Electric Current Or Electrical Wave Energy Through Earth For Treating Patents (Class 166/248)
  • Patent number: 10876385
    Abstract: A method for recovering at least one of oil and gas from a geological formation includes injecting water into a wellbore, where the wellbore has a depth that is sufficient for introducing a hydrostatic pressure that imparts supercritical pressure to water present at a depth greater than or equal to the depth. A heating element is inserted into the wellbore to a heating element depth that is greater than or equal to the depth. Power is transmitted to the heating element causing the heating element to heat water to a temperature sufficient to form supercritical water. The heating element includes a microwave antenna and a shell encapsulating the microwave antenna formed from a material that is capable of heating upon exposure to microwave radiation.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: December 29, 2020
    Assignee: Saudi Arabian Oil Company
    Inventor: Abdulrahman Abdulaziz Al-Mulhem
  • Patent number: 10865629
    Abstract: Systems and methods are provided for maintaining the performance and operational stability of an RF (radio frequency) antenna that is positioned in a hydrocarbon-bearing formation, for heating the formation using electromagnetic energy in the radio frequency range. Contaminants such as water or brine, metallic particulates and ionic or organic materials frequently occur in a wellbore being prepared for RF heating, or in an RF antenna installed in the wellbore. Prior to applying RF electrical energy to the formation, the antenna is decontaminated by circulating a preconditioning fluid through the antenna and recovering a spent fluid for treating and recycle. Decontamination is continued while the spent fluid from the antenna includes, but not limited to, water, metallic particles, ionic species, organic compounds contaminants, etc. An operational power level of radio frequency electrical energy is then applied to the decontaminated antenna for providing thermal energy to the hydrocarbon-bearing formation.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 15, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Gunther H. Dieckmann, Cesar Ovalles
  • Patent number: 10865628
    Abstract: Systems and methods are provided for maintaining the performance and operational stability of an RF (radio frequency) antenna that is positioned in a hydrocarbon-bearing formation, for heating the formation using electromagnetic energy in the radio frequency range. Contaminants such as water or brine, metallic particulates and ionic or organic materials frequently occur in a wellbore being prepared for RF heating, or in an RF antenna installed in the wellbore. Prior to applying RF electrical energy to the formation, the antenna is decontaminated by circulating a preconditioning fluid through the antenna and recovering a spent fluid for treating and recycle. Decontamination is continued while the spent fluid from the antenna includes, but not limited to, water, metallic particles, ionic species, organic compounds contaminants, etc. An operational power level of radio frequency electrical energy is then applied to the decontaminated antenna for providing thermal energy to the hydrocarbon-bearing formation.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: December 15, 2020
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Gunther H. Dieckmann, Cesar Ovalles
  • Patent number: 10858910
    Abstract: A high-power microwave borehole fracturing device for an engineering rock mass includes a high-power microwave generator, a high-power microwave coaxial heater, a high-power low-loss microwave coaxial transmission line, and a microwave power adaptive regulation and control system. The high-power microwave generator includes a continuous wave magnetron, a permanent magnet, a waveguide excitation chamber, a coaxial circulator, a coaxial matching load, a coaxial coupling converter, a waveguide coaxial converter, and an output waveguide. The high-power microwave coaxial heater includes a microwave transmission inner conductor, a microwave transmission outer conductor, a microwave input connector, a microwave short circuit cap, and a conductor supporting cylinder. The high-power low-loss microwave coaxial transmission line includes an input end coaxial line, middle section coaxial lines, and an output end coaxial line.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: December 8, 2020
    Assignee: NORTHEASTERN UNIVERSITY
    Inventors: Xiating Feng, Gaoming Lu, Yuanhui Li, Xiwei Zhang, Jianhua Wen, Tianyang Tong, Yanhua Gong
  • Patent number: 10844673
    Abstract: Examples of fiber reinforced and powered coil tubing include a hollow fiber reinforced composite coiled tubing with a tubing wall having an inner surface, an outer surface and a wall thickness. The inner surface is formed to prevent absorption of fluids flowed through the coiled tubing to the tubing wall. The tubing can connect a power source at a surface of a wellbore to downhole equipment positioned within the wellbore. An electrical power conductor is embedded in the tubing wall. The conductor can transfer power from the power source to the downhole equipment. The tubing can be used to lower, install and remove downhole equipment into the wellbore without a work-over rig. The downhole equipment can be operated by transmitted power through the electrical power conductor.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: November 24, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Rafael Adolfo Lastra Melo, Jinjiang Xiao, Brian A. Roth
