Numerical simulation of laboratory experiments on methane hydrate dissociation

Rajesh J. Pawar, George A. Zyvoloski, Norio Tenma, Ysuhide Sakamoto, Takeshi Komai

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

8 Citations (Scopus)

Abstract

We present results of numerical simulation of dissociation behavior of methane hydrates in laboratory experiments conducted at the Institute for Geo-Resources and Environment in Tsukuba, Japan. The hydrate was formed in packed sand columns and the dissociation behavior was studied under different stimulation conditions including hot-water injection and/or pressure reduction. A number of variables including amount of gas produced, temperature along the column and pressure difference across the column were monitored. A numerical model for hydrate behavior was developed, based on the FEHM (Finite Element Heat and Mass) Computer Code, the Los Alamos National Laboratory (LANL)'s in-house porous flow simulator. Capability to simulate the general behavior of hydrates in porous media was added to the simulator, including the kinetic, thermodynamic and heat transfer processes. Multiple conceptual models were used to simulate the experimental data. The simulation results indicate that incorporation of both dissociation and hydrate formation is necessary to better match the experimental data.

Original languageEnglish
Title of host publicationProceedings of the International Offshore and Polar Engineering Conference
Pages379-385
Number of pages7
Publication statusPublished - 2005 Dec 1
Externally publishedYes
Event15th International Offrshore and Polar Engineering Conference, ISOPE-2005 - Seoul, Korea, Republic of
Duration: 2005 Jun 192005 Jun 24

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
Volume2005
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Other

Other15th International Offrshore and Polar Engineering Conference, ISOPE-2005
Country/TerritoryKorea, Republic of
CitySeoul
Period05/6/1905/6/24

Keywords

  • Dissociation
  • Gas hydrate
  • Hot water injection
  • Kinetics
  • Methane
  • Porous media simulation
  • Reformulation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

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