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8109047 |
System for recovering hydrocarbons from water-containing hydrocarbonaceous material using a constructed infrastructure
A constructed permeability control infrastructure can include a permeability control impoundment defining a substantially encapsulated volume. A comminuted water-containing hydrocarbonaceous...
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7862705 |
Methods of recovering hydrocarbons from hydrocarbonaceous material using a constructed infrastructure and associated systems
A method of recovering hydrocarbons from hydrocarbonaceous materials can include forming a constructed permeability control infrastructure. This constructed infrastructure defines a substantially...
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7311468 |
Process for the disposal of sulfur
Process for the disposal of sulfur which comprises melting the sulfur, optionally in the presence of hydrogen sulfide, and injecting the molten sulfur into geological structures having a...
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7077198 |
In situ recovery from a hydrocarbon containing formation using barriers
A method is described for inhibiting migration of fluids into and/or out of a treatment area undergoing an in situ conversion process. Barriers in the formation proximate a treatment area may be...
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7032660 |
In situ thermal processing and inhibiting migration of fluids into or out of an in situ oil shale formation
An oil shale formation may be treated using an in situ thermal process. Fluid migration into and/or out of a treatment area in the formation may be inhibited. In some embodiments, a barrier may be...
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6932121 |
Method for offloading and storage of liquefied compressed natural gas
A method for offloading and storage of liquefied compressed natural gas into a salt dome by using inserting displacement gas with a pressure greater than a pressure of the liquefied compressed...
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6672798 |
Sulfur storage system
A system is provided for the storage and long-term conservation of commercially produced sulfur. An underground cavity is identified and selected from an earth formation such that its permeability...
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6582025 |
Sulfur storage method
A method and a system are provided for the storage and long-term conservation of commercially produced sulfur. An underground cavity is identified and selected from an earth formation such that its...
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6152356 |
Hydraulic mining of tar sand bitumen with aggregate material
A method and apparatus for the hydraulic removal of bitumen from a tar sand deposit comprises forming a borehole into the tar sand deposit and securing a casing into the borehole. Into the casing...
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5135286 |
Residue recovery process and apparatus
The recovery of materials from viscous bodies of petroleum residue and asphalt deposits which contain substantial quantities of the deposits by the use of an induced thermal gradient in a region of...
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4869555 |
Apparatus for recovery of sulfur
Elemental sulfur in substantially pure form is recovered from an underground sulfur formation which has been previously been mined by the Frasch process by injection of hot water into the...
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4776638 |
Method and apparatus for conversion of coal in situ
A method for the electro-thermal and electrochemical underground conversion of coal into oil and by-products comprises the steps of inserting an underground probe into a bore hole until the probe...
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4670634 |
In situ decontamination of spills and landfills by radio frequency heating
A water-containing region at or near the surface of the earth, such as a landfill, that is contaminated with hazardous materials is decontaminated by heating the region with bound radio frequency...
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4597609 |
Method of melting sulphur
A method of melting sulphur, in block form, uses a heating device having lower heating surfaces and means for withdrawing sulphur. The device is positioned on a block of sulphur so that the heating...
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4590348 |
System for heating materials with electromagnetic waves
A system for controlling microwave heaters in order to efficiently heat frozen ground. The heaters are energized and deenergized by a control unit in response to the temperature sensed a selected...
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4579391 |
Method of electric smelting to matte in situ
A method of extraction of metallic sulfides (Matte) from an ore deposit in situ. The contained sulfides are smelted by resistor induced heat creating a matte containing precious metals, including,...
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4497635 |
Sulfur remelting
This invention is directed to a novel sulfur remelting method and an apparatus for employing the method. The method of remelting sulfur from a solid sulfur block may be comprised of generating...
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4413859 |
Mining of sulphur with foam barrier
A method for mining subsurface deposits by injection of foam or a foaming agent plus air or other gas, or foam-making materials, into a selected porous zone above a sulphur bed or zone, and...
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4249775 |
Mining of sulphur
A method of mining sulphur from an underground deposit overlying a soluble salt layer, wherein spaced parallel rows of repression boreholes and depression boreholes are drilled to penetrate into...
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4241953 |
Sulfur mine bleedwater reuse system
A novel system is disclosed for utilizing, in the mining of subterranean sulfur by the Frasch process, the heat of water that has accumulated underground above at least a portion of the...