  • Patent number: 10830017
    Abstract: Methods, apparatus and systems for in-situ heating fluids with electromagnetic radiation are provided. An example tool includes a housing operable to receive a fluid flowed through a flow line and a heater positioned within the housing. The heater includes a number of tubular members configured to receive portions of the fluid and an electromagnetic heating assembly positioned around the tubular members and configured to generate electromagnetic radiation transmitted to heat the tubular members. The heated tubular members can heat the portions of the fluid to break emulsion in the fluid. Upstream the heater, the tool can include a homogenizer operable to mix the fluid to obtain a homogenous fluid and a stabilizer operable to stabilize the fluid to obtain a linear flow. Downstream the heater, the tool can include a separator operable to separate lighter components from heavier components in the fluid after the emulsion breakage.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: November 10, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Sameeh Issa Batarseh, Mohamed Nabil Noui-Mehidi
  • Patent number: 10781360
    Abstract: Provided in this disclosure, in part, are methods, compositions, and systems for degrading organic matter, such as kerogen, in a subterranean formation. Further, these methods, compositions, and systems allow for increased hydraulic fracturing efficiencies in subterranean formations, such as unconventional rock reservoirs. Also provided in this disclosure is a method of treating kerogen in a subterranean formation including placing in the subterranean formation a composition that includes a first oxidizer including a persulfate and a second oxidizer including a bromate.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: September 22, 2020
    Assignee: Saudi Arabian Oil Company
    Inventors: Katherine Leigh Hull, Ghaithan A. Al-Muntasheri, Younane N. Abousleiman, David Jacobi
  • Patent number: 10767459
    Abstract: A hydrocarbon resource recovery system is for hydrocarbon recovery in a subterranean formation. The hydrocarbon resource recovery system may include an RF antenna within the subterranean formation for hydrocarbon resource recovery, an RF source aboveground, a coaxial RF transmission line coupled between the RF antenna and the RF source and having an aboveground portion, a dielectric fluid pressure source, and pressure members joined together in end-to-end relation to define a pressure housing coupled to the dielectric fluid pressure source and surrounding the aboveground portion of the coaxial RF transmission line. The pressure members may include a straight tubular pressure member, and an elbow pressure member coupled thereto.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 8, 2020
    Assignee: EAGLE TECHNOLOGY, LLC
    Inventors: Brian N. Wright, Raymond C. Hewit
  • Patent number: 10760392
    Abstract: An apparatus and method for electromagnetic heating of a hydrocarbon formation. The method involves providing electrical power to at least one electromagnetic wave generator for generating high frequency alternating current; using the electromagnetic wave generator to generate high frequency alternating current; using at least one pipe to define at least one of at least two transmission line conductors; coupling the transmission line conductors to the electromagnetic wave generator; and applying the high frequency alternating current to excite the transmission line conductors. The excitation of the transmission line conductors can propagate an electromagnetic wave within the hydrocarbon formation. In some embodiments, the method further comprises determining that a hydrocarbon formation between the transmission line conductors is at least substantially desiccated; and applying a radiofrequency electromagnetic current to excite the transmission line conductors.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: September 1, 2020
    Assignee: Acceleware Ltd.
    Inventors: Michal M. Okoniewski, Damir Pasalic, Pedro Vaca, Geoff Clark
  • Patent number: 10751770
    Abstract: A contaminated medium (such as soil and/or groundwater) contaminated with petrogenic and/or other organic contaminants such as petroleum hydrocarbons, light non-aqueous phase liquids (NAPLs), dense non-aqueous phase liquids (DNAPLs), persistent organic pollutants (i.e. sulfolane), chlorinated compounds, and volatile organic compounds, can be mixed with enhanced stimulators and be thermally remediated. The enhanced stimulators are heat induced to undergo exothermic reactions, which initiate a series of in-situ chemical reactions to such as to produce hydrogen gas. The hydrogen gas causes hydrocracking of heavy hydrocarbons to produce light hydrocarbons which can be recovered such as for future use.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: August 25, 2020
    Assignee: Trium Environmental Inc.
