Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Phase Equilibrium of Methane Hydrate in Aqueous Solutions of Clay Stabilizers | |
Yao, Yuanxin1,2,3,4,5,6; Liu, Lu1,2,3,4,5,6; Zhou, Xuebing1,2,3,4,5,6; Li, Dongliang1,2,3,4,5,6 ; Liang, Deqing1,2,3,4,5,6
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| 2021-01-14 | |
| Source Publication | JOURNAL OF CHEMICAL AND ENGINEERING DATA
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| ISSN | 0021-9568 |
| Volume | 66Issue:1Pages:598-608 |
| Corresponding Author | Li, Dongliang(ldl@ms.giec.ac.cn) |
| Abstract | The effects of high concentrations of clay stabilizers in drilling and fracturing fluids on wellbore flow safety and natural gas hydrate exploitation have gained recent interest. This study investigated the effects of different concentrations of inorganic polymer, alkali, and silicate clay stabilizers on the phase equilibrium of methane hydrate at experimental mass concentrations of 2, 5, 10, and 15 wt %. The inorganic polymer clay stabilizers employed are zirconium oxychloride and polyaluminum chloride, the alkali clay stabilizer is potassium hydroxide, and the silicate clay stabilizers are potassium silicate, potassium methyl silicate, sodium silicate, and sodium methyl silicate. The clay stabilizers caused the phase equilibrium curve of methane hydrate to shift to higher pressures and lower temperatures and exhibited different degrees of thermodynamic inhibition. The average temperature drop ranged from 0.09 to 9.28 K, and the inhibition effect increased with concentration. The inhibition effect of the inorganic polymer clay stabilizers on methane hydrate was the weakest, while potassium hydroxide and sodium methyl silicate exhibited the strongest inhibition ability. The hydrate samples were also characterized in the presence of the clay stabilizers by powder X-ray diffraction, Raman spectroscopy, and cryo-scanning electron microscopy. The clay stabilizers did not alter the crystal structures of the hydrates, but they did affect the occupation of methane molecules in the 5(12)6(2) hydrate cage. The hydrates on the sample surfaces were distributed regularly under the influence of the electrolytes, which also confirms the inhibitory effect of clay stabilizers on hydrate formation. |
| DOI | 10.1021/acs.jced.0c00798 |
| WOS Keyword | GAS-HYDRATE ; CARBON-DIOXIDE ; DISSOCIATION ; MGCL2 ; KCL ; PERMEABILITY ; ETHANE ; CACL2 ; NACL |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51661165011] ; National Natural Science Foundation of China[51706230] ; Guangdong Natural Science Foundation[2018B0303110007] ; Guangdong Province MED Project[GDOE[2019]A39] ; Guangdong Province MED Project[GDOE[2019]A41] ; Guangdong Special Support Program[2019BT02L278] ; Science and Technology Planning Project of Guangzhou City, China[201707010252] |
| WOS Research Area | Thermodynamics ; Chemistry ; Engineering |
| Funding Organization | National Natural Science Foundation of China ; Guangdong Natural Science Foundation ; Guangdong Province MED Project ; Guangdong Special Support Program ; Science and Technology Planning Project of Guangzhou City, China |
| WOS Subject | Thermodynamics ; Chemistry, Multidisciplinary ; Engineering, Chemical |
| WOS ID | WOS:000611409200057 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/32759 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Li, Dongliang |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China 5.State Key Lab Nat Gas Hydrate, Beijing 100028, Peoples R China 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Yao, Yuanxin,Liu, Lu,Zhou, Xuebing,et al. Phase Equilibrium of Methane Hydrate in Aqueous Solutions of Clay Stabilizers[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2021,66(1):598-608. |
| APA | Yao, Yuanxin,Liu, Lu,Zhou, Xuebing,Li, Dongliang,&Liang, Deqing.(2021).Phase Equilibrium of Methane Hydrate in Aqueous Solutions of Clay Stabilizers.JOURNAL OF CHEMICAL AND ENGINEERING DATA,66(1),598-608. |
| MLA | Yao, Yuanxin,et al."Phase Equilibrium of Methane Hydrate in Aqueous Solutions of Clay Stabilizers".JOURNAL OF CHEMICAL AND ENGINEERING DATA 66.1(2021):598-608. |
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