With Specific Downhole Feature Patents (Class 166/177.2)
  • Patent number: 11391105
    Abstract: A method and system for downhole pulse generation determines an optimal frequency and, in some embodiments, amplitude of axial pressure pulses to maximize the rate of penetration. Specifically, one or more sensors may be disposed on or near an axial oscillation tool that provides near real-time raw sensor data relating to speed, velocity, and acceleration of the tool. With this sensor data, an optimal set of parameters, namely an optimal frequency and, in some embodiments, amplitude may be determined based on the hydraulic conditions and frictional forces of the actual drilling environment. An optimizing control system may directly communicate these parameters to the axial oscillation tool or pass the parameters to an axial oscillation tool control system that controls the operation of the tool. Advantageously, frictional forces may be substantially reduced, the rate of penetration may be substantially enhanced, and power consumption may be intelligently managed.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: July 19, 2022
    Assignee: QUANTUM ENERGY TECHNOLOGIES LLC
    Inventors: David A. Switzer, Irina Alexina
  • Patent number: 11293735
    Abstract: A method, system and apparatus for plasma blasting comprises a borehole for water, oil or gas extraction, an in hole capacitor bank for powering a blast probe, the probe comprising a high voltage electrode and a ground electrode separated by an insulator, wherein the high voltage electrode and the insulator constitute an adjustable probe tip, and an adjustment unit coupled to the adjustable probe tip, wherein the adjustment unit is configured to selectively extend or retract the adjustable probe tip relative to the ground electrode and a blasting media, wherein at least a portion of the high voltage electrode and the ground electrode are submerged in the blast media. The blasting media comprises water. The adjustable tip permits fine-tuning of the blast.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 5, 2022
    Assignee: Petram Technologies, Inc
    Inventors: Frank A. Magnotti, Frank A Magnotti, II
  • Patent number: 11131172
    Abstract: A method for extracting gas by fracturing a coal seam through a combination of hydraulic slotting and multi-stage combustion impact wave comprises cutting slots in an impact borehole using a hydraulic slotting equipment to perform pressure relief and permeability enhancement on a coal seam and enlarge a N2 (nitrogen gas) or CO2 (carbon dioxide gas) storage space, injecting a large amount of N2 or CO2 into the borehole by means of a high pressure gas cylinder and a pressure reducing valve through a gas injection and extraction pipe, then injecting a certain amount of methane and dry air into a high-temperature and high-pressure combustion chamber by means of the high pressure gas cylinder and the pressure reducing valve, so that the gases are mixed and combusted to form high-temperature and high-pressure impact wave to push a piston to compress the N2 or CO2, thereby generating a large number of factures on the coal seam around the impact borehole under guiding action of the slots.
    Type: Grant
    Filed: October 29, 2018
    Date of Patent: September 28, 2021
    Assignees: China University of Mining and Technology, Xuzhou Boan Science & Technology Development Co., Ltd
    Inventors: Baiquan Lin, Yang Zhao, Wei Yang, Qingzhao Li
  • Patent number: 10987707
    Abstract: The group of inventions relates to the oil-and-gas extraction industry, in particular to equipment for removing deposits of asphaltenes, resins, paraffins, hydrates, calcium salts, etc. from tubing strings of oil and gas wells without extracting said tubing strings from the wells. This instrument can also be used for cleaning water-extracting wells and other wells. The internal surface of a tubing string is cleaned by a combined action (ultrasonic, mechanical, heat) on contaminants. Owing to the fact that operation of a well does not stop, dirt atomized by the combined action is raised to the surface and removed from the well by a stream of fluid. A system for ultrasonic cleaning of a tubing string consists of an ultrasonic generator and a downhole ultrasonic scraper, which comprises a converter converting electrical vibrations into mechanical vibrations, which is placed into a protective casing and is connected to a vibration transformer, which boosts the amplitude of vibrations of ultrasonic transducers.