    Inventors: Simon Park, Byong Jun Min, Jevins Lee Waddell, Seonghwan Kim
  • Patent number: 10722811
    Abstract: A method is for thermal separation of a non-polar organic compound from a material by steam distillation, where microwave radiation provides energy to the material, and where a susceptor comprising an organic substance with an electric dipole characteristic is added to and mixed with the material prior to the steam distillation, and the susceptor contributes with vapor to the steam distillation. Use of the susceptor in a steam distillation process is described as well.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: July 28, 2020
    Assignee: Norwegian Technology AS
    Inventor: Stig Ovar Keller
  • Patent number: 10698391
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for communicating between an operational asset and a backend network that include the actions of receiving first data from an operational asset through a first communication interface that is configured to communicate with an operational asset, and where the first data is formatted according to a first data format that is specific to the operational asset. Processing the first data according to an asset template to generate second data, where the second data includes the first data and being formatted according to a second data format that is specific to the backend network. Causing the second data to be transmitted to the backend network by a second communication interface that is configured to communicate with a backend network.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 30, 2020
    Assignee: Wellaware Holdings, Inc.
    Inventors: David Figoli, Matthew Harrison
  • Patent number: 10697280
    Abstract: A process and system for in situ electrical heating of a hydrocarbon bearing formation includes a tool capable of being lowered down a well casing. The tool has a plurality of metal arms capable of extending radially within a secondary well casing. Each of the metal arms includes an injection electrode, a bucking electrode, and first and second monitoring electrodes. An insulating member is mounted to each metal arm. The insulating member is arranged and designed to make contact with the casing and prevent the metal arm from directly contacting the casing. A switch is provided that is capable of being electrically connected to the plurality of electrodes of one metal arm at a time. A logging cable having a plurality of wires connected at one end to the switch and a second end to instrumentation at the ground surface.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: June 30, 2020
    Inventor: Rama Rau Yelundur
  • Patent number: 10675664
    Abstract: A method and system to remediate soil containing PFAS compounds and organic carbon. Total organic carbon is reduced by heating the soil at a sufficient temperature and for a sufficient duration to reduce surface effects between the PFAS compounds and the organic carbon to permit evaporation and treatment of the PFAS compounds from the soil.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: June 9, 2020
    Assignee: TRS Group, Inc.
    Inventors: Daniel Oberle, Emily Crownover
  • Patent number: 10662747
    Abstract: The present invention relates to a device for generating a disturbance in the differential mode of propagation of an RF signal transmitted along a coaxial transmission line.
    Type: Grant
    Filed: August 10, 2015
    Date of Patent: May 26, 2020
    Assignee: Eni S.P.A.
    Inventors: Domenico Di Renzo, Alberto Maliardi, Giovanni Galgani
  • Patent number: 10628742
    Abstract: The present invention discloses a micro-grid distributed energy resource bidding method based on artificial immunity including the following steps: processing the collected information by a bidding unit agent to form artificial immune antigen of quotation environmental; performing solving based on artificial immune algorithm to obtain antibody meeting the interest of a distributed energy resource; and decoding the antibody to obtain a bidding scheme of the distributed energy resource. The present invention utilizes artificial immune intelligent algorithm with strong ability of information processing and self-adaption, thus solving the problem of uncontrollable bidding under complicated environment. Uncertainty problem resulted by the intermittent power supply is overcomed by the capability of self-adaption and defect tolerance of artificial immunity during bidding process. In addition, the coordination of entire micro-grid MAS is improves by coordinated evolution of artificial immunity.
    Type: Grant
    Filed: April 26, 2015
    Date of Patent: April 21, 2020
    Assignee: Tianjin University
    Inventor: Xiangyu Kong
  • Patent number: 10577905
    Abstract: A hydrocarbon resource recovery system may include an RF source, and an RF antenna assembly coupled to the RF source and within a wellbore in a subterranean formation for hydrocarbon resource recovery. The RF antenna assembly may include first and second tubular conductors, a dielectric isolator coupled between the first and second tubular conductors, an RF transmission line having an inner conductor and an outer conductor extending within the first tubular conductor, the outer conductor being coupled to the first tubular conductor, and a feed structure coupled to the second tubular conductor. The inner conductor may have a distal end being slidable within the outer conductor and cooperating with the feed structure to define a latching arrangement having a latching threshold lower than an unlatching threshold.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 3, 2020
    Assignee: EAGLE TECHNOLOGY, LLC
    Inventors: Brian N. Wright, Raymond C. Hewit
  • Patent number: 10577906
    Abstract: A hydrocarbon resource recovery system may include an RF source, and an RF antenna assembly coupled to the RF source and within a wellbore in a subterranean formation for hydrocarbon resource recovery. The RF antenna assembly may include first and second tubular conductors, a dielectric isolator, and first and second electrical contact sleeves respectively coupled between the first and second tubular conductors and the dielectric isolator so that the first and second tubular conductors define a dipole antenna. The RF antenna assembly may include a thermal expansion accommodation device configured to provide a sliding arrangement between the second tubular conductor and the second electrical contact sleeve when a compressive force therebetween exceeds a threshold.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 3, 2020
