Radioactive elements in natural gas: a case study on distribution of gaseous 222radon and its origin mechanism |
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| Authors: | Haohan Luo Dazhen Tang Qituan Yan Wei He Hao Xu |
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| Institution: | 1. Coal Reservoir Laboratory of National CBM Engineering Center, School of Energy Resources, China University of Geosciences, Beijing, China
2. Langfang Branch, Petro China Exploration and Development Research Institute, Lang Fang, Hebei Province, China
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| Abstract: | As natural gas becomes increasingly important in our daily life, studies have been carried out on trace elements such as mercury and arsenic within it. Other than those, the existence of radioactive gaseous radon from the combustion of natural gas indoors can cause severe diseases and damages to body organs, putting a hazardous impact on human health. At the same time, the radon can also corrode gas production and transportation equipment. A review of the literature on radon concentrations in natural gas produced from gas reservoirs in China and other countries have been studied. Radon is a decay product from 238U, which is closely related to the accumulation and migration of organic matter during diagenesis. Gas recovered from reservoirs with higher than average natural 238U contains higher than average levels of 222Rn. Massive fault systems and fracture zones appear to play a significant role in radon concentrations in natural gas. |
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