期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Physical Simulation of Water Dissolved Gas (WDG)During Migration
1
作者 LIUZhao-lu LI-Jian FANGJia-hu 《Journal of China University of Mining and Technology》 EI 2005年第2期124-128,共5页
By using the equipment designed and developed by ourselves, experiment of investigating the influence of dissolution on some geo-chemical parameters (such as δ13C,δD,and iC4/nC4 in water-dissolved gas (WDG) during m... By using the equipment designed and developed by ourselves, experiment of investigating the influence of dissolution on some geo-chemical parameters (such as δ13C,δD,and iC4/nC4 in water-dissolved gas (WDG) during migration) was performed. The result shows that, with the increase of distance, 1) the relative abundance of non-hydrocarbon (CO2) and hydrocarbon (CH4) increase while the relative abundance of hydrocarbon (C2+) decreases (the relative abundance of hydrocarbon (C5+) can be basically negligible); 2) the relative abundance of benzene and methylbenzene increase in the initial time and then decrease. The carbon and hydrogen isotopes of methane vary slightly, which can be regarded as indicators of gas dissolved in water formation. 展开更多
关键词 gas dissolved in water Migration and formation Physical simulation
下载PDF
Experimental study on total dissolved gas supersaturation in water 被引量:1
2
作者 Lu QU Ran LI +2 位作者 Jia LI Ke-feng LI Lin WANG 《Water Science and Engineering》 EI CAS 2011年第4期396-404,共9页
More and more high dams have been constructed and operated in China. The total dissolved gas (TDG) supersaturation caused by dam discharge leads to gas bubble disease or even death of fish, Through a series of exper... More and more high dams have been constructed and operated in China. The total dissolved gas (TDG) supersaturation caused by dam discharge leads to gas bubble disease or even death of fish, Through a series of experiments, the conditions and requirements of supersaturated TDG generation were examined in this study. The results show that pressure (water depth), aeration, and bubble dissolution time are required for supersaturated TDG generation, and the air-water contact area and turbulence intensity are the main factors that affect the generation rate of supersaturated TDG. The TDG supersaturation levels can be reduced by discharging water to shallow shoals downstream of the dam or using negative pressure pipelines. Furthermore, the TDG supersaturation levels in stilling basins have no direct relationship with those in reservoirs. These results are of great importance for further research on the prediction of supersaturated TDG generation caused by dam discharge and aquatic protection. 展开更多
关键词 total dissolved gas supersaturation dissolved gas in water experimental study dam discharge
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部