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| Number | Title | Issue Date |
| 7476054 | Process for high-volume disposal of sludge and collection of combustible gases A method for the disposal of sludge and collection of byproduct gases of decomposition uses a crisscross trenching pattern, excavated, filled and covered in a sequential and cyclic manner. Once the crisscrossing trenches have been completely filled with sludge, evol... | 01/13/2009 |
| 7438129 | Water treatment method for heavy oil production using calcium sulfate seed slurry evaporation A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Feedwater is then acidified and steam stripped to remove alkalinity and dissolved non-condensable ga... | 10/21/2008 |
| 7428926 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. Pretreated produced water is then fed to an evaporator. Up to 95% or more of the pretreated produced... | 09/30/2008 |
| 7377721 | Methods for using reversible phase oil-based drilling fluid Invert emulsion compositions including an oleaginous, a non-oleaginous and an amine surfactant that are useful in the oil and gas well drilling art are disclosed. The amine surfactant is selected so that the invert emulsion can be converted form a water-in-oil type ... | 05/27/2008 |
| 7347648 | Landfills and methods of operating a landfill Landfills and their methods of operation are disclosed. Through the controlled introduction of septage into solid municipal waste, refuse decomposes faster to achieve additional landfill space. A business method of operating the landfill is also disclosed. ... | 03/25/2008 |
| 7284604 | Methods for measurement of a dimensional characteristic and methods of predictive modeling related thereto A method of optically determining a change in magnitude of at least one dimensional characteristic of a sample in response to a selected chamber environment. A magnitude of at least one dimension of the at least one sample may be optically determined subsequent to a... | 10/23/2007 |
| 7150320 | Water treatment method for heavy oil production A process for treating produced water to generate high pressure steam. Produced water from heavy oil recovery operations is treated by first removing oil and grease. If necessary, the pH is then adjusted, normally downward, releasing at least some carbonate alkalini... | 12/19/2006 |
| 7128150 | Acid 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 |
| 7097386 | Simultaneous development of underground caverns and deposition of materials A method is provided for simultaneously developing caverns while depositing wastes or other materials in them. A well is first drilled into a salt formation and the development of a salt cavern by means of solution mining is initiated. When the development of the ca... | 08/29/2006 |
| RE39244 | Acid gas disposal Acid gas is liquified by compression and cooling, mixed with water under pressure and flowed into a disposal well. ... | 08/22/2006 |
| 7077201 | Water treatment method for heavy oil production An evaporation based method of treating produced water from heavy oil production. A produced water from heavy oil recovery operations treated by first removing oil and grease to a desired level, preferably to about twenty parts per million, or less. If necessary, th... | 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 |
| 7063657 | Method of constructing underground gallery by using pneumatic transfer system and stratum disposal method A method of constructing underground galleries using a pneumatic transfer system and a stratum disposal method are provided, wherein in constructing a disposal gallery of a stratum disposal site and tunnels such as mountain tunnels or in performing stratum disposal ... | 06/20/2006 |
| 7056062 | Subterranean waste disposal process and system A method for using large chambers, located deep within the earth, for the disposal of processed waste is disclosed. In this context, waste includes solid waste from sewage, and other organic-waste materials from urban, agricultural or industrial sources. These waste... | 06/06/2006 |
| RE39077 | Acid gas disposal Acid gas is liquified by compression and cooling, mixed with water under pressure and flowed into a disposal well. ... | 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 |
| 6902002 | Cement compositions comprising improved lost circulation materials and methods of use in subterranean formations The present invention relates to subterranean cementing operations and, more particularly, to cement composition that include improved lost circulation materials, and methods of using such cement compositions in subterranean formations. In certain exemplary embodime... | 06/07/2005 |
| 6793017 | Method and apparatus for transferring material in a wellbore In a method and apparatus for transferring material in a wellbore in an earth formation, a pipe is inserted into the wellbore. A conduit is inserted alongside the pipe into the wellbore. The conduit is fixed to the pipe and has a first section with a perforated wall... | 09/21/2004 |
| 6609578 | Shale hydration inhibition agent and method of use A water-base fluid for use in drilling wells and other drilling operation includes a shale which swells in the presence of water. The fluid preferably includes: an aqueous based continuous phase, and a shale hydration inhibition agent having the formula: ... | 08/26/2003 |
| 6491616 | Method for biosolid disposal and methane generation A method for the disposal of biosolids, the method comprising a) providing a supply of biosolids; creating a slurry of the biosolids suitable for injecting; selecting an injection formation below a ground surface, the injection formation comprising a natu... | 12/10/2002 |
| 6409650 | Method for biosolid disposal and methane generation A method for the disposal of biosolids, such as municipal sewage waste, comprising injecting the biosolids into a subsurface injection formation. The method can include recovering methane generated from the degradation of the biosolids.... | 06/25/2002 |