    Assignee: EAGLE TECHNOLOGY, LLC
    Inventors: Brian N. Wright, Raymond C. Hewit, Angelo Bersani, John M. Wassman
  • Patent number: 10563492
    Abstract: A method of electrically enhancing oil-recovery from an underground rock formation comprising an oil-bearing reservoir is herein detailed. According to the method a controlled electrical charging potential between two or more electrically conductive elements is imposed for a charging time sufficient to cause a capacitive charging of the rock formation, the charging being followed by lowering or maintaining the charging potential below 40 mV per running meter between the conductive elements; during oil withdrawal. Further, a capacitor charging pump having feedback means for use with the method is detailed.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: February 18, 2020
    Assignee: EOR Technologies ApS
    Inventors: Bjørn Stokholm, Frank Hanisch
  • Patent number: 10472894
    Abstract: A downhole drilling system is disclosed. The downhole drilling system may include a pulse-generating circuit electrically coupled to a power source to provide power at a frequency, the pulse-generating circuit comprising an input stage tank circuit electrically coupled to the power source, the input stage tank circuit configured to have a resonant frequency approximately equal to the frequency; a series tank circuit electromagnetically coupled to the input stage tank circuit, the series tank circuit configured to have a resonant frequency approximately equal to the frequency; and an output stage tank circuit electromagnetically coupled to the series tank circuit, the output stage tank circuit configured to have a resonant frequency approximately equal to the frequency; and a drill bit including a first electrode and a second electrode electrically coupled to the output stage tank circuit to receive an electric pulse from the pulse-generating circuit.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: November 12, 2019
    Assignees: Halliburton Energy Services, Inc., Chevron U.S.A. Inc., SDG LLC
    Inventor: Joshua A. Gilbrech
  • Patent number: 10458220
    Abstract: Methods and systems for facilitating extraction of subterranean hydrocarbons from a geologic structure. The present methods include causing corrosion of a base metal within a geologic structure to produce a gaseous product to increase pressure and form fractures in the geologic structure. Some embodiments of the present methods include injecting a fluid composition comprising the base metal into a wellbore (e.g., into a geologic structure via the wellbore).
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: October 29, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERISTY
    Inventors: Elise Switzer, Cody Friesen, Heath Lorzel
  • Patent number: 10457853
    Abstract: Methods and systems for facilitating extraction of subterranean hydrocarbons from a geologic structure. The present methods include causing corrosion of a base metal within a geologic structure to produce a gaseous product to increase pressure and form fractures in the geologic structure. Some embodiments of the present methods include injecting a fluid composition comprising the base metal into a wellbore (e.g., into a geologic structure via the wellbore).
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: October 29, 2019
    Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF ARIZONA STATE UNIVERSITY
    Inventors: Cody Friesen, Jason Rugolo
  • Patent number: 10443367
    Abstract: The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole: directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, wherein irradiating the rocks elevates pore-water pressure in the rocks causing fracturing of the rocks.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: October 15, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Jinhong Chen, Daniel T. Georgi, Hui-Hai Liu, Lorne Arthur Davis, Jr.
  • Patent number: 10415338
    Abstract: A method to control the shape of an opening in a formation including the steps of emitting a laser beam from a fiber optic cable into a direction unit, focusing the laser beam in the focusing lens to produce a focused laser, collimating the focused beam in the collimating lens to produce a directed beam, directing the directed beam onto a motorized master, where the compact scanner further comprises a motorized slave, wherein the motorized master comprises a master mirror and a master motor, wherein the motorized slave comprises a slave mirror and a slave motor, operating the motorized master and the motorized slave to produce a controlled beam, where the controlled beam moves in a movement pattern, introducing the controlled beam to a laser head, sublimating the formation to produce the opening, and vacuuming the dust and vapor with the vacuum nozzle.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: September 17, 2019
    Assignee: Saudi Arabian Oil Company
    Inventor: Sameeh Issa Batarseh
  • Patent number: 10372116
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium for communicating between an operational asset and a backend network that include the actions of receiving first data from an operational asset through a first communication interface that is configured to communicate with an operational asset, and where the first data is formatted according to a first data format that is specific to the operational asset. Processing the first data according to an asset template to generate second data, where the second data includes the first data and being formatted according to a second data format that is specific to the backend network. Causing the second data to be transmitted to the backend network by a second communication interface that is configured to communicate with a backend network.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: August 6, 2019
    Assignee: WellAware Holdings, Inc.
