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AuthorJarrar, Zaher
AuthorAl-Raoush, Riyadh
AuthorAlshibli, Khalid
AuthorJung, Jongwon
Available date2023-06-04T07:16:33Z
Publication Date2020
Publication NameE3S Web of Conferences
ResourceScopus
URIhttp://dx.doi.org/10.1051/e3sconf/202020511004
URIhttp://hdl.handle.net/10576/43860
AbstractThe availability of natural gas hydrates and the continuing increase in energy demand, motivated researchers to consider gas hydrates as a future source of energy. Fundamental understanding of hydrate dissociation kinetics is essential to improve techniques of gas production from natural hydrates reservoirs. During hydrate dissociation, bonds between water (host molecules) and gas (guest molecules) break and free gas is released. This paper investigates the evolution of hydrate surface area, pore habit, and tortuosity using in-situ imaging of Xenon (Xe) hydrate formation and dissociation in porous media with dynamic three-dimensional synchrotron microcomputed tomography (SMT). Xe hydrate was formed inside a high- pressure, low-temperature cell and then dissociated by thermal stimulation. During formation and dissociation, full 3D SMT scans were acquired continuously and reconstructed into 3D volume images. Each scan took only 45 seconds to complete, and a total of 60 scans were acquired. Hydrate volume and surface area evolution were directly measured from the SMT scans. At low hydrate saturation, the predominant pore habit was surface coating, while the predominant pore habit at high hydrate saturation was pore filling. A second-degree polynomial can be used to predict variation of tortuosity with hydrate saturation with an R2 value of 0.997. The Authors, published by EDP Sciences, 2020.
SponsorThis publication was made possible by partial funding from NPRP grant # NPRP8-594-2-244 from the Qatar national research fund (a member of Qatar Foundation) and the Institute for a Secure and Sustainable Environment (ISSE), University of Tennessee-Knoxville, USA. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of funding agencies. The authors would like to thank Mr. Wadi Imseeh for his help during scanning and Mr. Jamal Hannun for his help in interfacial area analysis. This paper used resources of the Advanced Photon Source (APS), a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory (ANL) under Contract No. DE-AC02-06CH11357. The PSMT images presented in this paper were collected using the x-ray Operations and Research Beamline Station 13-BMD at Argonne Photon Source (APS), ANL. We thank Dr. Mark Rivers of APS for help in performing the PSMT scans. We also acknowledge the support of GeoSoilEnviroCARS (Sector 13), which is supported by the National Science Foundation, Earth Sciences (EAR-1128799), and the DOE, Geosciences (DEFG02-94ER14466).
Languageen
PublisherEDP Sciences
SubjectComputerized tomography
Dissociation
Gas industry
Gases
Hydration
Molecules
Porous materials
Surface mount technology
Temperature
Hydrate dissociation
Hydrate formation
Hydrate saturation
Hydrate surfaces
Low temperature cells
Microcomputed tomography
Second degree polynomials
Thermal stimulation
Gas hydrates
TitleDynamic 3D imaging of gas hydrate kinetics using synchrotron computed tomography
TypeConference Paper
Volume Number205
dc.accessType Open Access


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