures following the upgrade of technologies or equipment should be used to reduce methane emission. For unconventional oil and gas reduction, reduction technologies such as green completion and gas well liquid-unloading technologies are required, which would continue to promote technological innovation and address strictly control on methane emissions.
|File Size||834 KB||Number of Pages||10|
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