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Nuclear magnetic resonance study of the formation and dissociation process of nature gas hydrate in sandstone
《China Geology》2022年第4期630-636,共7页Dong-hui Xing Xu-wen Qin Hai-jun Qiu Hong-feng Lu Yi-ren Fan Xin-min Ge Cheng Lu Jin-wen Du 
supported by the Guangdong Province Marine Economic Development(Six Major Marine Industries)Special Fund Project([2021]56);the Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(GML2019ZD0105);the Guangzhou Science and Technology Project(202201011463);project of the China Geological Survey(DD20211350).
In this work,the authors monitored the formation and dissociation process of methane hydrate in four different rock core samples through nuclear magnetic resonance(NMR)relaxation time(T_(2))and 2D imaging measurement....
关键词：Nature gas hydrates(NGHs) Methane hydrate Nuclear magnetic resonance(NMR) Magnetic resonance imaging(MRI) Formation and dissociation Saturation Berea sandstone Marine hydrates production test Oil and gas exploration engineering 
Experimental and modeling study of the kinetics of methane hydrate formation and dissociation被引量：1
《Chinese Journal of Chemical Engineering》2021年第1期365-374,共10页Vafa Feyzi Vahid Mohebbi 
In this work,several experiments were conducted at isobaric and isothermal condition in a CSTR reactor to study the kinetics of methane hydrate formation and dissociation.Experiments were performed at five temperature...
关键词：Methane hydrate KINETICS FORMATION DISSOCIATION Mass transfer 
Methane hydrate formation and dissociation behaviors in montmorillonite被引量：4
《Chinese Journal of Chemical Engineering》2019年第5期1212-1218,共7页Kefeng Yan Xiaosen Li Zhaoyang Chen Yu Zhang Chungang Xu Zhiming Xia 
Supported by the Key Program of National Natural Science Foundation of China(51736009);the Natural Science Foundation of Guangdong Province of China(2017A030313301);the Special project for marine economy development of Guangdong Province(GDME-2018D002);the National Key R&D Program of China(2016YFC0304002,2017YFC0307306);the Science and Technology Apparatus Development Program of the Chinese Academy of Sciences(YZ201619);the National Natural Science Foundation of China(51476147,51879254);the Frontier Sciences Key Research Program of the Chinese Academy of Sciences(QYZDJ-SSW-JSC033)
The methane hydrate formation and the methane hydrate dissociation behaviors in montmorillonite are experimentally studied. Through the analyses of the microstructure characteristic, the study obtains the porous chara...
关键词：METHANE HYDRATE POROUS media Formation/dissociation behavior Molecular dynamics simulation 
Formation and dissociation of dust molecules in dusty plasma
《Chinese Physics B》2016年第9期411-414,共4页闫佳 冯帆 刘富成 董丽芳 贺亚峰 
Project supported by the National Natural Science Foundation of China(Grant Nos.11205044 and 11405042);the Natural Science Foundation of Hebei Province,China(Grant Nos.A2011201006 and A2012201015);the Research Foundation of Education Bureau of Hebei Province,China(Grant No.Y2012009);the Program for Young Principal Investigators of Hebei Province,China;the Midwest Universities Comprehensive Strength Promotion Project,China
Dust molecules are observed in a dusty plasma experiment.By using measurements with high spatial resolution,the formation and dissociation of the dust molecules are studied.The ion cloud in the wake of an upper dust g...
关键词：dust plasma dust molecule 
Formation and dissociation of protonated cytosine–cytosine base pairs in i-motifs by ab initio quantum chemical calculations
《Chinese Physics B》2014年第2期189-192,共4页张小虎 黎明 王延颋 欧阳钟灿 
Project supported by the National Basic Research Program of China (973 Program,Grant No.2013CB932804);the National Natural Science Foundation of China (Grant Nos.91227115 and 11121403);the Hundred Talent Program of the Chinese Academy of Sciences (CAS)
Formation and dissociation mechanisms of C-C＋ base pairs in acidic and alkaline environments are investigated, employing ab initio quantum chemical calculations. Our calculations suggest that, in an acidic environmen...
