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| Number | Title | Issue Date |
| 8439106 | Logging system and methodology A technique facilitates the logging of hot, subterranean environments with a variety of logging tools. Logging tools with temperature limit ratings may be employed in environments that would otherwise be detrimental to operation of the logging tool due to the heat. ... | 05/14/2013 |
| 8439105 | Completion system for subsurface equipment An apparatus for creating multiple and isolated well flow paths operating at different pressures in the wellbore is described. These multiple flow paths establish a full circulation loop with the surface and a remaining isolated flow channel produces reservoir fluid... | 05/14/2013 |
| 8430157 | Thermal control system A thermal control system and method of using same are disclosed. Preferably, the thermal control system includes at least a combination data logger and control module interacting with a heat transfer medium circulation device, a heat transfer medium distribution sys... | 04/30/2013 |
| 8365815 | System for extracting and decontaminating groundwater A system for the exploitation of geothermal heat and for conveying and decontaminating ground water is disclosed. The system comprises a main pipe (20), arranged in a pit (10) of well and is subdivided into an upper and a lower part by a transverse sea... | 02/05/2013 |
| 8322411 | Axially loaded tapered heat sink mechanism The present disclosure relates to heat dissipation apparatus that may be used within a downhole tool. The heat dissipation apparatus may include one or more of a cover configured to attach to a heat generating device, a thermal conduit thermally coupled to the cover... | 12/04/2012 |
| 8267166 | Arrangement and method for heat transport An arrangement for heat transport used for thermally insulating, or cooling, one or several elements. A casing is arranged to enclose a medium having heat-storing or cooling capacity. The casing has an internal space for receiving the element or elements and the med... | 09/18/2012 |
| 8162043 | In situ method and system for extraction of oil from shale A process for retorting and extracting sub-surface hydrocarbons. The process comprises drilling an energy delivery well extending from the surface to a location proximate a bottom of the hydrocarbons. The hydrocarbons are heated from the bottom to form a retort, the... | 04/24/2012 |
| 8056618 | Flapper mounted equalizer valve for subsurface safety valves An equalizing valve for a flapper in a subsurface safety valve has a valve member disposed in a passage in the flapper that is made of a material that changes shape when subjected to a stimulus such as heat, for example. In one configuration, the valve member closes... | 11/15/2011 |
| 7938175 | Drilling, perforating and formation analysis A system and method of drilling and/or perforating uses a laser beam to remove material, such as to perforate the casing, cement and formation or drill a well bore. The system and method can further or alternately encompass material analysis that can be performed wi... | 05/10/2011 |
| 7921907 | In situ method and system for extraction of oil from shale A system and process for extracting hydrocarbons from a subterranean body of oil shale within an oil shale deposit located beneath an overburden. The system comprises an energy delivery subsystem to heat the body of oil shale and a hydrocarbon gathering subsystem fo... | 04/12/2011 |
| 7861770 | System for cyclic injection and production from a well A system is provided for injecting an injection fluid into an earth formation via a wellbore formed in the earth formation and for producing hydrocarbon fluid from the earth formation via the wellbore. The system comprises an injection conduit extending into the wel... | 01/04/2011 |
| 7806173 | Apparatus and methods to dissipate heat in a downhole tool A downhole tool configured for conveyance within a wellbore extending into a subterranean formation, the tool comprising an electronics system and a heat-dissipating apparatus. The electronics system includes a controller, a memory, and surface communicating means, ... | 10/05/2010 |
| 7717167 | Switchable power allocation in a downhole operation In some embodiments, an apparatus includes a tool to operate downhole. The tool includes a heater. The tool also includes a cooler. The tool includes a controller to control allocation of power between the heater and the cooler based on a temperature downhole, power... | 05/18/2010 |
| 7490664 | Drilling, perforating and formation analysis A system and method of drilling and/or perforating uses a laser beam to remove material, such as to perforate the casing, cement and formation or drill a well bore. The system and method can further or alternately encompass material analysis that can be performed wi... | 02/17/2009 |
| 7467658 | Down hole drilling fluid heating apparatus and method An apparatus for providing heat energy to a fluid, including a housing adapted for connection into a working string and for inserting into a borehole, a flow path for the fluid extending within the housing, a pressure drop device positioned within the flow path, and... | 12/23/2008 |
| 7455104 | Expandable elements A method and apparatus includes providing an element formed of a superplastic material to perform a predetermined downhole task. In another arrangement, a method and apparatus includes a flowable element and a deformable element that can be expanded by flowing the f... | 11/25/2008 |
| 7440283 | Thermal isolation devices and methods for heat sensitive downhole components A device for isolating a heat sensitive component includes a heat sink positioned adjacent to the heat sensitive component. The heat sink has a stepped thermal response to an applied heat. The heat sink may include two or more thermally decoupled masses. Thermal dec... | 10/21/2008 |
| 7424916 | Flameless hot oiler A flameless heating system comprising: at least one engine, each engine including a coolant for removing heat from the engine and each engine producing exhaust; a loading means for loading the engine; a heat exchange system, the heat exchange system comprising: a he... | 09/16/2008 |
| 7380605 | Energy transfer loop apparatus and method of installation A method of forming an energy transfer loop in the earth has the steps of connecting a tubing to a nose member, extending a liquid delivery pipe to the nose member, pumping a liquid through the liquid delivery pipe to the nose member, jetting the liquid from the nos... | 06/03/2008 |
| 7367399 | Loop systems and methods of using the same for conveying and distributing thermal energy into a wellbore Systems and methods are provided for treating a wellbore using a loop system to heat oil in a subterranean formation contacted by the wellbore. The loop system comprises a loop that conveys a fluid (e.g., steam) down the wellbore via a injection conduit and returns ... | 05/06/2008 |
