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| Number | Title | Issue Date |
| 7318315 | Method of combining wastewater treatment and power generation technologies Applicant's preferred embodiment utilizes municipal wastewater effluent to replenish a depleted geothermal field. Condensate produced by expanding steam produced in the geothermal field through a steam turbine-generator may be pooled with cooked water collected from... | 01/15/2008 |
| 7192220 | Apparatus and method to prepare in-situ pilings with per-selected physical properties Method and apparatus to produce in-situ pilings, controllably injecting binder and water into soil formation in which the piling is to be formed, the quantities of water and binder being respective to strength demands for the piling, and to demand for water to suppl... | 03/20/2007 |
| 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 used to inhibit migration of fluids. Inhibition of migration of fluids ... | 07/18/2006 |
| 7069990 | Enhanced oil recovery methods A process for enhanced oil recovery from an extraction operation comprises the steps of selection of an appropriate hydrocarbon bearing stratum; providing at least one production well and one injection well; and injecting into the target stratum a slurry formed from... | 07/04/2006 |
| 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 used to inhibit migration of fluids into and/or out of the treatment ... | 04/25/2006 |
| 6962561 | Method for biosolid disposal and methane generation A method for the disposal of biosolids, the method comprising providing a supply of biosolids; selecting an introduction formation below a ground surface, the introduction formation comprising a natural gas formation in a gas accumulation zone; introducing the bioso... | 11/08/2005 |
| 6502633 | In situ water and soil remediation method and system The remediation treatment creates environmentally neutral species from hydrocarbon contaminants. For soils having a low porosity, fissures are created in the site by, for example, fluid, i.e., hydraulic or pneumatic, fracturing. A catalyst is injected int... | 01/07/2003 |
| 6443227 | Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments A method and apparatus for initiating an azimuth controlled vertical hydraulic fracture in unconsolidated and weakly cemented soils and sediments using active resistivity to monitor and control the fracture initiation and propagation. Separate or overlapp... | 09/03/2002 |
| 6412559 | Process for recovering methane and/or sequestering fluids A process for recovering methane from a coal bed and/or sequestering a fluid more strongly adsorbing than methane ("SAG") in a coal bed involves fracturing an injection well and cyclically injecting SAG with intervening shut-in periods. Even though the ab... | 07/02/2002 |
| 5944446 | Injection of mixtures into subterranean formations This invention relates to an environmental engineering process for injecting a mixture into the ground to act as a containment barrier for fluids or gases or to act as in situ waste remediation process. The process involves pumping a mixture into the grou... | 08/31/1999 |
| 5734988 | Method and apparatus for the injection disposal of solid and liquid waste materials into subpressured earth formations penetrated by a borehole Methods and apparatus for the disposal of solid particulate material in subterranean formations penetrated by a borehole are disclosed. The invention includes, but is not limited to, the disposal of oil field waste and therefore provides means and methods... | 03/31/1998 |
| 5536115 | Generating multiple hydraulic fractures in earth formations for waste disposal Slurried solids waste materials are disposed of into a preselected subterranean disposal zone by generating radially extending hydraulic fractures from a disposal well and filling the primary fractures with disposal material until screenout is observed or... | 07/16/1996 |
| 5524709 | Method for acoustically coupling sensors in a wellbore A method for releasably, acoustically-coupling an acoustical-energy sensor in a wellbore wherein the sensor is lowered in the wellbore and a soluble cement is flowed into the wellbore to completely encompass the sensor. The soluble cement is allowed to ha... | 06/11/1996 |
| 5503225 | System and method for monitoring the location of fractures in earth formations A system and method for the real-time monitoring of the location (e.g. vertical extent) of a fracture within a waste disposal formation as that fracture is being formed. Acoustical-energy sensors (e.g. geophones) are isolated within the annulus of the wel... | 04/02/1996 |
| 5502267 | Organic and metallic waste disposal in bentonite-water mixtures Organic waste such as hydrocarbon waste, refinery sludges, tank bottom sludges, certain wastes from paint, solvent and wax manufacturing and active metals and active metal oxide compositions are disposed of by combining such compositions with bentonite an... | 03/26/1996 |
| 5489740 | Subterranean disposal of wastes Toxic wastes including naturally occurring radioactive materials are disposed of into subterranean earth formation zones which are bounded both above and below by zones which have higher in situ compressive stresses. The materials are prepared in a slurry... | 02/06/1996 |
| 5484231 | Disposal of slurries of municipal waste in deep geothermal reservoirs A process for obtaining decomposition products from a slurry of municipal waste by use of a geothermal reservoir. The process comprises placing the slurry of municipal waste into a geothermal reservoir; sealing the opening of the geothermal reservoir; and... | 01/16/1996 |
| 5463164 | Waste disposal in subterranean earth formations Predetermined quantities of slurried solids wastes are injected into earth formation waste disposal zones having a predetermined in situ stress distribution and compaction rate for a predetermined hydraulic injection pressure and wherein the disposal zone... | 10/31/1995 |
| 5405224 | Subterranean disposal of liquid and slurried solids wastes Liquid wastes and slurries of ground solids wastes are injected into earth formation zones which have a fluid content of fluid similar to the liquid wastes or slurry which is below the irreducible saturation level for the liquid wastes or slurry to be inj... | 04/11/1995 |
| 5318382 | Method and apparatus for hydraulic embedment of waste in subterranean formations There is disclosed a method and apparatus for waste disposal by hydraulic embedment in a subterranean formation. A method in accordance with the present invention comprises the steps of drilling into stable geologic formations thousands of feet below grou... | 06/07/1994 |
| 5314265 | Waste disposal in hydraulically fractured earth formations Slurries of relatively fine particles of solids wastes and similar materials are disposed of through injection wells which penetrate earth formation disposal zones which have a minimum in situ compressive stress generally less than an overburden zone and ... | 05/24/1994 |
| 5295763 | Method for controlling gas migration from a landfill The present invention is a method of controlling this gas migration through the subsurface strata about the landfill. The method comprises the step of installing an extraction well having a zone of influence in proximity to the perimeter of the landfill. ... | 03/22/1994 |
| 5226749 | Waste disposal in hydraulically fractured earth formations Slurried solid waste materials are injected into subterranean earth formations in a zone of interest which has a relatively low in situ compressive stress bounded by zones of higher in situ compressive stress and wherein the zone of interest has alternate... | 07/13/1993 |
| 5133624 | Method and apparatus for hydraulic embedment of waste in subterranean formations There is disclosed a method and apparatus for waste disposal by hydraulic embedment in a subterranean formation. A method in accordance with the present invention comprises the steps of drilling into stable geologic formations thousands of feet below grou... | 07/28/1992 |
| 5108226 | Technique for disposal of drilling wastes A method for disposing of drilling wastes where an aqueous saline solution is used to disperse a drilling fluid or mud. The saline solution containing the dispersed drilling fluid or mud is injected into a disposal well or high permeability oil depleted z... | 04/28/1992 |
| 4828030 | Viscous oil recovery by removing fines A process for disposing of fines produced with a substantially high viscosity oil. The viscosity of the oil will generally be less than 19 API degrees. Produced fines are mixed into a desired hydraulic fracturing fluid which fluid is used to fracture the ... | 05/09/1989 |
| 4790688 | Landfill leachate control process and product The invention involves the selective emplacement of an impermeable polymeric barrier in the semi-permeable substructure, faulted or fractured geologic barriers which underlie leaking waste disposal sites. The emplacement of the barrier requires the creati... | 12/13/1988 |