    Type: Grant
    Filed: November 15, 2017
    Date of Patent: April 27, 2021
    Assignee: ILMASONIC-SCIENCE LIMITED LIABILITY COMPANY
    Inventors: Alexandr Alexeevich Saltykov, Yuriy Alexeevich Saltykov, Andrey Alexandrovich Rukhman
  • Patent number: 10876387
    Abstract: A method, system and apparatus for plasma blasting comprises a borehole for oil or gas extraction, an in hole capacitor bank for powering a blast probe, the probe comprising a high voltage electrode and a ground electrode separated by a dielectric separator, wherein the high voltage electrode and the dielectric separator constitute an adjustable probe tip, and an adjustment unit coupled to the adjustable probe tip, wherein the adjustment unit is configured to selectively extend or retract the adjustable probe tip relative to the ground electrode and a blasting media, wherein at least a portion of the high voltage electrode and the ground electrode are submerged in the blast media. The blasting media comprises water. The adjustable tip permits fine-tuning of the blast.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: December 29, 2020
    Assignee: Petram Technologies, Inc.
    Inventors: Frank A. Magnotti, Frank A Magnotti, II
  • Patent number: 10858913
    Abstract: A permeability enhancement method for coalbed methane wells by using electric pulse detonation fracturing technology is applicable to exploitation of coalbed methane wells in coal beds with low permeability. Firstly, a positive electrode coalbed methane wellbore and a negative electrode coalbed methane wellbore are constructed from the ground surface to a coal bed. A fixed platform installed with a positive electrode and a high-voltage pulse device are placed, by using a derrick, downwards to a predetermined permeability enhancement portion of the coal bed in the positive electrode coalbed methane wellbore, and another fixed platform installed with a negative electrode is placed, by using a derrick, downwards to a predetermined permeability enhancement portion of the coal bed in the negative electrode coalbed methane wellbore.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: December 8, 2020
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Bai quan Lin, Fazhi Yan, Xiangliang Zhang, Jia Kong, Ting Liu, Chuanjie Zhu
  • Patent number: 10774621
    Abstract: A device is for perforation of a downhole formation. The device has an electronically induced acoustic shock wave generator; and an acoustic shock wave focusing member. The device is adapted to focus generated acoustic shock waves onto an area of a borehole in order to disintegrate the downhole formation within said area. The device is adapted to generate a plurality of consecutive focused acoustic shock waves in order to gradually excavate a perforation tunnel, or to improve an already existing perforation tunnel, extending from said borehole and into said formation.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: September 15, 2020
    Assignee: qWave AS
    Inventor: Hans Petter Eng
  • Patent number: 10746006
    Abstract: Some embodiments include a plasma source. The plasma source includes: (i) a plasma emitter having a first electrode and a second electrode defining an electrode gap therebetween; (ii) stands disposed adjacent to the electrode gap and the plasma emitter; (iii) emitter openings configured such that shockwaves generated by the plasma source are directed through the emitter openings and radially from the plasma emitter, wherein adjacent emitter openings of the emitter openings are separated from each other by at least one stand of the stands; (iv) an enclosure housing at a distal end of the plasma emitter and having a delivery device configured to introduce a conductor through an opening in the second electrode and into the electrode gap; and a device housing at a proximal end of the plasma emitter and having a transformer, a capacitor unit, and a contactor. Other embodiments of related systems and methods are also disclosed.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: August 18, 2020
    Assignee: NOVAS ENERGY GROUP LIMITED
    Inventors: P. G. Ageev, A. A. Molchanov
  • Patent number: 10598635
    Abstract: Provided herein are systems and methods for real time processing of signals from an array of transducers for detecting transient elastic waves originating from unknown locations in a body, which may propagate in a dispersive fashion. The systems and methods allow real time combination and analysis of signals, including decisions regarding storage as new data is received. The methods described herein include designing arrays of detectors and methods for processing signals in real time given the constraints of the body under test determining whether to store the set of information while a new set of information is received for processing within a real time environment. The methods described herein include methods which result in the determination or small time shifts which place all signals into a coherent time base which are then combined achieving a composite waveform that possesses an increased signal-to-noise ratio over any single element.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: March 24, 2020
    Assignee: HEXAGON TECHNOLOGY AS
    Inventors: Brian M. Burks, Steven M. Ziola
  • Patent number: 10557327
    Abstract: A bridge plug for a well includes an actuator member that moves from a first position such that the bridge plug is in a retracted position and a second position such that the bridge plug is in a deployed position. The bridge plug includes a slip section comprising one or more slips that grip a surface radially outward of the bridge plug in the deployed position and a petal section positioned downward of and adjacent to the slip section, the petal section comprising a plurality of petals that fan radially outward from the bridge plug in the deployed position to catch a slurry. The bridge plug also includes a centralizer section positioned downward of and adjacent to the pedal section, the centralizer section having a plurality of centralizers that ramp outwardly in an upward direction in the deployed position for centralizing the bridge plug.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 11, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jack Clemens, David Larimore, Mark Holly
  • Patent number: 10436691
    Abstract: Methods of assessing asphaltene inhibitor/dispersant efficiency are disclosed. Also disclosed are methods of assessing solvent/dispersant/cleaner efficacy for remediating asphlatene deposition. The methods are useful in facilitating the production, transportation, storage, and separation of crude oil and natural gas, and more particularly, for preventing the undesired deposition of asphaltene from crude oil.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: October 8, 2019
    Assignee: ECOLAB USA INC.
