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Class 166/260 - Injecting specific fuel or catalyst for burning into formation


Subclass of Class 166 - Wells
Definition: A process in which (1) a burnable substance is placed into
No. of patents: 65
Last issue date: 02/28/2012


1    
NumberTitleIssue Date
8122955Downhole burners for in situ conversion of organic-rich rock formations
A method for in situ heating of a selected portion of a targeted organic-rich rock formation such as an oil shale formation is provided. The method includes the steps of providing casing in a wellbore extending to a depth within or below the selected portion of the ...
02/28/2012
8118095In situ combustion processes and configurations using injection and production wells
Methods and systems relate to in situ combustion utilizing configurations of injection and production wells to facilitate the in situ combustion. The wells define vertically deviated lengths that have different orientations from one another. Further, heating process...
02/21/2012
8047285Method and apparatus to deliver energy in a well system
The subject matter relates to an apparatus for insertion of a conduit into a well system bore to introduce a reactant fluid over a subterranean catalyst to initiate decomposition of the reactant fluid which resultant energy release may be utilized to perform work or...
11/01/2011
7882893Combined miscible drive for heavy oil production
A method of oil production is provided. The method includes forming an injection well and a production well. The method also includes pumping a mixture of oxygen and carbon dioxide (CO2) into the injection well. In addition, the method also includes minim...
02/08/2011
7516789Hydrocarbon recovery facilitated by in situ combustion utilizing horizontal well pairs
The invention provides hydrocarbon recovery processes that may be utilized in heavy oil reservoirs. Horizontal hydrocarbon production wells may be provided below horizontal oxidizing gas injection wells, with distant combustion gas production wells offset from the i...
04/14/2009
7513306Method for natural gas production
A method of dissociating methane hydrate deposits in-situ is provided in which a supply of oxygen, carbon dioxide, and fuel are provided, the oxygen and the carbon dioxide are mixed to form an oxidizer fluid, and the fuel is combusted downhole by reacting it with th...
04/07/2009
7343971Method for natural gas production
A method and system for dissociating methane hydrate deposits in-situ is provided wherein an oxidizer fluid and a supply of fuel, both at a pressure higher than that of the methane hydrate deposit, are supplied and delivered to the methane hydrate deposit. The fuel ...
03/18/2008
7185702Methods and compositions for the in-situ thermal stimulation of hydrocarbons using peroxide-generating compounds
One embodiment provides a method for stimulating hydrocarbon production in a subterranean formation, comprising: introducing a peroxide-generating compound into a desired location in a subterranean formation, wherein the peroxide-generating compound is substantially...
03/06/2007
7152675Subterranean hydrogen storage process
A method for the storage of hydrogen within a subterranean solid carbonaceous formation such as a coal seam. At least one well extends from the surface of the earth into the formation and a pressure gradient extends from the formation to the well to desorb methane w...
12/26/2006
7128150Acid gas disposal method
This invention is method of recovering gas from a gas-bearing subterranean formation in which gas is produced from an upper portion of the formation and a waste gas is injected into a lower portion of the formation to dispose of the waste gas. The waste gas is injec...
10/31/2006
7096947Fluid loss control additives for use in fracturing subterranean formations
The present invention relates to subterranean fracturing operations, and more particularly to fracturing fluids that includes a fluid loss control additive, and methods of using such fracturing fluids in fracturing subterranean formations. In one embodiment, a fract...
08/29/2006
7036583In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formation
A hydrocarbon containing formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion o...
05/02/2006
6973968Method of natural gas production
A method and system for dissociating methane hydrate deposits in-situ is provided wherein an oxidizer fluid and a supply of fuel, both at a pressure higher than that of the methane hydrate deposit, are supplied and delivered to the methane hydrate deposit. The fuel ...
12/13/2005
6959761In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
A coal formation may be treated using an in situ thermal process. A mixture of hydrocarbons, H2, and/or other formation fluids may be produced from the formation. Heat may be applied to the formation to raise a temperature of a portion of the formation to...
11/01/2005
6776256Method and apparatus for generating seismic waves
A method of generating seismic waves in a rock mass surrounding a well comprises the steps of: (a) providing a packer and a fluid withdrawal line within the well, wherein the packer is located below the weathering zone and defines the upper limit of a working...
08/17/2004
6488086Method of thermochemical treatment of a producing formation and combustible-oxidizing compound (COC) for realizing the same
Methods for thermochemically augmenting hydrocarbon inflow from a production formation increases the treatment efficacy in the oil and gas producing industry. A combustible oxidizing compound (COC) is pumped into the formation treatment zone and a combust...
12/03/2002
5868202Hydrologic cells for recovery of hydrocarbons or thermal energy from coal, oil-shale, tar-sands and oil-bearing formations
A system for recovery of hydrocarbons or thermal energy from host-rock fotions bearing coal, oil-shale, tar-sands or oil by use of a hydrologic cell which conveys a reacting fluid under pressure to a source-aquifer, thereafter extracting thermal energy o...
02/09/1999
5645322In-situ chemical reactor for recovery of metals and salts
An "in-situ reactor" is provided to facilitate recovery of metals and salts such as potassium, lithium, gold from salt-bearing natural waters, sediments, and rocks by passing a fluid containing such metals and salts through a reactive chemical bed placed ...
07/08/1997
5488990Apparatus and method for generating inert gas and heating injected gas
A downhole burner that economically generates hot inert gas and injects this gas into a subterranean formation. The burner has a nipple attached to a first tubing string that carries an oxidizer to the burner. The first tubing string also contains a coil ...
02/06/1996
5458193Continuous method of in situ steam generation
A continuous method of in situ steam generation for steamflooding which comprises injecting a mixture of hydrocarbons to serve as fuel for in situ combustion and water to be converted into steam by the hot formation into an upper zone of the formation, wh...
