Method for production, substitution, or mining of gas hydrate

摘要

A gas hydrate is produced by injecting guest molecules into voids in a layer of which temperature and pressure condition allows the guest molecules to cause to form hydrate, in a form of emulsion where liquid of the guest molecules is dispersed in water as minute particles having a size of less than a size of voids, and thereby dispersing the guest molecules uniformly into the voids in the layer.

主权项

1. A method for substitution of gas hydrates, comprising:
injecting an emulsion into voids in a layer, the emulsion comprising drops of a liquid of second guest molecules in water, the drops of liquid of the second guest molecules being dispersed in the water as drops having a size of less than a size of the voids in the layer, wherein hydrates of first guest molecules exist in the voids in the layer and the second guest molecules form hydrates under higher temperature and lower pressure conditions as compared with temperature and pressure conditions under which the hydrates of the first guest molecules form so that the hydrate of the first guest molecules in the voids is substituted by a hydrate of the second guest molecules.