Study of subsea type gas production system for methane hydrate under the seabed by gas-liquid two-phase flow model

Takeshi Shinoda, Ryusei Kajiyama, Ryosuke Koike, Tetsuro Nozaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Japan imports more than 94% of its primary energy supply and the import figures reach up to 250 billon US dollars every year. Imported energy resources in the form of crude oil and natural gas are mainly from Middle East Asia and South Asia. The political instability in these region and crude oil scarcity in the future possess a risk of procurement for the energy demands. Improvement of rate of energy self-sufficiency and diversification of supply sources are then become an urgent issue in Japan. In recent years, rich reserves of methane hydrate were discovered in the Sea of Japan, and it is expected that reserves can cover energy consumed amount in Japan for 100 years. In this study, we examine a subsea type gas production system for methane hydrate under the seabed. The design of subsea type device for methane hydrate production was investigated in order to grasp the pressure distribution and void fraction distribution of the wellbore and numerical simulation was performed for gasliquid two-phase flow, bottom-hole pressure, the initial flow rate, pipe diameter.

Original languageEnglish
Title of host publicationOCEANS 2016 - Shanghai
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781467397247
DOIs
Publication statusPublished - Jun 3 2016
EventOCEANS 2016 - Shanghai - Shanghai, China
Duration: Apr 10 2016Apr 13 2016

Other

OtherOCEANS 2016 - Shanghai
CountryChina
CityShanghai
Period4/10/164/13/16

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Automotive Engineering

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    Shinoda, T., Kajiyama, R., Koike, R., & Nozaki, T. (2016). Study of subsea type gas production system for methane hydrate under the seabed by gas-liquid two-phase flow model. In OCEANS 2016 - Shanghai [7485686] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/OCEANSAP.2016.7485686