| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166251100 | Including in situ combustion | 7 |
| 20080236817 | SYSTEM AND METHOD FOR RECOVERY OF FUEL PRODUCTS FROM SUBTERRANEAN CARBONACEOUS DEPOSITS VIA AN ELECTRIC DEVICE - A system for gasification of carbonaceous deposits below the ground surface comprising: an injection well assembly comprising one end positioned at the ground surface and the opposite end of the injection well assembly located within the carbonaceous deposit; a production well assembly comprising one end positioned at the ground surface and the opposite end of the production well assembly located within the carbonaceous deposit; a non-vertical reaction shaft assembly located within the carbonaceous deposit a distance below ground surface, the non-vertical reaction shaft having a length and comprising an injection end in communication with the end of the injection well assembly located within the carbonaceous deposit and a production end in communication with the end of the production well assembly located within the carbonaceous deposit; and a mobile electric device configured to move within the non-vertical reaction shaft assembly. A method for gasifying underground carbonaceous deposits using an electric device. | 10-02-2008 |
| 20100276139 | SYSTEM AND METHOD FOR GENERATION OF SYNTHESIS GAS FROM SUBTERRANEAN COAL DEPOSITS VIA THERMAL DECOMPOSITION OF WATER BY AN ELECTRIC TORCH - A system for gasification of coal deposits below the ground surface comprising an injection well assembly comprising one end positioned at the surface and the opposite end located adjacent or within the coal deposit; a production well assembly comprising one end positioned at the surface and the opposite end of the production well assembly located adjacent or within the coal deposit; a non-vertical reaction shaft assembly located adjacent or within the coal deposit, the non-vertical reaction comprising an injection end in communication with the end of the injection well assembly located adjacent or within the coal deposit and a production end in communication with the end of the production well assembly located adjacent or within the coal deposit; and an electric torch configured to move within the non-vertical reaction shaft assembly and create an oxidant and moderator downhole. A method for gasifying coal deposits is also provided. | 11-04-2010 |
| 20110067858 | FISHBONE WELL CONFIGURATION FOR IN SITU COMBUSTION - An underground reservoir is provided comprising an injection well and a production well. The production well has a horizontal section oriented generally perpendicularly to a generally linear and laterally extending, upright combustion front propagated from the injection well. | 03-24-2011 |
| 20120018151 | Inert gas injection to help control or extinguish coal fires - A method of locating and controlling subsurface coal fires is provided that includes mapping a subsurface coal bed fire using a magnetometer, where the mapping includes locating a combustion zone and an air inlet to the combustion zone of the coal bed fire, drilling an injection port from the earth surface to a previously burned zone of the combustion zone, where the injection port is disposed between the air inlet and the combustion zone, inserting a tube in the injection port, where the tube has an exterior tube seal disposed around the tube, and the exterior tube seal isolates the earth surface from the combustion zone along an exterior of the tube. The method further includes injecting an inert gas through the tube to the combustion zone, where the inert gas controls the combustion zone of the coal bed fire. | 01-26-2012 |
| 20140034302 | METHOD OF OPERATION OF A DOWNHOLE GAS GENERATOR WITH MULTIPLE COMBUSTION CHAMBERS - A method for generating gasses in a borehole for use in the recovery of petroleum products. The method utilizes a multiple chamber gas generator system that includes a plurality of gas generators each having an elongate combustion chamber. The multiple chamber gas generator system is positioned in the borehole, and the operation of each of the plurality of gas generators is controlled to selectively turn each of the gas generators on or off, to regulate the volume of gasses being generated in response to changes in conditions within the borehole. | 02-06-2014 |
| 20140262249 | HYDRAULIC FRACTURING WITH EXOTHERMIC REACTION - Method of stimulating subterranean formations for are given in which a thermite is placed downhole and then ignited. The thermite may be ignited with a downhole tool, the fracture may be mapped, and the thermite-affected region of the formation may be reconnected to the surface after the thermite reaction through the original or a second wellbore. | 09-18-2014 |
| 20150107828 | SYSTEMS AND METHODS FOR REGULATING AN IN SITU PYROLYSIS PROCESS - Systems and methods for regulating an in situ pyrolysis process. The methods may include producing a product fluid stream from an active pyrolysis region of a subterranean formation. The methods further may include detecting a concentration of a first component in the product fluid stream and/or detecting a concentration of a second component in the product fluid stream. The concentration of the first component may be indicative of an intensive property of the pyrolyzed fluid production system. The concentration of the second component may be indicative of an extensive property of the pyrolyzed fluid production system. The methods further may include regulating at least one characteristic of the pyrolyzed fluid production system based upon the concentration of the first component and/or based upon the concentration of the second component. The systems may include systems that are configured to perform the methods. | 04-23-2015 |
