Dynamic in situ imaging of methane hydrate formation in coal media

Fuel ◽  
2021 ◽  
Vol 298 ◽  
pp. 120699
Author(s):  
Viktor V. Nikitin ◽  
Mikhail I. Fokin ◽  
Geser A. Dugarov ◽  
Arkady N. Drobchik ◽  
Vincent De Andrade ◽  
...  
Keyword(s):  
Methane Hydrate ◽  
Hydrate Formation ◽  
In Situ Imaging

scholarly journals Dynamic in-situ imaging of methane hydrate formation and self-preservation in porous media

2020 ◽  
Vol 115 ◽  
pp. 104234 ◽  
Author(s):  
Viktor V. Nikitin ◽  
Geser A. Dugarov ◽  
Anton A. Duchkov ◽  
Mikhail I. Fokin ◽  
Arkady N. Drobchik ◽  
...  
Keyword(s):  
Porous Media ◽  
Methane Hydrate ◽  
Hydrate Formation ◽  
In Situ Imaging

Methane-Hydrate-Formation Processes in Methane/Water Bubbly Flows

SPE Journal ◽  
2016 ◽  
Vol 22 (03) ◽  
pp. 746-755 ◽  
Author(s):  
T.. Shimizu ◽  
Y.. Yamamoto ◽  
N.. Tenma
Keyword(s):  
Methane Hydrate ◽  
Hydrate Formation ◽  
Production Method ◽  
Gas Production ◽  
Bubbly Flows ◽  
Turbulent Shear ◽  
Formation Processes ◽  
Flow Loop ◽  
Offshore Production

Summary Offshore natural-gas production from methane-hydrate (MH) reservoirs has received considerable attention. In this study, the offshore production method is briefly described, followed by the flow loop experiments performed to investigate the formation processes of MH in methane-in-water bubbly flows. Transient processes of phase transformation are characterized by phase paths, flow morphologies, pump heads, and in-situ particle-size measurements. It is realized that an MH slurry is generated by MH shells covering unconverted bubbles, whereas it can be transformed into a colloidal flow with fine crystalline particles under an intense turbulent shear. This study suggests that, in practice, the flow pattern under MH formation would be determined by the phase path and the flow velocity in the pipeline, which is one of the important factors considered in the evaluation of flow-assurance risks.

scholarly journals In-situ Raman and kinetic study on the methane hydrate formation and decomposition

2019 ◽  
Vol 158 ◽  
pp. 5615-5621 ◽  
Author(s):  
Seong Jun Cho ◽  
Truong Lam Son Hai ◽  
Ju Dong Lee
Keyword(s):  
Kinetic Study ◽  
Methane Hydrate ◽  
Hydrate Formation ◽  
In Situ Raman

Insights into the Kinetics of Methane Hydrate Formation in a Stirred Tank Reactor by In Situ Raman Spectroscopy

2015 ◽  
Vol 3 (9) ◽  
pp. 925-934 ◽  
Author(s):  
Jong Min Lee ◽  
Seong Jun Cho ◽  
Ju Dong Lee ◽  
Praveen Linga ◽  
Kyung Chan Kang ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Methane Hydrate ◽  
Hydrate Formation ◽  
Stirred Tank ◽  
In Situ Raman Spectroscopy ◽  
Stirred Tank Reactor ◽  
Tank Reactor ◽  
In Situ Raman ◽  
Kinetics Of

scholarly journals Infrared spectroscopy on the role of surfactants during methane hydrate formation

RSC Advances ◽  
2017 ◽  
Vol 7 (62) ◽  
pp. 39109-39117 ◽  
Author(s):  
Florian Rauh ◽  
Jens Pfeiffer ◽  
Boris Mizaikoff
Keyword(s):  
Infrared Spectroscopy ◽  
Gas Hydrate ◽  
Methane Hydrate ◽  
Molecular Level ◽  
Hydrate Formation ◽  
Gas Hydrate Formation

Studies on the role of surfactants at a molecular level during gas hydrate formation via in situ fiberoptic infrared spectroscopy.

Development of in situ Imaging Probe for Surgical Operation of Deep Brain Stimulation

2011 ◽  
Vol 131 (12) ◽  
pp. 427-428
Author(s):  
Toshihiko Noda ◽  
Pan Yi-Li ◽  
Ayato Tagawa ◽  
Takuma Kobayashi ◽  
Kiyotaka Sasagawa ◽  
...  
Keyword(s):  
Deep Brain Stimulation ◽  
Brain Stimulation ◽  
Surgical Operation ◽  
Imaging Probe ◽  
Deep Brain ◽  
In Situ Imaging
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