Method for disposing of unwanted gaseous fluid components within a solid carbonaceous subterranean formation
AssigneeAmoco Corporation
InventorsJoseph J. Chaback, Dan Yee
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Abstract
A method for disposing of unwanted gaseous fluid components, such as carbon dioxide, oxides of nitrogen, hydrogen sulfide, and oxides of sulfur within a solid carbonaceous subterranean formation, such as a coal seam. The unwanted gaseous fluid components are typically contained in a gaseous process effluent stream which is introduced into the formation.
Claims22
A method for disposing of an unwanted gaseous fluid component within a solid carbonaceous subterranean formation, the method comprising the steps of:
- a) introducing a gaseous fluid, comprising the unwanted gaseous fluid component, into the formation to sorb the unwanted gaseous fluid component to the formation;
- and
- b) maintaining disposal conditions within the formation to ensure that at least 10 percent of a disposal saturation level of an unwanted gaseous fluid component remains sorbed to the formation.
A method for disposing of an unwanted gaseous fluid component within a coal seam, the method comprising the steps of:
- a) introducing a gaseous fluid, containing the unwanted gaseous fluid component, into the coal seam;
- and
- b) ceasing to introduce the gaseous fluid into the coal seam when the coal seam becomes saturated to a desired degree with the unwanted gaseous fluid component.
A method for disposing of an unwanted gaseous fluid component, the method comprising the step of:
- injecting a gaseous fluid, comprising the unwanted gaseous fluid component, into a coal seam which is depleted of recoverable methane under disposal conditions to cause the unwanted gaseous fluid component to sorb to the coal seam.
Dependencies are inferred from the claim text.