Fuel Supply Or Hot Billet In Well Patents (Class 166/58)
  • Publication number: 20150136390
    Abstract: Methods to extract oil from underground reservoirs are disclosed comprising pumping a gas comprising oxygen into the reservoir, causing combustion, and using the heat and pressure generated by the combustion to drive the oil through a well pipe to the surface. Systems for extracting oil from underground reservoirs are also disclosed comprising a gas compression system operable to pump oxygen from an oxygen source into the underground reservoir. The system has a supply pipe connected to the source of oxygen, a delivery pipe connected to the underground reservoir, a pump capable of pumping a liquid, a first tank with a first pipe and a second pipe, a second tank with a third and a fourth pipe and two pipe switchers operable to switch connections such that the tanks are swapped from a position between the supply pipe and the pump inlet and a position between the pump outlet and the delivery pipe.
    Type: Application
    Filed: January 23, 2015
    Publication date: May 21, 2015
    Inventor: Jasim Saleh Al-Azzawi
  • Publication number: 20150101813
    Abstract: Disclosed herein a system comprising a casing; the casing being disposed in a borehole; a liner; the liner being disposed in the casing and being concentric with the casing; and a layer of material disposed between the liner and the casing; where the layer of material forms a first bond with the liner and a second bond with the casing thereby enabling hanging the liner from the casing. Disclosed herein too is a method comprising disposing in a borehole a system comprising a casing; the casing being disposed in a borehole; a liner; the liner being disposed in the casing and being concentric with the casing; and a layer of material disposed between the liner and the casing; heating the system at a point proximate to the layer of material; and forming a first bond between the layer of material and the liner and a second bond between the layer of material and the casing.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Lei Zhao, Zhiyue Xu
  • Publication number: 20150075768
    Abstract: Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical energy, and applying pressure to a piston as a result of thermally expanding the substance, thereby actuating the well tool, with these steps being repeated for each of multiple actuations of the well tool. A well tool actuator can include a substance contained in a chamber, one or more portions of a reactive material from which chemical energy is released, and a piston to which pressure is applied due to thermal expansion of the substance in response to each release of chemical energy. A well tool actuator which can be actuated multiple times may include multiple portions of a gas generating reactive material, and a piston to which pressure is applied due to generation of the gas.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: ADAM D. WRIGHT, MICHAEL L. FRIPP, DONALD G. KYLE, CYRUS A. IRANI
  • Publication number: 20150064591
    Abstract: A heater includes a heater housing extending along a heater axis. A fuel cell stack assembly is disposed within the heater housing and includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. An electric resistive heating element is disposed within the heater housing. A positive conductor is disposed within the heater housing and is connected to the fuel cell stack assembly and to the electric resistive heating element and a negative conductor is connected to the fuel cell stack assembly and to the electric resistive heating element. The electric resistive heating element is arranged to elevate the fuel cell stack assembly from a first inactive temperature to a second active temperature.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Inventors: KARL J. HALTINER, JR., MARK A. WIRTH
  • Publication number: 20150060061
    Abstract: A heater includes a heater housing with a fuel cell stack assembly disposed therein. The fuel cell stack assembly includes a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. The fuel cell stack assembly includes a fuel cell manifold for receiving the fuel within a fuel inlet and the oxidizing agent within an oxidizing agent inlet and distributing the fuel and oxidizing agent to the fuel cells. A fuel supply conduit supplies the fuel to the fuel inlet and an oxidizing agent supply conduit supplies the oxidizing agent to the oxidizing agent inlet. A sonic orifice is disposed between the fuel supply conduit and the fuel inlet or between the oxidizing agent supply conduit and the oxidizing agent inlet, thereby limiting the velocity of the fuel or the oxidizing agent through the sonic orifice.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 5, 2015
    Inventors: BERNHARD A. FISCHER, KARL J. HALTINER, JR.
