Patent ID: 7722289

Claim:
A system for storing biogas, the system comprising: a well extending below potable water aquifier; a well casing extending along length of the well, wherein the well casing and the well form a conduit, wherein the conduit is capable of storing biogas; a transport system for transporting biogas from a waste disposal facility to the well; a compressor for pressurizing the biogas in the well; an injection apparatus coupled with the well for injecting biogas into the conduit formed by the well casing and the well; a system for removing components other than methane from the biogas, wherein the removal occurs while the biogas is inside of the well; and a collection apparatus coupled with the well for withdrawing biogas from the conduit formed by the well casing and the well, wherein, the biogas comprises more than 40% methane and less than 75% carbon dioxide.