    Inventors: David Marc Daniel Fouchard, Jennifer Elaine Carmichael
  • Patent number: 10280723
    Abstract: In some embodiments, a plasma source can comprise a plasma emitter comprising a first electrode and a second electrode, the first electrode and the second electrode defining an electrode gap. In some embodiments, the plasma source can further comprise an enclosure housing attached to a distal end of the plasma emitter, the enclosure housing can comprise a delivery device configured to introduce a metal conductor through an axial opening in the second electrode and into the electrode gap and a device housing attached to a proximal end of the plasma emitter, the device housing can comprise a high voltage transformer electrically coupled to a capacitor unit. In some embodiments, the capacitor unit electrically can be coupled to a contactor, and the contactor can be electrically coupled to the first electrode. Other embodiments of related methods and systems are also provided.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: May 7, 2019
    Assignee: NOVAS ENERGY GROUP LIMITED
    Inventors: P. G. Ageev, A. A. Molchanov
  • Patent number: 10266923
    Abstract: A magnesium alloy is suitable for use as a corrodible downhole article, wherein the alloy includes: (a) 2-7 wt % Gd, (b) 0-2 wt % Y, (c) 0-5.0 wt % Nd, and (d) at least 80 wt % Mg, and has an elongation as measured by ASTM B557M-10 of at least 22%.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: April 23, 2019
    Assignee: Magnesium Elektron Limited
    Inventors: Timothy E. Wilks, Mark Turski, Matthew Murphy
  • Patent number: 10202827
    Abstract: A device (20) for stimulation of wells, includes a tool (200) including a capacitive element (205) and a stimulation head (210). The device further includes switching elements capable of placing the tool (200) in at least two states: i) a charging state in which the capacitive element and the stimulation head are electrically in series between the first terminal and the second terminal of the tool, in such a way that the electrical source charges the capacitive element through the stimulation head (210), and ii) a discharging state in which the capacitive element discharges through the stimulation head (210). Also, a diagnostic method for such a device (20) for stimulation of wells.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 12, 2019
    Assignee: ENE29 S.AR.L
    Inventors: Michael Delchambre, Salvador Moncho, Xavier Horsot
  • Patent number: 10081853
    Abstract: A magnesium alloy is suitable for use as a corrodible downhole article, wherein the alloy includes: (a) 11-15 wt % Y, (b) 0.5-5 wt % in total of rare earth metals other than Y, (c) 0-1 wt % Zr, (d) 0.1-5 wt % Ni, and (e) at least 70 wt % Mg. It has been surprisingly found by the inventors that by increasing the Y content of the alloy to the range specified above, increased age hardening response and hence increased 0.2% proof stress can be achieved.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: September 25, 2018
    Assignee: Magnesium Elektron Limited
    Inventors: Timothy E. Wilks, Mark Turski, Matthew Murphy
  • Patent number: 10012063
    Abstract: A method, system, and electrode assembly are disclosed that maximizes the lifetime of electrodes for high energy electrical discharges in water by arranging the electrodes in concentric rings or a stack of concentric rings. The radii and the thickness of the ring electrodes are optimized for electrical reliability, low jitter, and minimal erosion. In one embodiment, the electrode assembly is configured to be disposed in a subterranean dielectric medium, receive an electric current pulse having a length of time greater than 100 microseconds, and form an electric arc between the first electrode and the second electrode, thereby producing a pressure pulse axially away from the insulator.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: July 3, 2018
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Stein J. Storslett, Rick B. Spielman
  • Patent number: 9957765
    Abstract: A downhole tool is disclosed herein that has an inlet for receiving fluid into a housing of the downhole tool. The downhole tool further includes a vibratory apparatus at least partially disposed within the housing of the downhole tool, the vibratory apparatus having an operational flow path disposed therein to operate the vibratory apparatus when fluid flowing through the operational flow path is above a predetermined pressure. Furthermore, the downhole tool has a bypass passageway disposed in the housing for providing an additional flow path for fluid through the downhole tool to prevent fluid from reaching the predetermined pressure in the operational flow path of the vibratory apparatus, the bypass passageway selectively blockable such that fluid in the operational flow path is increased above the predetermined pressure to activate the vibratory apparatus when the bypass passageway is blocked. A method of using the downhole tool is also disclosed.
