Pore-scale investigation on the morphology evolution and micro-mechanism of methane hydrate formed from free gas and dissolved gas
文献类型：期刊论文
| 作者 | Li, Xiaoyan3; Wang, Yi1,2; Li, Xiaosen1,2; Zhou, Shidong3; Lv, Xiaofang3; Liu, Yang3 |
| 刊名 | CHEMICAL ENGINEERING SCIENCE
 |
| 出版日期 | 2024-07-05 |
| 卷号 | 293页码:10 |
| 关键词 | Methane hydrate Morphology evolution Occurrence patterns Free gas Dissolved gas |
| ISSN号 | 0009-2509 |
| DOI | 10.1016/j.ces.2024.120055 |
| 通讯作者 | Li, Xiaoyan(lixy@cczu.edu.cn) ; Zhou, Shidong(zsd@cczu.edu.cn) |
| 英文摘要 | The distribution characteristics of gas hydrates in the pores of sediments are critical to predict the macroscopic properties of hydrate reservoirs and the efficient production of gas hydrates. In this study, the experiments of methane hydrate formation were conducted in a glass micromodel, and the morphology evolution of hydrate formed from the free gas and dissolved gas in the pores were observed through a video microscope. Observation results showed that the hydrate formed from free gas grew preferentially along the gas-water interface and subsequently toward the center of the gas phase. For the hydrate formed from dissolved gas, it was preferentially occurred on the surface of the hydrate crust formed from free gas and gradually grew toward the water phase. The hydrate formation rate was determined by the concentration of methane molecules in surroundings water. The hydrate formed from free gas was porous structure and composed of many tiny hydrate crystals, and the hydrate formed from dissolved gas was smooth and transparent polyhedral hydrate crystal. For the hydrate formed by free gas, the occurrence pattern of hydrate in the pores might change from the grain-cementing to the contact-cementing or the patchy. The occurrence pattern of the hydrate formed from dissolved gas could be the pore-filling or the load-bearing. This study could be helpful for explaining the phenomenon of macroexperiments, the model construction for the macro-properties of hydrate-bearing sediments, and the exploring of gas hydrates reservoirs. |
| WOS关键词 | POROUS-MEDIA ; PERMEABILITY ; DECOMPOSITION ; DISSOCIATION ; SEDIMENTS ; ENERGY ; FLOW |
| 资助项目 | National Natural Science Foundation of China, China[52274061] ; National Natural Science Foundation of China, China[51974037] ; National Natural Science Foundation of China, China[52206231] ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, China[E239kf0301] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001220739800001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China, China ; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/41625]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Li, Xiaoyan; Zhou, Shidong |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 3.Changzhou Univ, Jiangsu Key Lab Oil Gas & New Energy Storage & Tra, Changzhou 213016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xiaoyan,Wang, Yi,Li, Xiaosen,et al. Pore-scale investigation on the morphology evolution and micro-mechanism of methane hydrate formed from free gas and dissolved gas[J]. CHEMICAL ENGINEERING SCIENCE,2024,293:10. |
| APA | Li, Xiaoyan,Wang, Yi,Li, Xiaosen,Zhou, Shidong,Lv, Xiaofang,&Liu, Yang.(2024).Pore-scale investigation on the morphology evolution and micro-mechanism of methane hydrate formed from free gas and dissolved gas.CHEMICAL ENGINEERING SCIENCE,293,10. |
| MLA | Li, Xiaoyan,et al."Pore-scale investigation on the morphology evolution and micro-mechanism of methane hydrate formed from free gas and dissolved gas".CHEMICAL ENGINEERING SCIENCE 293(2024):10. |
入库方式： OAI收割
来源：广州能源研究所
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