Effect of Fluid Saturation on Gas Recovery from Class-3 Hydrate Accumulations Using Depressurization: A Case Study of the Yuan-an Ridge Site in Southwestern Offshore Taiwan
| Autor: | Bieng Zih Hsieh, Cheng Yueh Wu, Yi Jyun Huang |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Depressurization
Petroleum engineering 020209 energy Clathrate hydrate Fluid saturation 02 engineering and technology Numerical simulation Permeability (earth sciences) 020401 chemical engineering Recovery factors Cabin pressurization Energy(all) 0202 electrical engineering electronic engineering information engineering Gas hydrate Submarine pipeline 0204 chemical engineering Petrology Hydrate Saturation (chemistry) Geology |
| Zdroj: | Energy Procedia. 97:310-317 |
| ISSN: | 1876-6102 |
| DOI: | 10.1016/j.egypro.2016.10.006 |
| Popis: | This study focused on the effect of initial hydrate saturation on gas recovery from a depressurized Class-3 hydrate accumulation via a simulation study of the Yuan-An Ridge hydrate deposit located in southwestern offshore Taiwan. Our simulation results showed that the recovery factors for a 20-year operation time in the case of a 70% pressure decline were 0.37, 0.47, 0.49, 0.51, and 0.13 for initial hydrate saturations of 30%, 40%, 50%, 60%, and 70%, respectively. The depressurization is not suitable for hydrate deposits with a high hydrate saturation over 70% except when the formation permeability is higher than 2 Darcy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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