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

Yi Jyun Huang; Cheng Yueh Wu; Bieng Zih Hsieh

doi:10.1016/j.egypro.2016.10.006

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

Yi Jyun Huang, Cheng Yueh Wu, Bieng Zih Hsieh

Department of Resources Engineering

Research output: Contribution to journal › Conference article › peer-review

9 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	310-317
Number of pages	8
Journal	Energy Procedia
Volume	97
DOIs	https://doi.org/10.1016/j.egypro.2016.10.006
Publication status	Published - 2016
Event	European Geosciences Union General Assembly 2016, EGU Division Energy, Resources and the Environment, ERE 2016 - Vienna, Austria Duration: 2016 Apr 17 → 2016 Apr 22

All Science Journal Classification (ASJC) codes

General Energy

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10.1016/j.egypro.2016.10.006

Cite this

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title = "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",

abstract = "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.",

author = "Huang, {Yi Jyun} and Wu, {Cheng Yueh} and Hsieh, {Bieng Zih}",

note = "Publisher Copyright: {\textcopyright} 2016 The Authors.; European Geosciences Union General Assembly 2016, EGU Division Energy, Resources and the Environment, ERE 2016 ; Conference date: 17-04-2016 Through 22-04-2016",

year = "2016",

doi = "10.1016/j.egypro.2016.10.006",

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journal = "Energy Procedia",

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T1 - Effect of Fluid Saturation on Gas Recovery from Class-3 Hydrate Accumulations Using Depressurization

T2 - European Geosciences Union General Assembly 2016, EGU Division Energy, Resources and the Environment, ERE 2016

AU - Huang, Yi Jyun

AU - Wu, Cheng Yueh

AU - Hsieh, Bieng Zih

PY - 2016

Y1 - 2016

N2 - 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.

AB - 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.

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SN - 1876-6102

VL - 97

SP - 310

EP - 317

JO - Energy Procedia

JF - Energy Procedia

Y2 - 17 April 2016 through 22 April 2016

ER -

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

Abstract

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