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7623968 |
Determination of porosity and fluid saturation of underground formations
A method of determining the porosity and fluid saturation for a given volume of an underground formation through which a borehole is drilled, the method comprising: measuring, from within the...
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7575053 |
Low temperature monitoring system for subsurface barriers
A system for monitoring temperature of a subsurface low temperature zone is described. The system includes a plurality of freeze wells configured to form the low temperature zone, one or more...
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7549470 |
Solution mining and heating by oxidation for treating hydrocarbon containing formations
A method for treating an oil shale formation comprising nahcolite includes providing a first fluid to a portion of the formation. A second fluid is produced from the portion. The second fluid...
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7546873 |
Low temperature barriers for use with in situ processes
A method of forming and maintaining a low temperature zone around at least a portion of a subsurface treatment area is described. The method includes reducing a temperature of heat transfer fluid...
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7516785 |
Method of developing subsurface freeze zone
A method for lowering the temperature of a portion of a subsurface formation is provided. Preferably, the formation is an oil shale formation. The method includes the step of injecting a cooling...
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7438501 |
Ground freezing installation accommodating thermal contraction of metal feed pipes
A ground freezing system includes a metal feed pipe for delivering refrigerant to the lower end of a freeze pipe installed in a bore in the ground. The feed pipe is supported on a compression...
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7435037 |
Low temperature barriers with heat interceptor wells for in situ processes
A system for reducing heat load applied to a frozen barrier by a heated formation is described. The system includes heat interceptor wells positioned between the heated formation and the frozen...
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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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6976809 |
Method of preventing frost heave stress concentrations in chilled buried pipelines
A method for maintaining a stable soil by surrounding a chilled gas pipe with a material that has an antifreeze component that prevents the soil from freezing. By keeping the soil from freezing, it...
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6854929 |
Isolation of soil with a low temperature barrier prior to conductive thermal treatment of the soil
Freeze wells may be used to isolate an area for soil remediation. Freeze wells may form a frozen barrier around a treatment area. The frozen barrier may inhibit fluid from entering into the...
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6679655 |
Permafrost support system and method for vacuum-insulated pipe
A system for supporting pipe within soil or fill material which minimizes positional disturbances of the pipe despite seasonal fluctuations in atmospheric temperature is provided. The system...
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6565724 |
System and method for electrochemical stabilization of soil and the strengthened soil structure resulting from the above method
A plurality of rows of wells are drilled in the soil of the area to be stabilized, and then pairs of electrodes, i.e., an aluminum anode and a copper-graphite cathode connected to a source of a...
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6276873 |
Ground water remediation control process
A continuous process for removing organic contaminants from a subsurface formation. The process having the steps of: (a) treating the subsurface formation to mobilize the organic contaminants, such...
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5944444 |
Control system for draining, irrigating and heating an athletic field
A control system for an athletic field coordinates drainage by gravity or vacuum-enhanced and irrigation by monitoring water level with respect to a subsurface membrane, wherein a flow network...
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5842813 |
Method of cold technology based irrigation of areas affected by aridity
A method of a cold-technology-based irrigation of areas affected by aridity based on restoration of the energy balance (energothasis) of each unit area (square meter, acre, hectare, square...
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5804069 |
Apparatus for extracting water from marine sediments
A mesh enclosed container is provided to remove melt water from frozen blocks of contaminated sediment which has been extracted from a marine environment. The mesh enclosure has a number of porous...
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5730550 |
Method for placement of a permeable remediation zone in situ
A method for placement of remediation zones for treatment of contaminated groundwater in situ (10, 10A, 50, 60, 70, 80, 124) is described. The zones can be infiltrated or can be excavated and...
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5681130 |
Active cooling-based surface confinement system for thermal soil treatment
A thermal barrier is disclosed for surface confinement with active cooling to control subsurface pressures during thermal remediation of shallow (5-20 feet) underground contaminants. If steam...
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5667339 |
Cryogenic method and system for remediating contaminataed earth
An advancing freeze front is established in a porous region adjacent to or within contaminated earth. A flow of contaminated liquid phase water migrates toward the freeze front and a concentration...
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5660055 |
Apparatus for extraction of marine sediments via freezing
A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is...
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5636457 |
Method of dredging via freezing and removing sediment
A freezing cell having one or more freezing tines may be used to remove contaminated sediment from the beds of water bodies. The freezing tines are to be immersed into the sediment. Refrigerant is...
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5618134 |
Self-refrigeration keel-type foundation system
A self-refrigeration keel-type foundation system for supporting a structure, such as a building floor slab, hot or cold pipelines, bridging foundation and the like, above a permafrost earth strata...
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5564862 |
Method of improved landfill mining
The present invention includes a method of landfill mining which comprises the following steps: (1) converting the landfill to aerobic production by injection of moisture and air, and a raw...
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5558779 |
Method and apparatus for extracting water from marine sediments
A mesh enclosed container is provided to remove melt water from frozen blocks of contaminated sediment which has been extracted from a marine environment. The mesh enclosure has a number of porous...
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5551799 |
Cryogenic method and system for remediating contaminated earth
An advancing freeze front is established in a porous region adjacent to or within contaminated earth. A flow of contaminated liquid phase water migrates toward the freeze front and a concentration...
