Method for dumping and disposing of carbon dioxide gas and apparatus therefor
Patent 5261490 Issued on November 16, 1993. Estimated Expiration Date: 
March 3, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 3, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3627047 3926259 Gas recovery from hydrate reservoirs Storage of fuel gas Method and apparatus for the selective absorption of gases Apparatus for recovering gaseous hydrocarbons from hydrocarbon-containing solid hydrates Method for production of hydrocarbons from hydrates System and method for disposal of noncondensable gases from geothermal wells Method and apparatus of obtaining natural gas from a maritime deposit Patent #: 5025860 InventorApplicationNo. 846290 filed on 03/03/1992US Classes:166/266, Injection and producing wells166/52, PLURAL WELLS166/57, WITH HEATING, REFRIGERATING OR HEAT INSULATING MEANS166/267, Separating outside of well166/402CO2 or carbonated gasExaminersPrimary: Suchfield, George A.Attorney, Agent or FirmForeign Patent References
International ClassesE21B 036/00E21B 043/24 E21B 043/40 Foreign Application Priority Data1991-03-18 JPAbstractA method for dumping carbon dioxide gas into the ground of the sea bottom comprises injecting carbon dioxide gas into the ground of the sea bottom to fix the carbon dioxide gas in the ground of the sea bottom. A method for dumping carbon dioxide gas into the ground of permafrost regions comprises boring a well and injecting carbon dioxide into the ground to fix carbon dioxide in the ground. A method for recovering and consuming natural gas found in the ground of permafrost regions with low pollution comprises exploiting and consuming hydrate of natural gas present in permafrost regions to produce carbon dioxide as a by-product and injecting the carbon dioxide by-product into the ground of permafrost. A method for gathering natural gas by using dumped carbon dioxide gas as a heat generating source comprises injecting carbon dioxide gas or liquefied carbon dioxide gas into layers of hydrate of natural gas present in the ground of the sea bottom or in permafrost regions. An apparatus for gathering natural gas by using carbon dioxide gas as a heat generating source comprises an injection pipe for injecting carbon dioxide, a pressure injection apparatus for injecting carbon dioxide, a gathering pipe for gathering a mixed gas containing natural gas separated from the layers of hydrate of natural gas and carbon dioxide and a gas separator for separating natural gas from the gathered mixed gas.Other References
Field of SearchFluid storage in earthen cavitySupply or recovery of stored fluid by separate fluid Geologic, marine, or extraterrestrial storage and containment (e.g., tectonic, volcanic, deep natural, manmade earth cavity, submarine placement sites, lunar, earth orbital, and solar placement, etc.) Separating material entering well Injection and producing wells Separating outside of well Including fracturing or attacking formation Heating, cooling or insulating Multiple wells Producing the well Including non-expulsive material placed in well PLURAL WELLS WITH HEATING, REFRIGERATING OR HEAT INSULATING MEANS WELLS IN FROZEN TERRAIN | |
