Methane reservoir

Methane reservoirs on Earth are mainly found in[1]

* Oil and gas reservoirs as natural gas
* Coalbeds
* the seabed and the Arctic and other permafrost regions as methane clathrate
* the atmosphere
* decaying organic material[2]

with the exact distribution so far determined by the methane cycle/carbon cycle.

Methane as the main ingredient of natural gas and as an extractable fossil fuel-energy resource has limited if significant reserves. Russia, Iran, and Qatar are topping the list with together 105.6 trillion cubic metres (3.73×10 ~~^~~ 15 cu ft), nearly half the world's proven reserves. Methane from gas fields is an important factor in the world energy production and consumption. Methane clathrate is a potential future energy source, if it doesn't escape to the atmosphere before extraction because of global warming. In the atmosphere, it is not only unusable, but also a potent greenhouse gas, further accelerating the current climate change.[3] But even conventional reservoirs are leaking methane (together with other gases like carbon dioxide) especially downstream the processing line.[4]

## References

1. ↑ "Global methane reservoirs, fluxes, and turnover times". https://www.ess.uci.edu/~reeburgh/fig9.html.
2. ↑ Keane, Rose (2016-09-08). "Bubbling Up: Methane from Reservoirs Presents Climate Change Challenge". https://blog.epa.gov/2016/09/08/bubbling-up-methane-from-reservoirs-presents-climate-change-challenge/.
3. ↑ "Climate change and methane hydrates « World Ocean Review". https://worldoceanreview.com/en/wor-1/ocean-chemistry/climate-change-and-methane-hydrates/.
4. ↑ "Reservoir Emissions". https://www.internationalrivers.org/campaigns/reservoir-emissions.

## See also

* Natural gas storage
* Natural-gas condensate

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