Ingo Pecher

What are gas hydrates?

Gas hydrate is an ice-like form of water with gas in its molecular cavities (Sloan, 1990).

Molecular structure of gas hydrate (Modified from Schlumberger SEED http://www.seed.slb.com/en/scictr/watch/gashydrates/index.htm, last accessed 16 Oct 06)

Gas hydrates need moderate pressures and low temperatures to be stable.

Methane hydrate phase boundary: Methane hydrate is stable in permafrost areas and the deep ocean.

Refer e.g., to http://www.seed.slb.com/en/scictr/watch/gashydrates/index.htm for further information.

References:

Sloan, E. D., 1990, Clathrate hydrates of natural gases: Marcel Bekker.

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