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Seeding hydrate formation in water-saturated sand with dissolved-phase methane obtained from hydrate dissolution: A progress report

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Abstract

An isobaric flow loop added to the Gas Hydrate And Sediment Test Laboratory Instrument (GHASTLI) is being investigated as a means of rapidly forming methane hydrate in watersaturated sand from methane dissolved in water. Water circulates through a relatively warm source chamber, dissolving granular methane hydrate that was pre-made from seed ice, then enters a colder hydrate growth chamber where hydrate can precipitate in a water-saturated sand pack. Hydrate dissolution in the source chamber imparts a known methane concentration to the circulating water, and hydrate particles from the source chamber entrained in the circulating water can become nucleation sites to hasten the onset of hydrate formation in the growth chamber. Initial results suggest hydrate grows rapidly near the growth chamber inlet. Techniques for establishing homogeneous hydrate formation throughout the sand pack are being developed.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title Seeding hydrate formation in water-saturated sand with dissolved-phase methane obtained from hydrate dissolution: A progress report
Year Published 2008
Language English
Publisher University Of British Columbia Library
Contributing office(s) Woods Hole Coastal and Marine Science Center
Description 9 p.
Larger Work Type Conference Paper
Larger Work Subtype Conference Paper
Larger Work Title Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008)
First page 1
Last page 9
Conference Title 6th International Conference on Gas Hydrates (ICGH 2008)
Conference Location Vancouver, CA
Conference Date July 6-10, 2008