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

Research output: Contribution to journalConference articlepeer-review

4 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 languageEnglish
Pages (from-to)310-317
Number of pages8
JournalEnergy Procedia
Volume97
DOIs
Publication statusPublished - 2016
EventEuropean Geosciences Union General Assembly 2016, EGU Division Energy, Resources and the Environment, ERE 2016 - Vienna, Austria
Duration: 2016 Apr 172016 Apr 22

All Science Journal Classification (ASJC) codes

  • Energy(all)

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