    Inventors: David Figoli, Matthew Harrison
  • Patent number: 10370949
    Abstract: The present disclosure relates to a particularly effective well configuration that can be used for SAGD and other steam based oil recovery methods. Fishbone multilateral wells are combined with SAGD, effectively expanding steam coverage, but the fishbones are preheated to mitigate plugging problems, with e.g., resistive heating, EM heating or chemical heating.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: August 6, 2019
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Sergei A. Filatyev, Pradeep Ananth Govind, Thomas J. Wheeler
  • Patent number: 10360282
    Abstract: A method and system for evaluation of a hydrocarbon-bearing shale formation employs a data processing system that defines a response model that relates first data representing measured petrophysical properties of the shale formation at a given location to second data representing volume fractions for a particular set of formation components at the given location. The first data includes hydrogen index at the given location, and the particular set of formation components of the second data include a number of mineral components and a number of hydrocarbon-bearing components. The hydrocarbon-bearing components include at least one kerogen component. A computation solver processes the response model along with the first data to solve for the second data. The solved second data representing the volume fraction of the at least one kerogen component is processed to derive at least one ratio that is indicative of kerogen maturity at the given location.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: July 23, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John Rasmus, Richard E. Lewis, David Handwerger, Jack LaVigne
  • Patent number: 10358901
    Abstract: A carbon dioxide to hydrocarbon conversion device and method are disclosed. A partially produced hydrocarbon subterranean reservoir comprising residual hydrocarbons is provided. A carbon dioxide source is provided, positioned on a surface proximate to the reservoir. A surface mounted high-pressure fluid injector system connecting the carbon dioxide source and the reservoir is provided. A backflow preventer is disposed in-line between the injector system and the reservoir. The injector system injects a catalyst-free feed stream, comprising carbon dioxide, into the reservoir up to an operating pressure. The backflow preventer maintains the operating pressure in the reservoir and sequesters the feed stream in the reservoir. The sequestered carbon dioxide reacts with water and at least a portion of the residual hydrocarbons over a time period to produce additional hydrocarbons. The water is present in the reservoir, provided by the feed stream, or both.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 23, 2019
    Assignee: Sustainable Energy Solutions, LLC
    Inventors: Larry Baxter, Nathan A. Davis
  • Patent number: 10344579
    Abstract: There is provided a process for producing hydrocarbons from a reservoir. The process includes within the hydrocarbon reservoir, electrically heating a liquid heating fluid such that the liquid heating fluid is evaporated to produce a gaseous heating fluid, heating hydrocarbon material with the gaseous heating fluid such that the heated hydrocarbon material is mobilized and such that the gaseous heating fluid is condensed to produce a condensed heating fluid, and electrically heating at least a fraction of the condensed heating fluid such that the at least a condensed heating fluid fraction is re-evaporated, and while the evaporation, the condensing, and the re-evaporation are being effected, producing a produced fluid including at least the mobilized hydrocarbon material.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: July 9, 2019
    Assignee: CNOOC PETROLEUM NORTH AMERICA ULC
    Inventors: Thomas Harding, Richard Kelso Kerr, Ann Chen Howe
  • Patent number: 10230182
    Abstract: An electrical grounding system can include an electrically conductive column configured for communication with a fault current source and a carbon fiber layer in conductive relationship with at least a portion of the electrically conductive column. The system can also include a salt replenishment tube configured for attachment to a ground member, the salt replenishment tube having a tube wall defining a weep hole. The system can further include electrolytic fill disposed within a column chamber at least partially-defined by the electrically-conductive column, the electrolytic fill comprising a material configured to conduct at least a portion of any fault current received by the ground member radially outwardly from the ground member. The system can further include a bus bar comprising electrically-interconnected bus bar connectors, wherein the bus bar electrically communicates with the electrically conductive column and with the fault current source.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: March 12, 2019
    Assignee: GLxT Holdings, LLC
    Inventors: Thomas Evan LaBarge, Gordon Wysong
  • Patent number: 10221666
    Abstract: An induction device and method for introducing an inductor loop into a rock formation to heating an oil reservoir in the rock formation to extract oil extraction, wherein a first inductor bore is chilled for introducing a first inductor arm, a second inductor bore is drilled for introducing a second inductor arm, at least one intersecting bore is drilled to create a first area of intersection with the first inductor bore and a second area of intersection with the second inductor bore, the first inductor arm is introduced into the first inductor bore and the second inductor arm is introduced into the second inductor bore, and at least one connecting arm is introduced into the intersecting bore for electrically conductive connection to the two inductor arms in the two areas of intersection so as to form the inductor loop.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: March 5, 2019
    Assignee: Siemens Aktiengesellschaft
    Inventors: Stefan Blendinger, Vladimir Danov, Dirk Diehl, Andreas Koch
  • Patent number: 10212795
    Abstract: An electric barrier to limit crossing of a border or perimeter. It consists of rows of vertical electrodes installed underground or above ground. It has two modes of operation. In an RF heating mode a generator powers electric fields to heat the ground in a pattern around the fence. A temperature may be reached which makes human occupation of tunnels untenable. Humans may also be subjected to RF radiation effects, especially if the frequency is tuned to a resonant frequency of tunnel cavities. Detection of a resonant frequency by suitable instrumentation may also indicate the presence of tunnels. In another mode occupants of a tunnel may be subjected to shock from an electric pulse, without heating, depending on small amounts of moisture to transmit the pulse through soil to the tunnel.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: February 19, 2019
    Inventors: Arthur Handelman, Richard H. Snow, Jack E. Bridges
  • Patent number: 10180054
    Abstract: The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole: directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, wherein irradiating the rocks elevates pore-water pressure in the rocks causing fracturing of the rocks.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: January 15, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Jinhong Chen, Daniel T. Georgi, Hui-Hai Liu, Lorne Arthur Davis, Jr.