10/17/1995
5449038Batch method of in situ steam generation
A batch method of in situ steam generation for steamflooding which comprises injecting hydrocarbons into an upper zone of the formation to serve as fuel for in situ combustion, injecting oxidant into the lower zone causing at least a portion of the oxidan...
09/12/1995
5360067Vapor-extraction system for removing hydrocarbons from soil
The invention is a closed-loop, thermal process for remediating soil contaminated with hydrocarbon chemicals; it is particularly well suited for the remediation of soils containing hydrocarbons with relatively high boiling points and for the remediation o...
11/01/1994
4945984Igniter for detonating an explosive gas mixture within a well
An active combustion zone is established in situ within a permeable hydrocarbon formation. The permeable formation is periodically charged with a combustible gas, and is thereafter subjected to a high pressure pulse produced by detonation of the combustib...
08/07/1990
4895206Pulsed in situ exothermic shock wave and retorting process for hydrocarbon recovery and detoxification of selected wastes
An active combustion zone is established in situ within a permeable hydrocarbon formation. The permeable formation is periodically charged with a combustible gas, and is thereafter subjected to a high pressure pulse produced by detonation of the combustib...
01/23/1990
4793656In-situ coal drying
A method for upgrading coal in-situ is disclosed in which a treatment zone is established around an energy source placed in a cavity within a coal seam and the pore structure of the coal substantially irreversibly collapses as moisture is driven off. The ...
12/27/1988
4699213Enhanced oil recovery process utilizing in situ steam generation
A process for recovering hydrocarbons from a porous hydrocarbon-bearing formation comprising: (a) injecting water and oxygen into the formation through an injection means and causing at least a portion of the oxygen to combust with a portion of the hydroc...
10/13/1987
4573530In-situ gasification of tar sands utilizing a combustible gas
A subterranean, viscous oil-containing formation, e.g. tar sands, which has previously been exploited by an in-situ combustion operation to recover the maximum amount of oil therefrom and leaving a solid coke like residue in the formation, is first satura...
03/04/1986
4552214Pulsed in situ retorting in an array of oil shale retorts
Greater product yield and quality and continuous upgrading of shale oil with hydrogen-rich, purge mode off gases is attained by pulsing in situ retorts at different phases and intervals. In the process, flow of feed gases to the flame fronts of undergroun...
11/12/1985
4499945Silane-propane ignitor/burner
A silane propane burner for an underground coal gasification process which is used to ignite the coal and to controllably retract the injection point by cutting the injection pipe. A narrow tube with a burner tip is positioned in the injection pipe throug...
02/19/1985
4499949Combined surface and in situ tar sand bitumen production
In-situ combustion of tar sand formations is improved by introducing into an unminable tar sand formation prior to initiation of in-situ combustion hydrogen sulfide produced from upgrading tar sands from a minable tar sand formation in an area proximate t...
02/19/1985
4479540Gasification of coal
This invention relates to the gasification of coal. An oxygen jet having a pointed flame is engendered in situ, so as to strike the coal with a sheath of steam. The resultant fuel gas is drawn off while flowing in counterflow with the jet of oxygen and is...
10/30/1984
4478280Steam drive oil recovery method utilizing a downhole steam generator
Viscous oil is recovered from a subterranean, viscous oil-containing formation by a steam flooding technique wherein steam is generated in a downhole steam generator located in an injection well by spontaneous combustion of a pressurized mixture of a wate...
10/23/1984
4471839Steam drive oil recovery method utilizing a downhole steam generator
Viscous oil is recovered from a subterranean, viscous oil-containing formation by a steam flooding technique wherein steam is generated in a downhole steam generator located in an injection well by spontaneous combustion of a pressurized mixture of a wate...
09/18/1984
4470460In situ retorting or oil shale
An improved method of in situ retorting of oil shale wherein a cavern of crushed shale is created within an oil shale deposit, preferably by igniting a powerful explosion within the oil shale deposit, thereby creating a localized area or cavern of rubbliz...
09/11/1984
4458756Heavy oil recovery from deep formations
Method of heavy oil recovery from deep formations using in-situ wet oxidation steam generation, and a generator for such purpose, comprising a feed for a coal/water slurry and a feed of oxidative gas from ground level to the formation, forming a cavity in...
07/10/1984
4454915In situ retorting of oil shale with air, steam, and recycle gas
A flame front is ignited and passed through an underground oil shale retort to produce shale oil. The flame front is supported by a specially blended feed gas consisting essentially of air, steam and retort off gases. Product yield and quality are increas...
06/19/1984
4454916In-situ combustion method for recovery of oil and combustible gas
A method for recovering oil by injecting an oxygen-containing gas containing at least 50 vol. % oxygen into the formation to initiate an in-situ combustion operation, separately producing oil and a flue gas from the formation, and separating carbon dioxid...
06/19/1984
4453597Stimulation of hydrocarbon flow from a geological formation
Means are provided for increasing the productivity of a hydrocarbon formation by modifying the formation in the vicinity of the borehole by a succession of treatments utilizing a first fluid which releases energy within the borehole and a second fluid mod...
06/12/1984
4436153In-situ combustion method for controlled thermal linking of wells
A method of controlled thermal linking of an injection well and a production well, both penetrating an underground formation, accomplished by injecting oxidant into the annulus of the injection well and fuel into the tubing of an injection well in stoichi...
03/13/1984
4397352In situ combustion of tar sands with injection of gases
In-situ combustion of heavy subterranean oil formations, e.g., tar sands, is improved by introducing into the oil formation a stream of a combustible gas. The stream of gas may contain a small proportion of hydrocarbons condensable at temperature and pres...
08/09/1983
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