    Type: Grant
    Filed: June 11, 2015
    Date of Patent: May 1, 2018
    Assignee: Thru Tubing Solutions, Inc.
    Inventors: Roger Schultz, Andy Ferguson
  • Patent number: 9847738
    Abstract: A piezoelectric power generation system includes a housing defining an opening therethrough and a support structure disposed within the housing, the support structure comprising a plurality of portions. The piezoelectric power generation system also includes one or more piezoelectric elements disposed between two of the plurality of portions of the support structure within the housing. Movement or vibration in the support structure compresses the one or more piezoelectric elements, wherein the one or more piezoelectric elements generate electric energy when compressed. The piezoelectric power generation system further includes one or more exciters coupled to the support structure, wherein the exciters move or vibrate when acted on by a flow of fluid, wherein the motion of vibration of the one or more exciters is translated to the support structure and ultimately to the one or more piezoelectric elements.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: December 19, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Namhyo Kim, Alvaro Jose Arrazola, James Benjamin Bloys
  • Patent number: 9650889
    Abstract: A repeater for use downhole in an oil or other well for detecting a sound or other signal that originates further downhole and generating a signal or indication perceptible uphole or at or above the rig floor. The signal may be a change in the weight of the rig measured at the rig floor caused by driving a counterweight against a stop at the repeater.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: May 16, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: William Mark Richards
  • Patent number: 9624724
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate control the operation of a fluid pulse source using drilling fluid to excite vibrations in a shock sub, increasing the axial vibration in a drill string to reduce static friction between the drill string and a formation surrounding the drill string. The vibrations are excited at a fundamental frequency that is outside of the operational communications frequency range of an associated acoustic telemetry communications system. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: April 18, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Paul F. Rodney
  • Patent number: 9580997
    Abstract: Disclosed is a method for restoring, maintaining, or increasing well productivity or reducing a water cut. The method comprises positioning an acoustic device in a well located within the geological formation and performing an acoustic treatment impacting a muddled zone in cycles comprising one or more manipulated waves of ultrasonic pressure on the muddled zone. The cycles comprising treatment comprise a Fourier transformation of a periodic function, wherein the transformation determines a rate at which an acoustic treatment pressure of each cycle rises from a value of zero to a maximum value. This rate is directly proportional to a force of an impact on the formation, and the greater the rate, the greater the impact. A cycle frequency is determined and designed based on particular formation parameters and particular treatment parameters obtained by sensors positioned on the acoustic device. The treatment is repeated until well productivity is restored.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 28, 2017
    Inventor: Yevgeny B. Levitov
  • Patent number: 9447669
    Abstract: A method for improving and maintaining well productivity is disclosed. The method comprises placing acoustic devices within wells of a geological formation, measuring parameters for initial pulsed acoustic impact, and continuing to measure parameters in order to change impact parameters during production to optimize the acoustic effect. The method may be used to restore, maintain, or increase the productivity of an entire geological formation (oil or gas), and to reduce the water cut in the formation.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: September 20, 2016
    Inventors: Yevgeny B. Levitov, Ernest Orentlikherman, Isaak Orentlikherman
  • Patent number: 9422799
    Abstract: A plasma source for generating nonlinear, wide-band, periodic, directed, elastic oscillations in a fluid medium. The plasma source includes a plasma emitter having two electrodes defining a gap, a delivery device for introducing a metal conductor into the gap, and a high voltage transformer for powering the plasma emitter. A system and method for stimulating wells, deposits, and boreholes through controlled periodic oscillations generated using the plasma source. The system includes the plasma source, a ground control unit, and a support cable. In the method, the plasma source is submerged in the fluid medium of a well, deposit, or borehole and is used to create a metallic plasma in the gap. The metallic plasma emits a pressure pulse and shockwaves, which are directed into the fluid medium. Nonlinear, wide-band, periodic and elastic oscillations are generated in the fluid medium, including resonant oscillations by passage of the shockwaves.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: August 23, 2016
    Assignee: Novas Energy Group Limited
    Inventors: P. G. Ageev, A. A. Molchanov
  • Patent number: 9038746
    Abstract: A method for determining position of a wellbore in the Earth's subsurface includes actuating a plurality of seismic energy sources each disposed at a known geodetic position. Seismic energy from the sources is detected at a selected location along the wellbore. The geodetic position at the selected location is determined from the detected seismic energy. A corresponding method includes actuating a seismic energy source at a selected position within the wellbore. The seismic energy is detected at a plurality of known geodetic positions. The geodetic position of the source is determined from the detected seismic energy.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: May 26, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Benny Poedjono
  • Patent number: 8997855
    Abstract: An apparatus includes a body shaped to deform a wellbore tool in a predetermined manner. A vibration device applies a vibration to the body to reduce a frictional force caused when the body deforms the wellbore tool. In one arrangement, the vibration devices imparts a resonant wave motion to a swaging apparatus that is being pushed through a passage of a wellbore tubular. A swaging body vibrates at a resonant frequency along the long axis of the wellbore tubular and/or normal to long axis of the wellbore tubular. The relative motion between the swaging body and the tubular member reduces the force required to expand the wellbore tubular. Optionally, a controller operatively connected to the vibration device adjusts the operation of the vibration device in response to the sensor measurements of the vibrations in the swage body.
