An investigation of hydrate formation in unsaturated sediments using X‐ray computed tomography

L Lei, Z Liu, Y Seol, R Boswell… - Journal of Geophysical …, 2019 - Wiley Online Library
Physical properties of hydrate‐bearing sediments are often correlated with hydrate
saturation with little or no information on hydrate distribution uniformity in the specimens …

Laboratory strategies for hydrate formation in fine‐grained sediments

L Lei, JC Santamarina - Journal of Geophysical Research: Solid …, 2018 - Wiley Online Library
Fine‐grained sediments limit hydrate nucleation, shift the phase boundary, and hinder gas
supply. Laboratory experiments in this study explore different strategies to overcome these …

Observation of gas hydrate distribution in sediment pore space

GW HU, CF LI, YG YE, CL LIU, J ZHANG… - Chinese Journal of …, 2014 - en.dzkx.org
Based on the high-resolution industrial x-ray computerized tomography (X-CT), a dedicated
apparatus was developed to observe in-situ pore scale distribution of gas hydrate directly …

A model for the diffusive growth of hydrate saturation anomalies in layered sediments

AW Rempel - Journal of Geophysical Research: Solid Earth, 2011 - Wiley Online Library
Sediment particles affect the phase behavior of gas hydrates, both by increasing the surface
energy where pore geometry forces hydrate crystals to attain high curvatures and through …

Pore-scale evidence of ion exclusion during methane hydrate growth and evolution of hydrate pore-habit in sandy sediments

X Chen, DN Espinoza, JS Luo, N Tisato… - Marine and Petroleum …, 2020 - Elsevier
Hydrate-bearing sediments constitute complex hydrological systems, within which the pore
habit of hydrate significantly affects all physical properties. However, there is scarce pore …

Permeability change induced by dissociation of gas hydrate in sediments with different particle size distribution and initial brine saturation

J Sun, Z Zhang, D Wang, C Liu, H Lu, K Song - Marine and Petroleum …, 2021 - Elsevier
Permeability is critical to understand gas production behavior from hydrate reservoirs. The
effects of particle size distribution and initial brine saturation on effective permeability of …

Methane hydrate distribution from prolonged and repeated formation in natural and compacted sand samples: X‐ray CT observations

EVL Rees, TJ Kneafsey, Y Seol - Journal of Geological …, 2011 - Wiley Online Library
To study physical properties of methane gas hydrate‐bearing sediments, it is necessary to
synthesize laboratory samples due to the limited availability of cores from natural deposits. X …

Hydrate morphology: Physical properties of sands with patchy hydrate saturation

S Dai, JC Santamarina, WF Waite… - Journal of geophysical …, 2012 - Wiley Online Library
The physical properties of gas hydrate‐bearing sediments depend on the volume fraction
and spatial distribution of the hydrate phase. The host sediment grain size and the state of …

Heterogeneity of hydrate-bearing sediments: Definition and effects on fluid flow properties

X Kou, XS Li, Y Wang, JW Liu, ZY Chen - Energy, 2021 - Elsevier
Heterogenous distribution of gas hydrate in pores is the common characteristic of hydrate
formation at various experimental scales. In this work, in order to fill the gap of defining the …

Pore-scale effect on the hydrate variation and flow behaviors in microstructures using X-ray CT imaging

Z Zhao, XP Zhou - Journal of Hydrology, 2020 - Elsevier
Gas-hydrates are natural clean energy resources with significant potentials as the
alternative energy resources. Nevertheless, the formation, migration and dissolution of …