关键词：ab initio quantum chemical calculation I-MOTIF protonated cytosine-cytosine base pair 
In-situ observation for formation and dissociation of carbon dioxide hydrate in porous media by magnetic resonance imaging被引量：5
《Science China Earth Sciences》2013年第4期611-617,共7页CHENG ChuanXiao ZHAO JiaFei SONG YongChen ZHU ZiHao LIU WeiGuo ZHANG Yi YANG MingJun YU XiChong 
supported by the State Key Development Program for Basic Research of China (Grant No. 2009CB219507);National Natural Science Foundation of China (Grant Nos. 51006017 & 50736001);National Science and Technology Major Project (Grant No. 2011ZX05026-004)
The study of formation and dissociation of CO 2 hydrate in porous media was characterized by magnetic resonance imaging (MRI) system in in situ conditions. This work simulated porous media by using glass beads of unif...
关键词：magnetic resonance imaging carbon dioxide hydrate porous media SATURATION induction time growth and dissocia- tion rate 
Methane hydrate formation and dissociation in synthetic seawater被引量：13
《Journal of Natural Gas Chemistry》2012年第6期625-632,共8页Vikash Kumar Saw Iqbal Ahmad Ajay Mandal G.Udayabhanu Sukumar Laik 
supported by the University Grant Commission,New Delhi,India,under Special Assistance Program (SAP) to the Department of Petroleum Engineering,Indian School of Mines,Dhanbad,India.
The formation and dissociation of methane gas hydrate at an interface between synthetic seawater （SSW） and methane gas have been experimentally investigated in the present work. The amount of gas consumed during hyd...
关键词：methane hydrate formation and dissociation total dissolved salt induction time SUBCOOLING 
Experimental studies of the formation and dissociation of methane hydrate in loess被引量：2
《Journal of Natural Gas Chemistry》2010年第3期217-223,共7页Guanli Jiang Qingbai Wu Jing Zhan 
supported by the CAS Knowledge Innovation Key Project (Grant No. KZCX2-YW- 330);the National Science Fund Fostering Talents in Basic Research to Glaciology and Geocryology (Grant No. J0630966);the Special Project Fund of State Key Laboratory of Engineering of Frozen Soil(Grant No. SKLFSE-ZQ-07)
In order to study the nature of gas hydrate in porous media,the formation and dissociation processes of methane hydrate in loess were investigated.Five cooling rates were applied to form methane hydrate.The nucleation...
关键词：methane hydrate LOESS FORMATION DISSOCIATION NUCLEATION CONVERSION gas volume percentage 
Water transfer characteristics in the vertical direction during methane hydrate formation and dissociation processes inside non-saturated media被引量：2
《Journal of Natural Gas Chemistry》2010年第2期139-145,共7页Peng Zhang Qingbai Wu Guanli Jiang Jing Zhan Yingmei Wang 
supported by the CAS Knowledge Innovation Key Project (Grant No.KZCX2-YW-330);the National Science Fund Fostering Talents in Basic Research to Glaciology and Geocryology (Grant No.J0630966)
In order to study water transfer characteristics inside non-saturated media during methane hydrate formation and dissociation processes,water changes on the top,middle and bottom locations of experimental media during...
关键词：water transfer methane hydrate formation and dissociation processes non-saturated 
Water transfer characteristics during methane hydrate formation and dissociation processes inside saturated sand被引量：3
《Journal of Natural Gas Chemistry》2010年第1期71-76,共6页Peng Zhang, Qingbai Wu, Yibin Pu, Guanli Jiang, Jing Zhan, Yingmei Wang State Key Laboratory, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, Gansu, China 
financially supported by the CAS Knowledge Innovation Key Project (Grant No. KZCX2-YW- 330);the National Science Fund FosteringTalents in Basic Research to Glaciology and Geocryology (Grant No. J0630966)
Gas hydrates formation and dissociation processes inside porous media are always accompanied by water transfer behavior, which is similar to the water behavior of ice freezing and thawing processes. These processes ha...
关键词：methane hydrate formation and dissociation processes： water transfer inside porous media saturated 
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