  • Publication number: 20140284045
    Abstract: Disclosed herewith are methods and embodiment of an apparatus for using geothermal heat for pyrolysis. In some embodiments, a pyrolysis reaction chamber is lowered into a well, where the pyrolysis reaction can be driven by geothermal heat. In some embodiments the reaction chamber is connected to second chamber to contain the gas reaction products produced by the pyrolysis reaction. In some embodiments, the reaction chamber and the gas collection chamber are separated by some distance in the well, and are connected by a long hose or conduit. A spallation drilling apparatus is also disclosed that uses jets of hot fluid for drilling. This is compatible with drilling wells in high temperature zones, such as a lava dome. A simplified pyrolysis reactor for use in a lava dome is also disclosed, in which the dome functions to contain the reaction, and the apparatus to facilitate pyrolysis is far more compact.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 25, 2014
    Inventor: David Alan McBay
  • Patent number: 8684072
    Abstract: A gas generator has an elongate combustion housing shaped to fit within a borehole for generating gasses in the borehole for use in the recovery of petroleum products. The gas generator includes a plurality of annular cooling jacket segments that surround the elongate combustion housing, each of the annular cooling jacket segments having an inlet port and an outlet port for allowing water to flow therethrough. A plurality of apertures through the elongate combustion housing allow water to flow from the plurality of annular cooling jacket segments into the elongate combustion chamber.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: April 1, 2014
    Assignee: Kreis Syngas, LLC
    Inventor: Rom McGuffin
  • Patent number: 8322449
    Abstract: A method of removing a downhole tool from a wellbore comprising contacting the tool with a heat source wherein the tool comprises at least one load-bearing component comprising a thermally degradable material. A method of reducing the structural integrity of a downhole tool comprising fabricating the load-bearing components of the tool from a thermally degradable material. A method of removing a downhole tool comprising mechanically milling and/or drilling the tool from a wellbore wherein the tool comprises at least one load bearing component comprising a phenolic resin wherein the phenolic resin comprises a rosole, a novalac or combinations thereof.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: December 4, 2012
    Assignees: Halliburton Energy Services, Inc., MCR Oil Tools, LLC
    Inventors: Robert Preston Clayton, Kevin Berscheidt, Michael C. Robertson
  • Patent number: 8291970
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: October 23, 2012
    Assignees: Halliburton Energy Services Inc., MCR Oil Tools, LLC
    Inventors: Loren C. Swor, Brian K. Wilkinson, Michael C. Robertson
  • Patent number: 8291969
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 23, 2012
    Assignees: Halliburton Energy Services Inc., MCR Oil Tools, LLC
    Inventors: Loren C. Swor, Phillip M. Starr, Don R. Smith, Brian Keith Wilkinson, Michael C. Robertson
  • Patent number: 8276661
    Abstract: A method of heating a portion of a subsurface formation includes drawing fuel on a fuel carrier through an opening formed in the formation. Oxidant is supplied to the fuel at one or more locations in the opening. The fuel is combusted with the oxidant to provide heat to the formation.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: October 2, 2012
    Assignee: Shell Oil Company
    Inventors: Michael Costello, Harold J. Vinegar
  • Publication number: 20120073823
    Abstract: A system for subsea extraction of gaseous materials from and preventing the formation of hydrates.
    Type: Application
    Filed: August 26, 2011
    Publication date: March 29, 2012
    Inventors: Jack L. McClanahan, Craig S. Tiras, Jeff McClanahan, Gaurav Dhingra
  • Publication number: 20120055666
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: November 10, 2011
    Publication date: March 8, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Loren C. Swor, Brian K. Wilkinson, Michael C. Robertson
  • Publication number: 20110303407
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: August 25, 2011
    Publication date: December 15, 2011
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Loren C. Swor, Phillip M. Starr, Don R. Smith, Brian K. Wilkinson, Michael C. Robertson
  • Patent number: 8056638
    Abstract: A method of removing a downhole tool from a wellbore comprising contacting the tool with a heat source wherein the tool comprises at least one load-bearing component comprising a thermally degradable material. A method of reducing the structural integrity of a downhole tool comprising fabricating the load-bearing components of the tool from a thermally degradable material. A method of removing a downhole tool comprising mechanically milling and/or drilling the tool from a wellbore wherein the tool comprises at least one load bearing component comprising a phenolic resin wherein the phenolic resin comprises a rosole, a novalac or combinations thereof.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: November 15, 2011
    Assignees: Halliburton Energy Services Inc., MCR Oil Tools, LLC
    Inventors: Robert P. Clayton, Kevin Berscheidt, Michael C. Robertson
  • Patent number: 8051924
    Abstract: A braking device for drilling operations in a borehole includes a brake retainer having a plurality of brake connector openings defined therein, a body member having a tapered surface having a first diameter and a second diameter, the second diameter being larger than the first diameter, at least one brake element positioned at least partially between the brake retainer and the body member and in communication with the tapered surface and at least one of the brake connector openings, and a bias member configured to exert a biasing force on the body member to move the body member toward the brake retainer to move the brake element from contact with the first diameter of the tapered surface toward contact with the second diameter.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 8, 2011
    Assignee: Longyear TM, Inc.