| 7363971 | Method and apparatus for maintaining a multi-chip module at a temperature above downhole temperature Methods and systems for operating integrated circuits at temperatures higher than expected ambient temperatures. The heating may be of entire circuit boards, portions of the circuit boards (such as the components within a multiple-chip module) and/or single devices.... | 04/29/2008 |
| 7360588 | Thermal processes for subsurface formations A process may include providing heat from one or more heaters to at least a portion of a subsurface formation. Heat may transfer from one or more heaters to a part of a formation. In some embodiments, heat from the one or more heat sources may pyrolyze at least some... | 04/22/2008 |
| 7357180 | Inhibiting effects of sloughing in wellbores Certain embodiments provide a method for treating a subsurface formation. The method includes providing one or more explosives into portions of one or more wellbores selected for the explosion in the formation. The wellbores are formed in one or more zones in the fo... | 04/15/2008 |
| 7347267 | Method and apparatus for cooling flasked instrument assemblies Method and apparatus are provided to accelerate the cooling of thermally sensitive components in a chamber of a downhole instrument assembly. In accordance with the invention, a passage is formed in the chamber and a fluid is conveyed through the passage to cool the... | 03/25/2008 |
| 7343979 | Method and device for the controlled disconnection of a wireline A method and device for controlling the disconnection of a wireline (4), of the kind used in wireline operations in a wellbore, from a wireline tool (8), the wireline (4) being provided with a conductor (6) arranged to communicate signals... | 03/18/2008 |
| 7316275 | Well treating compositions containing water superabsorbent material and method of using the same A well treating composition containing a polysaccharide-based water-superabsorbent material has particularly applicability as a thermal insulating, fracturing or acid stimulation fluid. The water-superabsorbent material is capable of absorbing, at a minimum, its own... | 01/08/2008 |
| 7311151 | Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons A flowline is described for producing hydrocarbons from a subsea well that is comprised of a substantially neutrally buoyant tubular composite umbilical. The flowline may possess electrical heating apparatus within the tubular walls of the tubular composite umbilica... | 12/25/2007 |
| 7306039 | Methods of using crosslinkable compositions A thermal insulating packer fluid contains water and/or brine, a crosslinkable viscosifying polymer, a crosslinking agent and an optional set retarder. The composition is capable of inhibiting unwanted heat loss from production tubing or uncontrolled heat transfer t... | 12/11/2007 |
| 7293606 | Heat exchanging apparatus A heat exchanging apparatus including a gas fuelled flameless heater and a heat exchanger loop. The heat exchanger loop includes a heat absorbing section which is contained within the flameless heater so that the flameless heater provides a heat source for the heat ... | 11/13/2007 |
| 7284931 | Magma evacuation systems for the prevention of explosions from supervolcanoes An apparatus controls the evacuation of volcanic magma to prevent explosions. Magma evacuation is through a single evacuation tube that heats the magma flow within the tube to prevent stickiness of the magma in the tube. The heating may use small combustion chambers... | 10/23/2007 |
| 7261750 | Method for the autothermal reforming of a hydrocarbon A method for the autothermal reforming of a hydrocarbon, in particular of diesel, includes introducing a combustible mixture of the hydrocarbon to be reformed and an oxygen-containing medium into a first reaction zone of a reformer, A gas-phase reaction is ignited. ... | 08/28/2007 |
| 7225866 | In situ thermal processing of an oil shale formation using a pattern of heat sources A oil shale 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 formati... | 06/05/2007 |
| 7226243 | Load-bearing, lightweight, and compact super-insulation system A lightweight and compact super-insulation system that is also capable of supporting a high level of compressive load. The system utilizes spacers to provide structural support and utilize controlled buckling of a thin protective outer skin supported by spacers to f... | 06/05/2007 |
| 7219500 | Compressor fuel gas conditioner A compressor fuel gas conditioner for a natural gas well having a compressor which utilizes natural gas from the well as a fuel. The conditioner includes a vortex tube having an inlet to receive compressed natural gas from the compressor, a warm gas outlet for gas w... | 05/22/2007 |
| 7219734 | Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation A method for treating a hydrocarbon containing formation is described. The method may include providing heat from one or more heaters to at least a portion of the formation. At least one heater may be located in at least one wellbore in the formation. At least one w... | 05/22/2007 |
| 7216831 | Shape changing structure In one preferred embodiment, a structure is provided that includes a body having a first wall and a second wall. At least one appending component extends from an end of the body and includes a first skin and second skin. The structure additionally includes at least ... | 05/15/2007 |
| 7207389 | Hybrid coiled tubing/fluid pumping unit Method and apparatus for servicing of a bore hole in the earth, comprising a first sub-assembly adapted for the insertion and removal of a continuous length of coiled tubing into and from the bore hole, a second sub-assembly adapted for the vaporization of liquified... | 04/24/2007 |
| 7185512 | Installation for the very long storage of products that emit a high heat flux An installation for very long term storage of products emitting a high thermal flux. The installation comprises a container (14), in which the products to be stored are placed, and an evaporator (22) surrounding the container, to evacuate the heat thro... | 03/06/2007 |
| 7175366 | Device, system, and method for remediation of contaminated soil A system, method, and devices for remediating soil of an area of land. The devices are partially inserted into the soil within the area. The devices have vent holes fluidically coupling each device to the soil. A hot fluid is circulated through the devices to heat t... | 02/13/2007 |
| 7172638 | Staged air autothermal reformer for improved startup and operation An autothermal reformer according to the principles of the present invention comprises a first stage that selectively receives a fuel flow, a first oxidant flow, and a steam flow. The first stage has a first portion of a catalyst bed. The fluids within the first sta... | 02/06/2007 |
