Patent ID: 8800671

Claim:
A process comprising: obtaining produced gas from an underground production well for producing hydrocarbon gas, said produced gas including at least one hydrocarbon gas and waste material that include carbon dioxide, said carbon dioxide being separable into a first portion and a remaining portion; dehydrating said produced gas to form dehydrated produced gas; processing the dehydrated produced gas to form a first stream that includes said at least one hydrocarbon gas and a first portion of the carbon dioxide as a gas and to form a second stream that includes as a liquid said waste material and the remaining portion of said carbon dioxide; processing said first stream to separate said first portion of carbon dioxide gas from said hydrocarbon gas to form separated carbon dioxide gas and processing said separated carbon dioxide gas into a form for combination with and then combining with said second stream; supplying said hydrocarbon gas as an output; pressurizing said second stream and supplying said pressurized second stream to an injection well spaced from a well for the production of hydrocarbons; and positioning said pressurized second stream into said injection well.