    Inventor: Christopher L. Drenth
  • Patent number: 8047285
    Abstract: The subject matter relates to an apparatus for insertion of a conduit into a well system bore to introduce a reactant fluid over a subterranean catalyst to initiate decomposition of the reactant fluid which resultant energy release may be utilized to perform work or perform heating of the subterranean environment. The energy released from the catalytic reaction and subsequent combustion of fuels may also be used for cutting, welding, powering pumps, compressors, turbines, generators, or to heat well system fluids, pipes, subterranean reservoir fluids, subterranean solids, and completion devices in the well system.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: November 1, 2011
    Inventor: David Randolph Smith
  • Patent number: 7997332
    Abstract: A method of severing a drill string or other tubular string that includes lowering a torch into the drill string, positioning the torch at a joint in the drill string, such that the joint may have a pin component engaged with a box component, igniting the torch to produce cutting fluids, and directing the cutting fluids into the joint in a direction that is along a length of the drill string to cut the joint.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: August 16, 2011
    Assignee: Robertson Intellectual Properties, LLC
    Inventor: Michael C. Robertson
  • Patent number: 7927507
    Abstract: Compositions for hydrogen storage and methods of making such compositions employ an alloy that exhibits reversible formation/deformation of BH4? anions. The composition includes a ternary alloy including magnesium, boron and a metal and a metal hydride. The ternary alloy and the metal hydride are present in an amount sufficient to render the composition capable of hydrogen storage. The molar ratio of the metal to magnesium and boron in the alloy is such that the alloy exhibits reversible formation/deformation of BH4? anions. The hydrogen storage composition is prepared by combining magnesium, boron and a metal to prepare a ternary alloy and combining the ternary alloy with a metal hydride to form the hydrogen storage composition.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: April 19, 2011
    Assignee: HRL Laboratories, LLC
    Inventors: Wen Li, John J. Vajo, Robert W. Cumberland, Ping Liu
  • Patent number: 7905290
    Abstract: A method for the thermal stimulation of a geological gas hydrate formation (10) is described in which thermal energy is supplied to the gas hydrate formation (10) so that gas hydrates in the gas hydrate formation (10) are converted and gaseous components are released and the supplied thermal energy is delivered by an exothermal chemical reaction that takes place in a reactor (20) arranged in the gas hydrate formation (10). A device for carrying out the process is also described.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 15, 2011
    Inventor: Judith Maria Schicks
  • Patent number: 7874350
    Abstract: An apparatus for generating a heated product stream downhole is provided wherein a fuel rich mixture is reacted downhole by contact with a catalyst to produce a partially reacted product stream, the fuel rich mixture comprising fuel and oxygen. The partially reacted product stream is brought into contact with an oxidant thereby igniting combustion upon contact producing a combustion product stream. The combustion product stream may be cooled by injecting a diluent flow such as water or CO2. The cooled combustion product stream may be injected into oil bearing strata in order to reduce the energy requirements for the production of heavy oil.
    Type: Grant
    Filed: January 6, 2010
    Date of Patent: January 25, 2011
    Assignee: Precision Combustion, Inc.
    Inventor: William C. Pfefferle
  • Patent number: 7743826
    Abstract: A system and process is disclosed for retorting oil shale and extracting shale oil and other hydrocarbons therefrom, in which a cased heat delivery well is drilled generally vertically through an overburden and then through a body of oil shale to be retorted to the bottom thereof, generally horizontally under the body of oil shale to be retorted, and then back to the earth surface. Heat energy is transmitted conductively to the body of oil shale to be retorted from a closed loop heat delivery module in the well, the module comprising a fluid transmission pipe containing a heating fluid heated to at least a retorting temperature. Heat energy is also transmitted to the body of oil shale to be retorted above the fluid transmission pipe by vapor conduits that conduct retort vapors upward through the body of oil shale to be retorted; the ascending retort vapors condense and reflux, delivering their latent heat of vaporization to the body of oil shale to be retorted, and the condensed retort liquids descend.
