Abstract
Natural gas hydrates are known to occur in vast quantities at the ocean floor or in permafrost regions. In-situ hydrate contains great volumes of methane gas, which indicates a potential future energy resource. In this study, we have developed a three-dimensional, multi-phase (gas, water, and hydrate) flow finite-difference model by using implicit pressure explicit saturation technique in order to investigate simultaneous flow through ice-liked hydrate reservoir. The developed model is based on the depressurizing method as producing mechanism. The model evaluates local gas generation dissociated from the hydrate with the aid of kinetic dissociation theory proposed by Kim-Bishnoi. The computation of kinetic dissociation uses the empirical dissociation rate as a function of specific surface area between phases and pressure difference. With the developed model, a one-dimensional system has been simulated for analyzing the production performance of a hydrate reservoir and for investigating the effect of hydrate saturation on absolute permeability and relative permeability characteristics. Also, for the three-dimensional field-scaled reservoir system, a number of numerical exercises have been conducted to understand the effect of mass transfer and to characterize the flowing mechanism under the conditions of increased permeability resulting from the dissociation hydrate.
| Original language | English |
|---|---|
| Pages (from-to) | 344-350 |
| Number of pages | 7 |
| Journal | Korean Journal of Chemical Engineering |
| Volume | 17 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2000 Jan 1 |
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Keywords
- Gas Hydrate Reservoir FDM Model
- Kinetic Dissociation
- Multi-phase Flow
- Natural Gas Hydrate
- Production Performance
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Development and Application of Gas Hydrate Reservoir Simulator Based on Depressurizing Mechanism. / Sung, Won Mo; Huh, Dae Gee; Ryu, Byong Jae; Lee, Ho Seob.
In: Korean Journal of Chemical Engineering, Vol. 17, No. 3, 01.01.2000, p. 344-350.Research output: Contribution to journal › Article
TY - JOUR
T1 - Development and Application of Gas Hydrate Reservoir Simulator Based on Depressurizing Mechanism
AU - Sung, Won Mo
AU - Huh, Dae Gee
AU - Ryu, Byong Jae
AU - Lee, Ho Seob
PY - 2000/1/1
Y1 - 2000/1/1
N2 - Natural gas hydrates are known to occur in vast quantities at the ocean floor or in permafrost regions. In-situ hydrate contains great volumes of methane gas, which indicates a potential future energy resource. In this study, we have developed a three-dimensional, multi-phase (gas, water, and hydrate) flow finite-difference model by using implicit pressure explicit saturation technique in order to investigate simultaneous flow through ice-liked hydrate reservoir. The developed model is based on the depressurizing method as producing mechanism. The model evaluates local gas generation dissociated from the hydrate with the aid of kinetic dissociation theory proposed by Kim-Bishnoi. The computation of kinetic dissociation uses the empirical dissociation rate as a function of specific surface area between phases and pressure difference. With the developed model, a one-dimensional system has been simulated for analyzing the production performance of a hydrate reservoir and for investigating the effect of hydrate saturation on absolute permeability and relative permeability characteristics. Also, for the three-dimensional field-scaled reservoir system, a number of numerical exercises have been conducted to understand the effect of mass transfer and to characterize the flowing mechanism under the conditions of increased permeability resulting from the dissociation hydrate.
AB - Natural gas hydrates are known to occur in vast quantities at the ocean floor or in permafrost regions. In-situ hydrate contains great volumes of methane gas, which indicates a potential future energy resource. In this study, we have developed a three-dimensional, multi-phase (gas, water, and hydrate) flow finite-difference model by using implicit pressure explicit saturation technique in order to investigate simultaneous flow through ice-liked hydrate reservoir. The developed model is based on the depressurizing method as producing mechanism. The model evaluates local gas generation dissociated from the hydrate with the aid of kinetic dissociation theory proposed by Kim-Bishnoi. The computation of kinetic dissociation uses the empirical dissociation rate as a function of specific surface area between phases and pressure difference. With the developed model, a one-dimensional system has been simulated for analyzing the production performance of a hydrate reservoir and for investigating the effect of hydrate saturation on absolute permeability and relative permeability characteristics. Also, for the three-dimensional field-scaled reservoir system, a number of numerical exercises have been conducted to understand the effect of mass transfer and to characterize the flowing mechanism under the conditions of increased permeability resulting from the dissociation hydrate.
KW - Gas Hydrate Reservoir FDM Model
KW - Kinetic Dissociation
KW - Multi-phase Flow
KW - Natural Gas Hydrate
KW - Production Performance
UR - http://www.scopus.com/inward/record.url?scp=0034373747&partnerID=8YFLogxK
U2 - 10.1007/BF02699051
DO - 10.1007/BF02699051
M3 - Article
AN - SCOPUS:0034373747
VL - 17
SP - 344
EP - 350
JO - Korean Journal of Chemical Engineering
JF - Korean Journal of Chemical Engineering
SN - 0256-1115
IS - 3
ER -