Pollution gas concentration and diffusion model in shale gas flowback fluid
文献类型：期刊论文
| 作者 | Cheng Xiao-Xiao1,3; Liu Jian-Guo3 ; Xu Liang3; Xu Han-Yang3; Jin Ling3; Shu Sheng-Quan1,3; Xue Ming2
|
| 刊名 | ACTA PHYSICA SINICA
 |
| 出版日期 | 2021-07-05 |
| 卷号 | 70 |
| ISSN号 | 1000-3290 |
| 关键词 | shale gas pollution gases non-point source diffusion model concentration distribution |
| DOI | 10.7498/aps.70.20210017 |
| 通讯作者 | Xu Liang(xuliang@aiofm.ac.cr) |
| 英文摘要 | Aiming at the uncertainty of the concentration of the pollution gases and the spread of distribution in the process of shale gas development, the open optical path Fourier Transform infrared spectroscopy (FTIR) measurement system designed and built by ourselves is used to invert the concentration of pollution gases in the backflow, and the size of pollution source is calculated by the flow rate of backflow liquid and the size of pollution source. By combining with the field environment and establishing the reference coordinates, the Gaussian diffusion model is derived mathematically, and the non-point source diffusion model of pollution source is constructed and simulated. The result shows that the source intensity, distance, wind speed and atmospheric stability all affect gas concentration diffusion. The concentration of main pollution gas and the strength of non-point source are obtained by continuously measuring the backflow liquid for 80 h. The result shows that C3H8, C5H12, C3H6, CO and SO2 are the main pollution gases of the backflow liquid, and their maximum concentrations are 4.689 mg/m(3), 25.494 mg/m(3), 30.324 mg/m(3), 0.656 mg/m(3) and 4.620 mg/m(3), respectively. The maximum strengths of non-point source are 1.9872 g/s, 10.9750 g/s, 12.8513 g/s, 0.2707 g/s and 1.9064 g/s, respectively. By combining the wind speed and daytime environmental conditions, the atmospheric stability is selected and the source strength is substituted into the non-point source diffusion model, the diffusion concentration of polluted gas is obtained, and the real-time monitoring of the concentration distribution of different polluted gases at different locations is realized. The traditional method is used to collect air samples in the field and determine them in the laboratory. It takes a long time and different sampling methods are affected by the preservation time of samples, etc., so there is a great difference between the measured values in the laboratory and the measured values in the field. The country has issued online monitoring standards for volatile organic compounds (VOCs), but most of them are for the determination of non-methane total hydrocarbon, which cannot realize in situ component analysis, and cannot implement the monitoring of VOC concentration distribution within the region. Compared with traditional measurement methods, the method of FTIR and non-point source diffusion model can not only realize the non-contact, long-distance, online measurement of pollution sources, but also set the dynamic factory boundary of the pollution area and determine the safe distribution area. |
| WOS关键词 | ADSORPTION ; EMISSIONS ; REGION ; AIR |
| 资助项目 | Special Funds of the National Natural Science Foundation of China[41941011] ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences[QYZDY-SSW-DQC016] ; National Key R&D Program of China[2016YFC0201002] ; National Key R&D Program of China[2016YFC0803001-08] ; Key R&D Plan of Anhui Province, China[1804d08020300] ; Major National Oil and Gas Special Project of the Ministry of Science and Technology, China[2016ZX05040-004] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | CHINESE PHYSICAL SOC |
| WOS记录号 | WOS:000672791600002 |
| 资助机构 | Special Funds of the National Natural Science Foundation of China ; Key Research Program of Frontier Sciences of Chinese Academy of Sciences ; National Key R&D Program of China ; Key R&D Plan of Anhui Province, China ; Major National Oil and Gas Special Project of the Ministry of Science and Technology, China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123625]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xu Liang |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.CNPC, Safety & Environm Protect Technol Res Inst, Beijing 102206, Peoples R China 3.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng Xiao-Xiao,Liu Jian-Guo,Xu Liang,et al. Pollution gas concentration and diffusion model in shale gas flowback fluid[J]. ACTA PHYSICA SINICA,2021,70. |
| APA | Cheng Xiao-Xiao.,Liu Jian-Guo.,Xu Liang.,Xu Han-Yang.,Jin Ling.,...&Xue Ming.(2021).Pollution gas concentration and diffusion model in shale gas flowback fluid.ACTA PHYSICA SINICA,70. |
| MLA | Cheng Xiao-Xiao,et al."Pollution gas concentration and diffusion model in shale gas flowback fluid".ACTA PHYSICA SINICA 70(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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