  • Patent number: 10113403
    Abstract: A plurality of heaters is provided where each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. Each of the plurality of fuel cells also includes a conductor electrically connecting the fuel cell stack assembly to an electronic controller which monitors and controls electric current produced by the fuel cell stack assembly. The conductor of one of the plurality of heaters allows electric current produced by the fuel cell stack assembly of the one of the plurality of heaters to be monitored and controlled by the electronic controller independently of the fuel cell stack assembly of at least another one of the plurality of heaters.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: October 30, 2018
    Assignee: DELPHI TECHNOLOGIES, INC.
    Inventor: Karl J. Haltiner, Jr.
  • Patent number: 10087731
    Abstract: A method for enhanced recovery of hydrocarbonaceous fluids, the method including the steps of creating a plurality of wellbores in a subterranean formation, whereby one or more of the plurality of wellbores may include a directionally drilled portion with solution disposed therein, and an electrode operatively connected with a power source. Other steps include generating an electrical field within the subterranean formation, thereby causing an electrochemical reaction to produce a gas from the solution, such that the gas mixes with hydrocarbonaceous fluids present in the formation and increases pressure within at least one of the plurality of wellbores, the subterranean formation, and combinations thereof, thereby enhancing recovery of the hydrocarbonaceous fluid.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: October 2, 2018
    Inventor: Paul Grimes
  • Patent number: 9988888
    Abstract: A device is proposed for fracturing a geological hydrocarbon reservoir, including two packers defining a confined space therebetween in a well drilled in the reservoir, an apparatus for regulating the temperature of a fluid in the confined space, a pair of two electrodes arranged in the confined space, and an electric circuit to generate an electric arc between the two electrodes. The circuit includes at least one voltage source connected to the electrodes and an inductor coil between the voltage source and one of the two electrodes. This allows improved fracturing of the reservoir.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: June 5, 2018
    Assignee: Total SA
    Inventors: Franck Rey-Bethbeder, Justin Martin, Thierry Reess, Antoine Sylvestre De Ferron
  • Patent number: 9970246
    Abstract: A method of triggering heating within a subterranean formation, that includes introducting a wellbore fluid containing a dispersed carbon nanomaterial into a wellbore through the subterranean formation; lowering a microwave or ultraviolet radiation source into the wellbore; and irradiating the wellbore with microwave or ultraviolet radiation, thereby increasing the temperature of the wellbore fluid and/or wellbore is disclosed.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: May 15, 2018
    Assignee: M-I L.L.C.
