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Additionally, research at Nankai Trough is expected to promote the technical development necessary for the commercial exploration and production of methane gas from hydrates, and to facilitate its use and contribution to a long-term national energy strategy. [citation needed] Location map of the Nankai Trough along the southeastern coast of Japan
Methane clathrate (CH 4 ·5.75H 2 O) or (4CH 4 ·23H 2 O), also called methane hydrate, hydromethane, methane ice, fire ice, natural gas hydrate, or gas hydrate, is a solid clathrate compound (more specifically, a clathrate hydrate) in which a large amount of methane is trapped within a crystal structure of water, forming a solid similar to ice.
The conditions for hydrate stability generally restrict natural deposits to polar regions and deep oceanic regions. In polar regions, due to low temperatures, the upper limit of the hydrate stability zone occurs at a depth of approximately 150 meters . 1 [ citation needed ] The maximal depth of the hydrate stability zone is limited by the ...
Methane clathrate block embedded in the sediment of hydrate ridge, off Oregon, USA. Clathrate hydrates, or gas hydrates, clathrates, or hydrates, are crystalline water-based solids physically resembling ice, in which small non-polar molecules (typically gases) or polar molecules with large hydrophobic moieties are trapped inside "cages" of hydrogen bonded, frozen water molecules.
Mount Elbert Methane Hydrate Site (or Mount Elbert Gas Hydrate Test Well, Mount Elbert test well) is a natural gas test site within the Alaska North Slope.The well was first drilled in 2007 as part of a Cooperative Research Agreement with BP Exploration (Alaska), Inc. (BPXA) and the U.S. Department of Energy (DOE) in collaboration with the U.S. Geological Survey (USGS). [1]
At water depths of 500 m to 1,000 m, and at the low temperatures typical of the seafloor (close to 4 °C), water and methane combine to create a substance known as methane hydrate. Within a few metres to hundreds of metres of the seafloor, the temperature is low enough for methane hydrate to be stable and hydrates accumulate within the sediment.
The Mallik Gas Hydrate Production Research Well, part of the "Methane Hydrate Research and Development (R&D) Program", [4] is located on the northwest side of Richards Islands and is a part of the Mackenzie Delta, entering the Beaufort
The free gas zone is a zone of freed methane in a hydrate formation, beneath the hydrate stability zone. It can influence the rate of methane output at a ridge or ridge region. A large free gas zone makes more methane available to be released into the open ocean, and, thus, can likely be more influential on climate change than a smaller one. [11]