Analytical modeling of methane hydrate dissociation under thermal stimulation
In this study, a one-dimensional analytical model to describe heat and mass transfer during methane hydrate dissociation under thermal stimulation in porous media has been developed. The model is based on a similarity solution that considers a moving dissociation boundary which separates the dissoci...
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crcenteros:10.31224/osf.io/y3cmz 2023-05-15T17:11:43+02:00 Analytical modeling of methane hydrate dissociation under thermal stimulation Roostaie, Mohammad Leonenko, Yuri 2021 http://dx.doi.org/10.31224/osf.io/y3cmz unknown Center for Open Science https://creativecommons.org/licenses/by/4.0/legalcode CC-BY posted-content 2021 crcenteros https://doi.org/10.31224/osf.io/y3cmz 2022-02-04T12:14:37Z In this study, a one-dimensional analytical model to describe heat and mass transfer during methane hydrate dissociation under thermal stimulation in porous media has been developed. The model is based on a similarity solution that considers a moving dissociation boundary which separates the dissociated zone containing produced gas and water from the un-dissociated zone containing only methane hydrate. The results of temperature distribution, pressure distribution, energy efficiency, and parametric study considering various initial and boundary conditions as well as various reservoir properties are presented and compared with previous studies. Sensitivity analysis of gas production on reservoir properties is also presented in this paper. The dissociation boundary moves faster by increasing the heat source temperature while decreasing the heat source pressure simultaneously, but the associated energy efficiency decreases. Increasing the well thickness has a negative effect on the energy efficiency of the process. Among the proposed thermal properties of the system, only the thermal diffusivities and conductivites of the reservoir as well as the porosity of the sediment affect the dissociation. The main contribution of this work is investigating analytically the hydrate dissociation using thermal stimulation by taking into account the effect of wellbore thickness and structure. Other/Unknown Material Methane hydrate COS Center for Open Science (via Crossref) |
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In this study, a one-dimensional analytical model to describe heat and mass transfer during methane hydrate dissociation under thermal stimulation in porous media has been developed. The model is based on a similarity solution that considers a moving dissociation boundary which separates the dissociated zone containing produced gas and water from the un-dissociated zone containing only methane hydrate. The results of temperature distribution, pressure distribution, energy efficiency, and parametric study considering various initial and boundary conditions as well as various reservoir properties are presented and compared with previous studies. Sensitivity analysis of gas production on reservoir properties is also presented in this paper. The dissociation boundary moves faster by increasing the heat source temperature while decreasing the heat source pressure simultaneously, but the associated energy efficiency decreases. Increasing the well thickness has a negative effect on the energy efficiency of the process. Among the proposed thermal properties of the system, only the thermal diffusivities and conductivites of the reservoir as well as the porosity of the sediment affect the dissociation. The main contribution of this work is investigating analytically the hydrate dissociation using thermal stimulation by taking into account the effect of wellbore thickness and structure. |
format |
Other/Unknown Material |
author |
Roostaie, Mohammad Leonenko, Yuri |
spellingShingle |
Roostaie, Mohammad Leonenko, Yuri Analytical modeling of methane hydrate dissociation under thermal stimulation |
author_facet |
Roostaie, Mohammad Leonenko, Yuri |
author_sort |
Roostaie, Mohammad |
title |
Analytical modeling of methane hydrate dissociation under thermal stimulation |
title_short |
Analytical modeling of methane hydrate dissociation under thermal stimulation |
title_full |
Analytical modeling of methane hydrate dissociation under thermal stimulation |
title_fullStr |
Analytical modeling of methane hydrate dissociation under thermal stimulation |
title_full_unstemmed |
Analytical modeling of methane hydrate dissociation under thermal stimulation |
title_sort |
analytical modeling of methane hydrate dissociation under thermal stimulation |
publisher |
Center for Open Science |
publishDate |
2021 |
url |
http://dx.doi.org/10.31224/osf.io/y3cmz |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_rights |
https://creativecommons.org/licenses/by/4.0/legalcode |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.31224/osf.io/y3cmz |
_version_ |
1766068485455085568 |