    Type: Grant
    Filed: January 19, 2007
    Date of Patent: June 29, 2010
    Assignee: American Shale Oil, LLC
    Inventors: Harry Gordon Harris, Paul Lerwick, R. Glenn Vawter
  • Patent number: 7726392
    Abstract: A drill string in a borehole can be cut at the drill collars. A torch is lowered into the drill string and positioned at a joint of the drill collar string. The joint has a pin component and a box component. The torch has one or more openings in the pattern of a vertical slot. The torch is ignited and the pin component is cut in a direction along the length of the drill string. The joint uncoupled, even though the box component need not be cut. The uncoupling of the joint effectively cuts the drill string at the joint.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: June 1, 2010
    Inventor: Michael C. Robertson
  • Publication number: 20100108305
    Abstract: An apparatus for generating a heated product stream downhole is provided wherein a fuel rich mixture is reacted downhole by contact with a catalyst to produce a partially reacted product stream, the fuel rich mixture comprising fuel and oxygen. The partially reacted product stream is brought into contact with an oxidant thereby igniting combustion upon contact producing a combustion product stream. The combustion product stream may be cooled by injecting a diluent flow such as water or CO2. The cooled combustion product stream may be injected into oil bearing strata in order to reduce the energy requirements for the production of heavy oil.
    Type: Application
    Filed: January 6, 2010
    Publication date: May 6, 2010
    Inventor: William C. Pfefferle
  • Publication number: 20100108327
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: December 31, 2009
    Publication date: May 6, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Loren C. Swor, Brian K. Wilkinson
  • Publication number: 20100089566
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: December 16, 2009
    Publication date: April 15, 2010
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Loren Swor, Phillip Starr, Don R. Smith, Brian K. Wilkinson
  • Publication number: 20090200023
    Abstract: A method of heating a portion of a subsurface formation includes drawing fuel on a fuel carrier through an opening formed in the formation. Oxidant is supplied to the fuel at one or more locations in the opening. The fuel is combusted with the oxidant to provide heat to the formation.
    Type: Application
    Filed: October 13, 2008
    Publication date: August 13, 2009
    Inventors: Michael Costello, Harold J. Vinegar
  • Publication number: 20090008090
    Abstract: A subterranean zone is treated by exothermically decomposing hydrogen peroxide in or near the subterranean zone. The decomposed hydrogen peroxide yields at least oxygen and heated water. The oxygen is combusted to further heat the heated water. The heated water is introduced into subterranean zone to treat the subterranean zone. In certain instances, the heated water is heated to produce 100% quality steam. Additional water may be supplied for treating the subterranean zone, for example, by supplying the hydrogen peroxide in solution with water.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 8, 2009
    Inventors: Roger L. Schultz, Travis W. Cavender, Matt E. Blauch
  • Publication number: 20080257549
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: May 13, 2008
    Publication date: October 23, 2008
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Loren C. Swor, Brian K. Wilkinson
  • Publication number: 20070284097
    Abstract: A downhole tool having a body or structural component comprises a material that is at least partially consumed when exposed to heat and a source of oxygen. The material may comprise a metal, such as magnesium, which is converted to magnesium oxide when exposed to heat and a source of oxygen. The downhole tool may further comprise a torch with a fuel load that produces the heat and source of oxygen when burned. The fuel load may comprise a flammable, non-explosive solid, such as thermite.