    Inventors: Brandi Katherine Price Hoelscher, Steven Philip Young, James Friedheim
  • Patent number: 9963959
    Abstract: A device for heating a hydrocarbon resource in a subterranean formation having at least one pair of laterally extending upper and lower wellbores therein may include a radio frequency (RF) source. The device may also include an upper wellbore RF radiator to be positioned in the laterally extending upper wellbore and including a plurality of first terminals. The device may further include a lower wellbore RF radiator to be positioned in the laterally extending lower wellbore and comprising a plurality of second terminals. The device may also include an interconnection arrangement configured to couple the RF source and the first and second terminals so that at least one of the upper and lower wellbore RF radiators heat the hydrocarbon resource in the subterranean formation.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: May 8, 2018
    Assignee: HARRIS CORPORATION
    Inventor: Francis Eugene Parsche
  • Patent number: 9951597
    Abstract: A method for permeability improvement for a downhole coal seam by directional fracturing with pulsed detonation waves, which is applicable to gas control in coal seam areas with high gas concentration and low air permeability. The permeability improvement method is as follows: first, drilling a pulsed detonation borehole and pulsed detonation guide boreholes from a coal roadway to a coal seam respectively; then, pushing a positive electrode connected to a positive output side of an explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation borehole and pushing a negative electrode connected to a negative output side of the explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation guide borehole; connecting the pulsed detonation borehole and the pulsed detonation guide boreholes to an extraction pipeline for gas extraction, after electrical pulsed detonation fracturing for the coal seam is carried out.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 24, 2018
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Fazhi Yan, Chuanjie Zhu, Chang Guo, Quanle Zou, Ting Liu, Yidu Hong, Hao Yao
  • Patent number: 9896919
    Abstract: The present disclosure describes methods and systems for fracturing geological formations in a hydrocarbon reservoir. One method includes forming a borehole in a hydrocarbon reservoir from a surface of the hydrocarbon reservoir extending downward into the hydrocarbon reservoir; transmitting an electromagnetic (EM) wave through the borehole: directing at least a portion of the EM wave to rocks at a location below the surface in the hydrocarbon reservoir; and fracturing the rocks at the location below the surface in the hydrocarbon reservoir by irradiating the rocks around the borehole using at least the portion of the EM wave, wherein irradiating the rocks elevates pore-water pressure in the rocks causing fracturing of the rocks.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: February 20, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Jinhong Chen, Daniel T. Georgi, Hui-Hai Liu, Lorne Arthur Davis, Jr.
  • Patent number: 9896917
    Abstract: The oil production intensification method includes injecting the reagent into the reservoir and treating the bottom zone of the well with high voltage pulse discharges with an electric discharge device continuously traveling from bottom to top in the atmosphere of such reagent. The number of pulses of such high voltage pulse discharges is set subject to the real porosity of the reservoir and the empirical dependence of the number of pulses of high voltage pulse discharges per meter of the reservoir and porosity of rocks pre-estimated with the core material. After the electric discharge device stops traveling up, the treatment with high voltage pulse discharges also stops, and the well is pressurized until the pressure stabilizes in it. Then, the bottom hole area of the well is further treated with high voltage pulses as the electric discharge device travels from top to bottom. Whereby an intensified oil production is realized, from 2 to 20 times more oil may be extracted.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 20, 2018
    Inventors: Olga Nikolaevna Sizonenko, Alexander Ivanovich Vovchenko, Igor Semenovich Alexandrov
  • Patent number: 9890627
    Abstract: Controlled fracturing in geologic formations is carried out in a method employing a combination of alternating and impulsive current waveforms, applied in succession to achieve extensive fracturing and disintegration of rock materials for liquid and gas recovery. In a pre-conditioning step, high voltage discharges and optionally with highly ionizable gas injections are applied to a system of borehole electrodes, causing the formation to fracture with disintegration in multiple directions but confined between the locations of electrode pairs of opposite polarity. After pre-conditioning, intense current waveform of pulse energy is then applied to the system of borehole electrodes to create waves of ionization or shock waves with bubbles of heated gas that propagate inside and outside the high conductivity channels, resulting in rock disintegration with attendant large scale multiple fracturing.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: February 13, 2018
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Raymond Stanley Kasevich, Jeb Xiaobing Rong, James Preston Koffer, Mark Dean Looney, Margaretha Catharina Maria Rijken
  • Patent number: 9890613
    Abstract: Systems and methods for removing deposits from a component of a formation fluid and/or gas transportation tubing string. The disclosed systems and methods generate at least one shock wave into a shock wave transmitting liquid into the transportation tubing string nearby to the component and propagate the at least one shock wave toward the component for removing deposits from the component.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: February 13, 2018
    Assignee: Blue Spark Energy Inc.