| 6364572 | Aerobic landfill bioreactor The present invention includes a system of decomposing municipal solid waste (MSW) within a landfill by converting the landfill to aerobic degradation in the following manner: (1) injecting air via the landfill leachate collection system (2) injecting air... | 04/02/2002 |
| 6361249 | Negative air pressure cover A method for covering a lagoon, manure storage basin, waste water retention pond, water reservoir, open top material storage tank, stacks or piles of commodities, having a perimeter and a containment portion, wherein the method acquires the placement of a... | 03/26/2002 |
| 6322489 | Drill cuttings solidification for wetlands restoration A method of restoring wetlands is provided, by separating drill cuttings from drilling fluid, mixing the cuttings with a stabilization medium, and then filling a desired position in the marshland or wetlands with the reconstituted material.... | 11/27/2001 |
| 6321841 | Methods of sealing pipe strings in disposal wells Improved methods of completing wells penetrating subterranean corrosive fluid disposal zones are provided. The methods basically comprise the steps of preparing a pumpable, water compatible, corrosion resistant, hardenable epoxy sealing composition compri... | 11/27/2001 |
| 6287248 | Method for biosolid disposal and methane generation A method for the disposal of biosolids, such as municipal sewage waste, comprising injecting the biosolids into a subsurface injection formation. The method can include recovering methane generated from the degradation of the biosolids.... | 09/11/2001 |
| 6238138 | Method for temporary or permanent disposal of nuclear waste using multilateral and horizontal boreholes in deep islolated geologic basins A method of disposing nuclear waste in underground rock formations (18). The method includes the steps of selecting an land area having a rock formation (18) positioned therebelow of a depth able to prevent radioactive material placed therein from reachin... | 05/29/2001 |
| 6190301 | Embedding of solid carbon dioxide in sea floor sediment The invention relates to a process and vehicle for the disposal of carbon dioxide. Gaseous carbon dioxide is solidified and allowed to free fall through open water where i at least partially embeds itself in sedimentary formations. Sedimentation ensures t... | 02/20/2001 |
| 6149344 | Acid gas disposal Acid gas is liquified by compression and cooling, mixed with water under pressure and flowed into a disposal well.... | 11/21/2000 |
| 6138758 | Method and apparatus for downhole hydro-carbon separation Methods and apparatus are provided for separation of liquids of different densities in production fluid streams from underground wells. Methods and apparatus are also provided for separation of gas, oil and water in production fluids, transportation of th... | 10/31/2000 |
| 5961438 | 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... | 10/05/1999 |
| 5915885 | Method for vertical displacement of masses underneath the earth's surface A method for the displacement of mass A underneath the earth's surface and underneath a soil mass C to site B where the first step optionally treats mass A by known methods such that the composition of mass A is physically altered, mass A is then inserted... | 06/29/1999 |
| 5884715 | Method and apparatus for injecting drilling waste into a well while drilling A method for disposing of drill cuttings generated during the process of drilling oil and gas wells, by injection into the annulus of a well bore and into the earth formation, throughout the well bore operation through the use of secondary casings, inject... | 03/23/1999 |
| 5863283 | System and process for disposing of nuclear and other hazardous wastes in boreholes A system for disposing of hazardous waste, such as nuclear waste, underground which provides the drilling of a wellbore down into a level of a underground bed of salt, for example, and forming a horizontal borehole through the salt bed next, drilling a pl... | 01/26/1999 |
| 5857810 | In-situ chemical barrier and method of making A chemical barrier is formed by injecting a suspension of solid particles or colloids into the subsurface. First, a stable colloid suspension is made including a surfactant and a non-Newtonian fluid. This stable colloid suspension is characterized by coll... | 01/12/1999 |
| 5850614 | Method of disposing of nuclear waste in underground rock formations A method of disposing nuclear waste in underground rock formations (18). The method includes the steps of selecting an area of land having a rock formation (18) positioned therebelow, the rock formation (18) must be of a depth able to prevent radioactive ... | 12/15/1998 |
| 5740546 | Repository for radioactive waste-vault backfill A method of forming a repository for radioactive waste comprises locating the waste in a subterranean vault and backfilling the vault with a filling material which is water permeable and provides a substantial reservoir of available alkalinity such that a... | 04/14/1998 |
| 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 |
| 5733066 | Apparatus and method for disposal of nuclear and other hazardous wastes A hazardous waste containment vessel, and a method for its use, for safe, permanent disposal of hazardous waste in deep ocean pelagic sediment. The hazardous waste containment vessel is dropped into deep ocean water, descends through the water and penetra... | 03/31/1998 |
| 5613242 | Method and system for disposing of radioactive solid waste This invention discloses a system and method for the disposal of solid waste that contains radioactive material. Radioactive solid wastes generated as scales during oil and gas production operations are collected and placed in a central processing chamber... | 03/18/1997 |