    Type: Application
    Filed: June 8, 2006
    Publication date: December 13, 2007
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Loren Swor, Phillip Starr, Don R. Smith, Brian K. Wilkinson
  • Patent number: 7249630
    Abstract: A well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit, such as casing, in a subterranean well. A fuel charge is provided and is ignited to first melt the lower temperature melting metal alloy charge and thereafter the higher temperature metal alloy charge, such that a metal precipitate is formed from the heated higher temperature melting metal alloy charge. The housing defines a sacrificial wall which is opened or cleared as the higher temperature metal alloy charge melts, thus enabling the precipitate of the higher temperature melting alloy charge to be discharged from the housing to form a bridge for subsequent movements thereacross of the lower temperature melting alloy charge, into the well immediate the area of the failure spots.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: July 31, 2007
    Assignee: Cinaruco International S.A. Calle Aguilino de la Guardia
    Inventor: Louis J. Wardlaw
  • Patent number: 7182132
    Abstract: A ceramic fuel cell(s) is supported in a heat conductive interconnect plate, and a plurality of plates form a conductive heater named a stack. Connecting a plurality of stacks forms a stick of fuel cells. By connecting a plurality of sticks end to end, a string of fuel cells is formed. The length of the string can be one thousand feet or more, sized to penetrate an underground resource layer, for example of oil. A pre-heater brings the string to an operating temperature exceeding 700° C., and then the fuel cells maintain that temperature via a plurality of conduits feeding the fuel cells fuel and an oxidant, and transferring exhaust gases to a planetary surface. A manifold can be used between the string and the planetary surface to continue the plurality of conduits and act as a heat exchanger between exhaust gases and oxidants/fuel.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: February 27, 2007
    Assignee: Independant Energy Partners, Inc.
    Inventor: Marshall T. Savage
  • Patent number: 7165607
    Abstract: A heating tool used for heating cement and/or a ground formation zone and melting billets in a down hole application for sealing oil and gas wells from gas migration. The heating tool has a billet loader which allows a plurality of billets to be loaded into the top of the tool and which billets then pass downward into a magazine and the lowermost heating area of the tool to rest on a billet retainer.
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: January 23, 2007
    Inventors: Thomas A. La Rovere, Homer L. Spencer
  • Patent number: 6978837
    Abstract: Methods and apparatus for producing methane gas from a hydrate formation. A column of modified material substantially filling a wellbore extending into the hydrate formation. The column of modified material is permeable to gases. A heat source extends into the column of modified material and is operable to provide heat to the hydrate formation so as to release methane gas from the hydrate formation. Methane gas flow through the column of modified material to a gas collector, which regulates the flow of gas to a production system.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: December 27, 2005
    Inventor: Charles R. Yemington
  • Patent number: 6758668
    Abstract: A preheating apparatus is disclosed which supports a hollow, cylindrical combustible heating element. A solid fuel mixture is used to generate hot gases for the heating of metal surfaces for pre-welding purposes. A grooveway is imbedded radially around the upper portion of the solid fuel mixture. An oxygen liberating pre-starter compound is housed in the grooveway for uniformity of ignition of the combustible solid fuel to permit a more uniform and consistent burn of the solid fuel during hot gas generation.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: July 6, 2004
    Inventor: Louis J. Wardlaw
  • Patent number: 6684948
    Abstract: A fuel cell based subterranean heater for mineral extraction, in situ decontamination, or other applications. The fuel cells are preferably stacked within a casing which is then inserted into a hole bored, or otherwise formed, into the formation to be heated. Conduits within the casing, and preferably formed by adjacent, aligned holes formed through the plates of the individual fuel cells supply fuel and air and extract exhaust gases. An optional manifold is used to span the overburden without applying heat to it directly. The manifold may also function as a heat exchanger between incoming and exhaust gases. Preferably the fuel cell is fueled by gases produced by the formation and also generates electricity which is available for use or export.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: February 3, 2004
    Inventor: Marshall T. Savage
  • Patent number: 6491096
    Abstract: The present invention provides a two phase heat generation system (10) having a primary pressure vessel (108), an, interior vessel (122) spaced from the primary pressure vessel (108) defining a water jacket cavity (124) and a combustion chamber (125), the water cavity (124) being in fluid communication with the combustion chamber (126), the combustion chamber (126) having a combustion burner (144) for controlling combustion, a delivery conduit (136) being in communication with the combustion chamber (126) for delivering gas and compressed air into the combustion chamber (126) and an outlet passage (164) being in communication with the combustion chamber (126) for delivering of a two phase product.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: December 10, 2002
