Depressurization and electrical heating of hydrate sediment for gas production

Hideki Minagawa, Takuma Ito, Sho Kimura, Hiroaki Kaneko, Shohei Noda, Hideo Narita

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

7 Citations (Scopus)

Abstract

In-situ dissociation of natural gas hydrate is necessary for commercial recovery of natural gas from natural gas hydrate sediment. Thermal stimulation is an effective dissociation method, along with depressurization. In this study, we examined the efficiency of electrical heating of the hydrate core for gas production. To ensure safety and to avoid explosions, we investigated electrical heating of xenon gas hydrate sediment rather than methane hydrate sediment. Depressurization and additional electrode heating of hydrate sediment saturated with electrolyte solution was confirmed to enable higher gas production from sediment with less electric power.

Original languageEnglish
Title of host publicationProceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015
PublisherInternational Society of Offshore and Polar Engineers
Pages82-88
Number of pages7
ISBN (Electronic)9781880653890
Publication statusPublished - 1 Jan 2015
Event25th International Ocean and Polar Engineering Conference, ISOPE 2015 - Kona, Big Island, United States
Duration: 21 Jun 201526 Jun 2015

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2015-January
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference25th International Ocean and Polar Engineering Conference, ISOPE 2015
CountryUnited States
CityKona, Big Island
Period21/06/1526/06/15

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Keywords

  • Electrical heating
  • Hydrate
  • Permeability
  • Sediment
  • Thermal stimulation
  • Xe

Cite this

Minagawa, H., Ito, T., Kimura, S., Kaneko, H., Noda, S., & Narita, H. (2015). Depressurization and electrical heating of hydrate sediment for gas production. In Proceedings of the 25th International Ocean and Polar Engineering Conference, ISOPE 2015 (pp. 82-88). (Proceedings of the International Offshore and Polar Engineering Conference; Vol. 2015-January). International Society of Offshore and Polar Engineers.