Numerical Investigation on Hot Water Injection Process Along Fractures of Methane Hydrate Reservoirs

Yong Chang Feng, Lin Chen, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama

Research output: Contribution to journalArticlepeer-review

Abstract

Natural gas hydrate (NGH) is considered one of the most promising alternative energy resources because of its high-energy density, abundance in nature and cleanness. The key challenge for commercial exploitation and utilization of this energy resource is how to increase the permeability of NGH reservoirs which benefits gas production efficiency. This study proposes a method for increasing NGH reservoir permeability by the combination of applying hydraulic fracturing method to induce artificial fractures in NGH reservoirs and then injecting hot water into the fractures, and conducts a numerical investigation on the hot water injection process. The results indicate that hot water can flow into the deep region of NGH reservoir, along which a high-temperature and high-permeability zone forms, and the higher the injection rate, the larger this zone.

Original languageEnglish
Pages (from-to)663-667
Number of pages5
JournalKung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
Volume42
Issue number3
Publication statusPublished - 2021 Mar

Keywords

  • Fractures
  • Hydraulic fracturing
  • Natural gas hydrate
  • Permeability
  • Thermal stimulation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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