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4218309 |
Removal of sulfur from shale oil
Crude shale oil produced by in situ retorting of oil shale can contain from about 1 to 2% sulfur by weight, the sulfur being distributed widely through the lower and higher boiling fractions of the...
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4203625 |
Apparatus for sulfur melting by lateral displacement of heating element
An apparatus and a method for melting block sulphur employ a heating element pivotally mounted on a carriage on a trailer. The heating element is pivoted from a collapsed, transport position to an...
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4171200 |
Process and apparatus for in situ melting of sulphur from solid sulphur storage block
This invention relates to a method and apparatus for the in situ melting and removal of liquid sulphur from a solid sulphur storage block. The method comprises supplying heat to the storage block...
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4157847 |
Method and apparatus for utilizing accumulated underground water in the mining of subterranean sulphur
Novel method and apparatus for utilizing, in the mining of subterranean sulphur by the Frasch process, the heat of water that has accumulated underground above at least a part of said subterranean...
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4156545 |
Process for heating and chemically treating an aqueous process fluid
An integrated system and process is provided to heat and chemically treat an aqueous process fluid such as the water required for producing sulfur by the Frasch process without undue scaling and...
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4124253 |
Sulfur well sealing method
A method is disclosed for sealing a sulfur well wherein the well is made to discharge only sulfur and air instead of mixtures of sulfur, water and air. The method is used in conjunction with the...
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4123107 |
Integrated sulfur mining - sulfuric acid production system
An integrated sulfur mining -- sulfuric acid production system is provided wherein a portion of the sulfur produced in the mining operation is consumed in a sulfuric acid manufacturing plant which...
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4059156 |
Geothermal brine production
There is disclosed a method for the production of geothermal brines that avoids depressuring the brine below its flash point in the well bore and thereby avoids the scaling and plugging unavoidably...
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4050740 |
Method of and apparatus for melting block sulphur
A method of, and apparatus for, melting block sulfur to avoid contamination of the environment by sulfur dust employ a heating element having a plurality of flow passages formed by pipe sections in...
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3988036 |
Electric induction heating of underground ore deposits
A method of extracting metal from an underground ore body. The body is heated by electric induction to a temperature sufficient to break up the metallic ore compound and liquefy the metal. The...
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3630573 |
SULFUR MINING WITH STEAM
This is an improvement and modification of the Frasch-type underground sulfur-mining process. The primary source of heat is steam with temperature up to 600°-800° F. which is injected into the s...
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3623770 |
METHOD TO IMPROVE PRODUCTION OF SULFUR
A method of mining sulfur in a subterranean formation containing a sulfur-bearing zone and a porous zone adjacent said sulfur-bearing zone comprising introducing a silicate solution into the porous...
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3620571 |
SINGLE-WELL HEATED GAS MINING METHOD AND APPARATUS
A mineral recovery method useful for mining liquefiable minerals, e.g., sulfur, involves the injection of hot gas, preferably with steam, through a series of concentric injection tubes which...
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3612608 |
PROCESS TO ESTABLISH COMMUNICATION BETWEEN WELLS IN MINERAL FORMATIONS
A solution mining operation is established by drilling a well into a soluble salt formation, hydraulically creating and maintaining a fracture pool, defining the area of the fracture pool by...
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3525550 |
APPARATUS AND METHOD FOR PRODUCING SULFUR LOCATED ABOVE A HOT AQUIFER
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3464885 |
METHODS FOR EFFECTING CONTINUOUS SUBTERRANEAN REACTIONS
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3254921 |
Recovering mercury from subsurface ore deposits
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3205012 |
Solution mining system using heat exchange tubes
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3191679 |
Melting process for recovering bitumens from the earth
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3131914 |
Burning process for recovering sulfur from the earth
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3095031 |
Burners for use in bore holes in the ground
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3084919 |
Recovery of oil from oil shale by underground hydrogenation
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3041274 |
Heating of water and mining of sulphur therewith
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3017168 |
In situ retorting of oil shale
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3001776 |
Method of preparation for and performance of in situ retorting
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2991987 |
Processes for heating a mining liquid and mining therewith a substance modified by heat
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2974937 |
Petroleum recovery from carbonaceous formations
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2954218 |
In situ roasting and leaching of uranium ores
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2947690 |
Heating of sea water for sulfur mining
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2924245 |
Pipe line for hot fluids and method of constructing same
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