    Inventor: John A. Masek
  • Patent number: 6269882
    Abstract: A combustor method and apparatus is provided. The method utilizes flameless combustion with one or more of three improvements to enhance ignition of the flameless combustor. A catalytic surface can be provided within a combustion chamber to provide flameless combustion at least in the vicinity of the catalytic surface at a temperature that is much lower than the autoignition temperature of fuel in air without the presence of the catalytic surface. Nitrous oxide or supplemental oxygen may also be used as an oxidant either instead of air or with air to reduce ignition temperatures. Further, electrical energy can be passed through the fuel conduit, raising the temperature of the conduit to a temperature above which the fuel will ignite when combined with the oxidant.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: August 7, 2001
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Thomas Mikus, Harold J. Vinegar, John Michael Karanikas
  • Patent number: 6044907
    Abstract: The present invention provides a two phase heat generation system having a primary pressure vessel and an interior vessel spaced from the primary pressure vessel defining a water cavity and a combustion chamber, the water cavity delivering fluid into the combustion chamber, the combustion chamber having a combustion burner and flame arrestor for controlling combustion; an inlet port being in communication with the combustion chamber for delivering gas and compressed air into the combustion chamber and an outlet for delivery of a two phase product.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: April 4, 2000
    Inventor: John A. Masek
  • Patent number: 6019172
    Abstract: A combustor method and apparatus is provided. The method utilizes flameless combustion with one or more of three improvements to enhance ignition of the flameless combustor. A catalytic surface can be provided within a combustion chamber to provide flameless combustion at least in the vicinity of the catalytic surface at a temperature that is much lower than the autoignition temperature of fuel in air without the presence of the catalytic surface. Nitrous oxide or supplemental oxygen may also be used as an oxidant either instead of air or with air to reduce ignition temperatures. Further, electrical energy can be passed through the fuel conduit, raising the temperature of the conduit to a temperature above which the fuel will ignite when combined with the oxidant.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: February 1, 2000
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Thomas Mikus, Harold J. Vinegar, John Michael Karanikas
  • Patent number: 5899269
    Abstract: A combustor method and apparatus is provided. The method utilizes flameless combustion with one or more of three improvements to enhance ignition of the flameless combustor. A catalytic surface can be provided within a combustion chamber to provide flameless combustion at least in the vicinity of the catalytic surface at a temperature that is much lower than the autoignition temperature of fuel in air without the presence of the catalytic surface. Nitrous oxide or supplemental oxygen may also be used as an oxidant either instead of air or with air to reduce ignition temperatures. Further, electrical energy can be passed through the fuel conduit, raising the temperature of the conduit to a temperature above which the fuel will ignite when combined with the oxidant.
    Type: Grant
    Filed: December 26, 1996
    Date of Patent: May 4, 1999
    Assignee: Shell Oil Company
    Inventors: Scott Lee Wellington, Thomas Mikus, Harold J. Vinegar, John Michael Karanikas
  • Patent number: 4507082
    Abstract: A preheating insert is disclosed. The preferred and illustrated embodiment incorporates an encircling bottom support having a centralized hollow tube. It is made of a frangible material to be easily broken should it fall into the pipe. It supports a hollow, cylindrical, combustible heating element. The heating element is made of thermite as an example. It includes a top located deflector plate to deflect hot gases flowing upwardly from combustion against the wall of a pipe to be heated. The apparatus is concentrically located within the pipe in the vicinity of the pipe section to be heated.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: March 26, 1985
    Inventor: Louis J. Wardlaw, III
  • Patent number: 4180131
    Abstract: A chemical cutting apparatus and method for cutting objects in well bores such as, for example, tubing in the bore of an oil or gas well. The apparatus is properly positioned and an igniter is fired activating a gas generator. The resultant pressure axially displaces a slidable piston having one or more wedges pivotally connected thereto. Movement of the piston anchors the apparatus relative to the object to be cut. The pressure is then communicated through the slidable piston forcing a chemical cutting agent into a chamber containing a reactant. The resultant reaction increases the pressure and temperature thereby displacing along the axis a second slidable piston. Movement of the second slidable piston exposes radial exhaust orifices thereby allowing the reacting elements in the chamber to escape with great velocity and to contact the object to be cut. The second slidable piston is then held firmly in place.
    Type: Grant
    Filed: October 20, 1978
    Date of Patent: December 25, 1979
    Assignee: Weatherford/DMC
    Inventor: Edmond D. Chammas