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We Have to Using Fossil Fuels

Methane Production from Methane Hydrates

Precision Combustion, Inc. (PCI) is developing its downhole catalytic combustor for the purposes of generating downhole heat for efficient production of methane from its hydrate, with potential for CO2 sequestration. We are developing this as an enabling technology for the long term goal of increasing U.S. and world energy production and available reserves at low cost while potentially reducing global warming.


"Today, the U.S. Geological Survey estimates that methane hydrate may, in fact, contain more organic carbon than all the world's coal, oil, and non-hydrate natural gas combined. The magnitude of this previously unknown global storehouse of methane is truly staggering and has raised serious inquiry into the possibility of using methane hydrate as a source of energy." [U.S. DOE Methane Hydrate Program].


"Extraction of methane from hydrates could provide an enormous energy and petroleum feedstock resource. Additionally, conventional gas resources appear to be trapped beneath methane hydrate layers in ocean sediments." [U.S. Geological Service]

Gas hydrates occur in Arctic and marine subsurface regions. Gas hydrate is a crystalline solid consisting of gas molecules, usually methane, each surrounded by a cage of water molecules. The gas is held in this state by a combination of low temperature and high pressure. If the gas could be effectively, safely and controllably tapped, gas hydrates offer the potential for making major contributions to meeting DOE primary objectives regarding energy needs and energy independence while substantially expanding available world energy reserves. Heating offers a high production option for doing this as the heat released from oxidation of a single methane molecule is enough to liberate over ten methane molecules from their hydrate state. (Emphasis added)


PCI is developing this application under a U.S. Department of Energy Small Business Innovation Research Phase I/II contract. Among the results to date:

  • Downhole heat generation can produce methane from dissociation of the hydrate

  • Only 12-15% of produced methane is consumed in the process, offering substantial energy savings from avoided heat losses

  • This approach avoids heating of the permafrost

  • Potential CO2 sequestration for added energy savingThis application offers the potential for an economic technology for substantially increasing world available energy reserves.

The technology also may provide a global warming benefit through CO2 sequestration.

   CO2 hydrate is thermodynamically more stable than methane hydrate, it will exist at a higher temperature than methane hydrate, and the CO2 hydrate heat of formation (exothermic) is slightly greater than the heat of dissociation (endothermic) for methane hydrate. This means the possibility exists for economic sequestration of CO2 into the methane hydrate bed, advantageously stabilizing the bed, and further reducing required heat from combustion.

Contact PCI to learn more about participation in this exciting effort.