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您的检索式：作者名="ZHU Ningjun"
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| 1 | Visualization of CO_2 and oil immiscible and miscible flow processes in porous media using NMR micro-imaging显示文摘CO_2 flooding is considered not only one of the most effective enhanced oil recovery(EOR) methods,but also an important alternative for geological CO_2 storage.In this paper,the visualization of CO_2 flooding was studied using a 400 MHz NMR micro-imaging system.For gaseous CO_2 immiscible displacement,it was found that CO_2 channeling or fingering occurred due to the difference of fluid viscosity and density.Thus,the sweep efficiency was small and the final residual oil saturation was 53.1%.For supercritical CO_2 miscible displacement,the results showed that piston-like displacement occurred,viscous fingering and the gravity override caused by the low viscosity and density of the gas was effectively restrained,and the velocity of CO_2 front was uniform.The sweep efficiency was so high that the final residual oil saturation was 33.9%,which indicated CO_2 miscible displacement could enhance oil recovery more than CO_2 immiscible displacement.In addition,the average velocity of CO_2 front was evaluated through analyzing the oil saturation prof ile.A special core analysis method has been applied to in-situ oil saturation data to directly evaluate the local Darcy phase velocities and capillary dispersion rate. | Zhao Yuechao SongYongchen Liu Yu Jiang Lanlan Zhu Ningjun | 2011 | Petroleum Science2011，8，2： | 9 |
| 2 | Measurement of Immiscible CO2Flooding Processes and Permeability Reduction due to Asphaltene Precipitation by X-ray CT Imaging显示文摘 | Wang Tonglei Song Yongchen zhao Yuechao Liu Yu and Zhu Ningjun | 2013 | Energy Procedia2013，，： | 1 |
| 3 | Pantograph-catenary are test apparatus for high-speed railway显示文摘With the continuous increase of train speed,undulations of catenary and vibrations of the pantograph head result in generating pantograph- catenary arc frequently,intensifying the abrasion between pantograph strip and catenary wire,which has seriously influenced the current collection and safety of electric multi units(EMU). It is necessary to study the pantographcatenary arc in immediately. Some researchers develop a few pantograph- catenary arc testing equipment,which couldn’t really reflect the operating condition of pantograph-catenary system. In this paper,the pantograph-catenary arc test apparatus was developed,which simulated the flexible and straight contact of pantograph strip and catenary wire,based on the coupling relationship between pantograph and catenary. The equipment was used to research the electrical parameters of the pantograph-catenary arc and the dynamic contact resistance. | WU Jie WU Guangning GAO Guoqiang ZHU Guangya HAO Jing ZHU Ningjun ZHOU Yue | 2014 | Instrumentation2014，1，2： | 1 |
| 4 | Measurement of Immiscible CO 2 Flooding Processes and Permeability Reduction due to Asphaltene Precipitation by X-ray CT Imaging显示文摘 | Tonglei Wang Yongchen Song Yuechao zhao Yu Liu Ningjun Zhu | 2013 | Energy Procedia2013，，： | 1 |
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