抄録
We conducted an experimental study on the dissociation of methane hydrate (MH) and gas production behavior by depressurization in sediments. To reproduce the actual flow condition of gas and water, disc-shaped samples of MH in sediments were used. Horizontal radial flow in porous media during MH dissociation was studied under a variety of vertical loads in order to reproduce field conditions in real MH sediments. From experimental observations, it was found that the MH dissociation consisted of 2 stages due to the latent heat of sediments and thermal conduction. Based on experimental results, we carried out numerical simulations of laboratory-scale experiments for depressurization. Thermal conductivity that dominated dissociation behavior was optimized. Further, we formulated realistic relative permeability curves that allowed us to reproduce the gas-water production behavior under the existence of MH.
本文言語 | English |
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ページ(範囲) | 124-134 |
ページ数 | 11 |
ジャーナル | International Journal of Offshore and Polar Engineering |
巻 | 19 |
号 | 2 |
出版ステータス | Published - 2009 6 1 |
外部発表 | はい |
ASJC Scopus subject areas
- Civil and Structural Engineering
- Ocean Engineering
- Mechanical Engineering