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5476992 |
In-situ remediation of contaminated heterogeneous soils
A process for the in-situ remediation of a contaminated heterogeneous soil region comprising: (a) introducing material for treating contaminants in a contaminated heterogeneous soil region into at...
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5441366 |
Method and apparatus for compacting garbage dumps by means of depth vibration
For a method for compacting garbage dumps (10) by means of depth vibration, which is carried out by means of at least one depth vibrator (4) and puts the dump mass (1, 2, 3) into vibration, one...
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5416257 |
Open frozen barrier flow control and remediation of hazardous soil
Treatment of flowable underground contaminants comprises freezing at least one open underground barrier volume to form a wall (10) near the contaminated region (12) in the ground (14), where the...
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5380127 |
Non-entry method of underground excavation in weak or water bearing grounds
A method of excavating an underground area liable to flooding or collapsing during excavation, wherein the area is susceptible to disaggregation by high pressure water jet and is located above rock...
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5345033 |
Method for the neutralization of hazardous materials
A method for neutralizing hazardous materials wherein the material and if applicable, the device within which such material is contained, is first cooled to substantially sub-ambient temperatures....
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5339893 |
Apparatus for containing toxic spills employing hybrid thermosyphons
The present invention is directed to a hybrid thermosyphon which may be rapidly deployed to create a frozen soil barrier for containing toxic spills. In a particular embodiment, a plurality of...
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5261794 |
Fluid pressure feeding apparatus
A fluid pressure feeding apparatus for feeding cold water for cooling a mining pit into the pit and pumping water and muddy water heated within the mining pit onto the ground. A controller for...
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5078544 |
Arrangement for the changeover of liquids when transported by means of a three chamber tube feeder
An arrangement for the changeover of mine or warm water and fresh or cold water in underground mining by a three chamber tube feeder with constant filling and discharge direction, which feeder is...
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5055185 |
Anti-freeze separator assembly
This invention relates to an anti-freeze separator assembly connected to a piece of equipment in outdoor freezing conditions in order to take a fluid, such as water, and treat same for subsequent...
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5054541 |
Ground coil assembly
A prefabricated ground coil assembly for use in association with a ground source heat pump comprises a flexible pipe configured as a double spiral. The outermost turns of the spiral are provided...
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5050386 |
Method and apparatus for containment of hazardous material migration in the earth
A method and system is disclosed for reversibly establishing a closed, flow-impervious cryogenic barrier about a predetermined volume extending downward from a containment site on the surface of...
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4998848 |
Method and apparatus for removing ground contaminants
A method and apparatus for removing fluid contaminants from a solid material is described. In a preferred embodiment, a cylindrical container having openings in its surface through which...
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4991998 |
Mine cooling power recovery system
A mine cooling power recovery system wherein a low-pressure slurry pump for charging the mud slurry produced in a mine into a pressure changeover feed chamber is arranged in parallel to a warm...
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4974425 |
Closed cryogenic barrier for containment of hazardous material migration in the earth
A method and system is disclosed for reversibly establishing a closed, flow-impervious cryogenic barrier about a predetermined volume extending downward from a containment site on the surface of...
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4836716 |
Method and apparatus for piled foundation improvement through freezing using surface mounted refrigeration units
A method and apparatus for increasing the load bearing capacity of tubular piles by freezing an area of soil surrounding the piles. A refrigeration unit is located on the surface of an offshore...
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4676694 |
Process and installation for the congelation of grounds by means of a cryogenic liquid
The injection of liquid nitrogen into the probe (2) is regulated in an on-off manner so as to maintain the temperature of the ground at the coldest point above a value within the range of between...
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4632604 |
Frozen island and method of making the same
An island adapted to be put into place in arctic regions in a body of water having a soil layer below water level and above a permafrost line. In one form of the island, an island body is placed on...
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4597444 |
Method for excavating a large diameter shaft into the earth and at least partially through an oil-bearing formation
A method for positioning a large diameter shaft from the surface into the earth and at least partially through a subterranean oil-bearing formation, said method comprising (a) Positioning a...
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4594859 |
Ice skating rink
An ice rink for speed competition skating has a rink floor which is divided into longitudinal spans or sections by recesses extending transversely of the freezing zone of the rink. On each span or...
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4551985 |
Rink covering structure
A method for creating an ice-skating rink comprising an excavation in the ground lined with polyethylene and filled with salt water; a pump and sprayer used in the winter to build up a layer of...
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4516878 |
Tunnel constructing
Tunnels are constructed by freezing soil and removing frozen soil between starting and end shafts of the tunnels. Tunnels are driven in an uncomplicated manner in rapidly changing soils without...
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4475844 |
Method and apparatus for restricting local variations in ground level in the vicinity of surface water drains and manholes
A tubular drain vertically positioned within the ground beneath the ground level in the vicinity of surface water and having a tubular drain cover-support member anchored in the surface ground...
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4467619 |
Method of using frozen salt water to maintain a low cost, low energy consuming indoor or outdoor ice rink
A method for creating an ice-skating rink comprising an excavation in the ground lined with polyethylene and filled with salt water; a pump and sprayer used in the winter to build up a layer of...
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4464082 |
Chilled gas pipeline installation and method
A chilled-gas carrying pipeline installation in soil or rock zones with different heave properties is disclosed which includes an earth-covered buried steel pipe with insulation formed of high...
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