    Inventors: Todd Parker, Shawn Carroll, Dan Skibinski
  • Patent number: 9863227
    Abstract: A device for heating hydrocarbon resources in a subterranean formation having a wellbore therein may include a tubular radio frequency (RF) antenna within the wellbore, and a tool slidably positioned within the tubular RF antenna. The tool may include an RF transmission line and at least one RF contact coupled to a distal end of the RF transmission line and biased in contact with the tubular RF antenna. The tool may also include an anchoring device configured to selectively anchor the RF transmission line and the at least one RF contact within the tubular RF antenna.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: January 9, 2018
    Assignee: HARRIS CORPORATION
    Inventors: Brian N. Wright, Murray Hann, Raymond C. Hewit, Zachary Linc Alexander Linkewich, Alan Watt
  • Patent number: 9840898
    Abstract: Controlled fracturing in geologic formations is carried out by a system for generating fractures. The system comprises: a plurality of electrodes for placing in boreholes in a formation with one electrode per borehole, for the plurality of electrodes to define a fracture pattern for the geologic formation; a first electrical system for delivering a sufficient amount of energy to the electrodes to generate a conductive channel between the pair of electrodes with the conductivity in the channel has a ratio of final to initial channel conductivity of 10:1 to 50,000:1, wherein the sufficient amount of energy is selected from electromagnetic conduction, radiant energy and combinations thereof; and a second electrical system for generating electrical impulses with a voltage output ranging from 100-2000 kV, with the pulses having a rise time ranging from 0.05-500 microseconds and a half-value time of 50-5000 microseconds.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: December 12, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Raymond Stanley Kasevich, Jeb Xiaobing Rong, James Preston Koffer, Mark Dean Looney, Margaretha Catharina Maria Rijken
  • Patent number: 9810041
    Abstract: The invention concerns a method for cleaning control particles in a wellbore of a subterranean formation to improve the recovery of formation fluids and/or gases, said wellbore comprising a wall defining a borehole, at least one control equipment arranged into said borehole and a plurality of control particles arranged between said control equipment and said wall, said method comprising the steps of generating at least one shock wave nearby said control equipment and propagating said at least one shock wave through said control equipment toward said control particles for cleaning said control particles.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: November 7, 2017
    Assignee: Blue Spark Energy Inc.
    Inventors: Todd Parker, Shawn Carroll, Dan Skibinski
  • Patent number: 9784084
    Abstract: A method for heating oil shale underground in situ. Shale oil and fuel gas can be obtained from an underground oil shale seam in situ, and the fuel gas can also be obtained from an underground coal seam in situ. Wells are drilled downwardly reaching an operation region of an underground oil shale ore bed. Electricity for partial discharge of the ore bed is conducted into electrodes, and a plasma channel is formed in the ore bed and subjected to breakdown by the electricity; after the resistance of each of two electrode regions is lowered, the two electrodes are used for conducting currents into the plasma channel in the oil shale ore bed; the oil shale ore bed is heated under the resistance heating function of the plasma channel; and released heat is used for realizing thermal cracking and gasification of fixed organic carbon in the oil shale ore bed.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: October 10, 2017
    Assignee: Jilin University
    Inventors: Youhong Sun, Lopatin Vladimir, Wei Han, Martemyannov Sergey, Qiang Li, Bukharkin Andrey, Yang Yang, Zuoan Yuan, Baochang Liu, Wei Guo, Ke Gao
  • Patent number: 9739131
    Abstract: The invention concerns a method for stimulating a treatment zone near a wellbore area in fluid connection with at least one porous zone of a subterranean formation, said method comprising the steps of generating (S1a) at least one electrical discharge in said wellbore at a distance from the at least one porous zone in order to propagate at least one shock wave adapted to fracture said treatment zone and introducing (S2a) a chemical agent within said treatment zone for increasing the permeability of said treatment zone.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: August 22, 2017
    Assignee: Blue Spark Energy Inc.
    Inventors: Todd Parker, Shawn Carroll, Dan Skibinski
  • Patent number: 9702236
    Abstract: A method for recovering subsurface hydrocarbons, including heavy oil or bitumen, wherein a downhole steam injection phase is followed by application of heat to the near-wellbore region of the reservoir, heat being applied only during periods without steam injection. The heat application can be achieved by any number of techniques including electrical heaters, radio frequency waves, electromagnetic waves and microwaves. Numerous advantages are possible by withholding heat application during the steam injection phase. While preferred for use with cyclic steam stimulation recovery techniques, the method can be applied with other steam-based recovery techniques.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: July 11, 2017
    Assignee: Husky Oil Operations Limited
    Inventor: Samuel Ojagbohunmi
  • Patent number: 9657559
    Abstract: Methods and systems for causing reaction driven cracking in subsurface rock formations are disclosed. In some embodiments, the methods include the following: drilling one or more holes in a substantially porous subsurface rock formation, the one or more holes in fluid communication with pores in the subsurface rock formation; injecting in the pores via at least one of the holes one or more fluids, wherein the one or more fluids include a gas; and chemically reacting the one or more fluids within the pores thereby causing cracking in the substantially porous subsurface rock formation.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: May 23, 2017
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Peter Kelemen, Heather Savage, Theodore A. Koczynski