Numerical simulation of methane hydrate dissociation characteristics in microporous media using lattice Boltzmann method: Effect of fluid flow

Zhang, Yajin; Wang, Xiaoti; Dong, Bo; An, Xiang; Chen, Cong; Zhou, Xun; Li, Weizhong

doi:10.1016/j.ces.2022.118384

Cited by 5 publications

(3 citation statements)

References 63 publications

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“…29 Zhang et al used the lattice Boltzmann method to simulate the gas hydrate dissociation process and successfully designed a simulation model to study gas hydrate dissociation processes involving gas−water flows. 30 In research on the mechanism of methane hydrate phase transition, researchers never came to an agreement about the definition of induction time. 31 On the pilot scale, researchers can observe not only the massive hydrate crystallization but also the critical nucleus.…”

Section: Introductionmentioning

confidence: 99%

“…They also found that limited gas diffusion shows great importance in the morphology of ‘grain-bridging’ hydrate . Zhang et al used the lattice Boltzmann method to simulate the gas hydrate dissociation process and successfully designed a simulation model to study gas hydrate dissociation processes involving gas–water flows . In research on the mechanism of methane hydrate phase transition, researchers never came to an agreement about the definition of induction time .…”

Section: Introductionmentioning

confidence: 99%

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Pore-Scale Investigation into the Effects of Fluid Perturbation During Hydrate Formation

Rui,

Deng,

Feng

et al. 2024

Energy Fuels

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In order to increase the gas production efficiency during methane hydrate exploitation, the research focus should be nowadays on the methane hydrate formation and decomposition mechanisms. As methane hydrate reformation and the hydrate heterogeneity in the pores of sediments show great influence on gas production during hydrate decomposition, new insights need to be supplemented to reveal the mechanism of the hydrate phase transition. In this work, a new microfluidic chip 'simple straight pipe chip' was designed based on the microfluidic device. By comparing it with the former chip 'cylindrical structure chip,' a series of experiments were conducted to investigate the morphology of the hydrate phase transition. The 'water perturbation under a gas-filled situation' method and the 'gas perturbation under a water-filled situation' method were applied for hydrate formation. The results connect different methane hydrate growth patterns to different occurrence patterns in hydrate-bearing sediments. In the gas-filled situation, with the water migration rate rising, the hydrate stable state varies from a grain-coating hydrate to a load-bearing hydrate. In the water-filled situation, with the gas migration rate rising, the stable hydrate state becomes narrower. These results also gave explanations for hydrate reformation and heterogeneity in hydrate-bearing sediments. The depressurization in gas production will create water and gas flow to varying degrees, which will lead to hydrate reformation and the heterogeneity situation. Finally, these findings also provided valuable information and data for gas production and further research into gas hydrate.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Pore-Scale Investigation into the Effects of Fluid Perturbation During Hydrate Formation

Rui,

Deng,

Feng

et al. 2024

Energy Fuels

View full text Add to dashboard Cite

show abstract

“…Numerous studies have been conducted on seepage mechanics by scholars from diverse countries [16][17][18][19][20][21][22][23][24][25]. The lattice Boltzmann method (LBM) has gained considerable traction in resolving flow issues characterized by significant micro-scale effects and intricate channels [26][27][28][29][30][31][32][33][34]. Guo et al [35] introduced a lattice Boltzmann model for isothermal incompressible flow within porous media.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of fluid flow behavior in steel cord with lattice Boltzmann methodology: The impacts of microstructure and loading force

Zhao,

Jin,

Fan

et al. 2024

PLoS ONE

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Steel cord materials were found to have internal porous microstructures and complex fluid flow properties. However, current studies have rarely reported the transport behavior of steel cord materials from a microscopic viewpoint. The computed tomography (CT) scanning technology and lattice Boltzmann method (LBM) were used in this study to reconstruct and compare the real three-dimensional (3D) pore structures and fluid flow in the original and tensile (by loading 800 N force) steel cord samples. The pore-scale LBM results showed that fluid velocities increased as displacement differential pressure increased in both the original and tensile steel cord samples, but with two different critical values of 3.3273 Pa and 2.6122 Pa, respectively. The original steel cord sample had higher maximal and average seepage velocities at the 1/2 sections of 3D construction images than the tensile steel cord sample. These phenomena should be attributed to the fact that when the original steel cord sample was stretched, its porosity decreased, pore radius increased, flow channel connectivity improved, and thus flow velocity increased. Moreover, when the internal porosity of tensile steel cord sample was increased by 1 time, lead the maximum velocity to increase by 1.52 times, and the average velocity was increased by 1.66 times. Furthermore, when the density range was determined to be 0–38, the pore phase showed the best consistency with the segmentation area. Depending on the Zou-He Boundary and Regularized Boundary, the relative error of simulated average velocities was only 0.2602 percent.

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Study of gas-liquid two-phase flow characteristics in hydrate-bearing sediments

Zhang,

Li,

Chen

et al. 2024

Energy

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Numerical simulation of methane hydrate dissociation characteristics in microporous media using lattice Boltzmann method: Effect of fluid flow

Cited by 5 publications

References 63 publications

Pore-Scale Investigation into the Effects of Fluid Perturbation During Hydrate Formation

Pore-Scale Investigation into the Effects of Fluid Perturbation During Hydrate Formation

Numerical investigation of fluid flow behavior in steel cord with lattice Boltzmann methodology: The impacts of microstructure and loading force

Study of gas-liquid two-phase flow characteristics in hydrate-bearing sediments

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