典型文献
Nuclear magnetic resonance study of the formation and dissociation process of nature gas hydrate in sandstone
文献摘要：
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 (T2) and 2D imaging measurement. The result shows that the intensity of T2 spectra and magnetic resonance imaging (MRI) signals gradually decreases in the hydrate formation process, and at the same time, the T2 spectra move toward the left domain as the growth of hydrate in the pores of the sample accelerates the decay rate. The hydrate grows and dissociates preferentially in the purer sandstone samples with larger pore size and higher porosity. Significantly, for the sample with lower porosity and higher argillaceous content, the intensity of the T2 spectra also shows a trend of a great decrease in the hydrate formation process, which means that high-saturation gas hydrate can also be formed in the sample with higher argillaceous content. The changes in MRI of the sample in the process show that the formation and dissociation of methane hydrate can reshape the distribution of water in the pores.
文献关键词：
中图分类号：
作者姓名：
Dong-hui Xing;Xu-wen Qin;Hai-jun Qiu;Hong-feng Lu;Yi-ren Fan;Xin-min Ge;Cheng Lu;Jin-wen Du
作者机构：
National Engineering Research Center for Gas Hydrate Exploration and Development,Guangzhou 511458,China;Guangzhou Marine Geological Survey,China Geological Survey,Ministry of Natural Resources,Guangzhou 511458,China;Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou),Guangzhou 511458,China;China Geological Survey,Ministry of Natural Resources,Beijing 100083,China;School of Geosciences,China University of Petroleum(East China),Qingdao 266580,China;Center of Oil&Natural Gas Resource Exploration,China Geological Survey,Ministry of Natural Resources,Beijing 100083,China;School of Energy Resources,China University of Geosciences,Beijing 100083,China
文献出处：
引用格式：
[1]Dong-hui Xing;Xu-wen Qin;Hai-jun Qiu;Hong-feng Lu;Yi-ren Fan;Xin-min Ge;Cheng Lu;Jin-wen Du-.Nuclear magnetic resonance study of the formation and dissociation process of nature gas hydrate in sandstone)[J].中国地质（英文）,2022(04):630-636
A类：
purer
B类：
Nuclear,magnetic,resonance,study,formation,dissociation,process,nature,gas,hydrate,sandstone,In,this,work,authors,monitored,methane,four,different,rock,core,samples,through,nuclear,NMR,relaxation,2D,imaging,measurement,result,shows,that,intensity,spectra,signals,gradually,decreases,same,move,toward,left,domain,growth,pores,accelerates,decay,grows,dissociates,preferentially,larger,size,higher,porosity,Significantly,lower,argillaceous,content,also,trend,great,which,means,saturation,be,formed,changes,reshape,distribution,water
AB值：
0.448354
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