    Type: Grant
    Filed: September 27, 2007
    Date of Patent: April 7, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Edward J. O'Malley, Steven N. Bailey
  • Patent number: 8947975
    Abstract: An apparatus for use in a wellbore is provided that in one embodiment may include at least one transmitter configured to generate acoustic signals in the wellbore, at least one receiver configured to receive acoustic signals from a formation surrounding the wellbore in response to the transmitted acoustic signal and also configured to provide electrical signals representative of the received acoustic signals, a circuit configured to apply a time-variable gain to the electrical signals to amplify the electrical signals, and a processor configured to process the amplified electrical signals and provide a property of interest.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: February 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: James Domnanish, Paul Lowson
  • Patent number: 8939200
    Abstract: Selected designs for reciprocating pumps and down-hole well-stimulation equipment reflect disparate applications of identical technical principles (relating to, e.g., the vibration spectrum of an impulse). In certain of these designs, the vibration spectrum is controlled, suppressed and/or damped using tunable components to limit destructive excitation of resonances; in others the vibration spectrum is tuned at its source for maximum resonance excitation. For example, tunable fluid ends control valve-generated vibration to increase fluid-end reliability. By down-shifting the frequency domain of each valve-closing impulse shock, initial excitation of fluid end resonances is minimized. Subsequent damping and/or selective attenuation of vibration likely to excite one or more predetermined (and frequently localized) fluid end resonances represents further optimal use of fluid end vibration-control resources.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: January 27, 2015
    Inventors: Dennis W. Gilstad, Barbara C. Gilstad
  • Patent number: 8893785
    Abstract: A method of determining an azimuthal orientation of a well tool relative to a line in a well can include connecting at least one acoustic source to the well tool, the acoustic source having a known azimuthal orientation relative to the well tool, and detecting at least one acoustic signal transmitted from the acoustic source to an acoustic sensor, the acoustic sensor having a known azimuthal orientation relative to the line. A system for determining an azimuthal orientation of one or more lines relative to a well tool in a wellbore can include at least one acoustic source having a known azimuthal orientation relative to the well tool, and an optical waveguide connected to a distributed acoustic sensing instrumentation, the waveguide having a known azimuthal orientation relative to the lines, and in which the distributed acoustic sensing instrumentation detects acoustic signals transmitted from the acoustic source to the waveguide.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: November 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neal G. Skinner, Michael L. Fripp
  • Patent number: 8881807
    Abstract: Disclosed herein is an autonomous and consistently active acoustic rehabilitation technology for wells, reservoirs, and extraction of natural resources using a borehole method. The invention can be used in oil, gas, mining, geological exploration industries, and in extraction technologies for oil and gas, including shale. It is especially useful for improvement of oil and gas output from wells and stimulation of production for maximizing recovery from reserves. The invention is applicable to areas including, but not limited to, well reserves using pumps, layer pressure supporting wells, and offshore-bed wells.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: November 11, 2014
    Assignee: Well-Smart Technologies—Global, Inc
    Inventors: Ernest Orentlikherman, Isaak Orentlikherman
  • Publication number: 20140174726
    Abstract: A technique employs the use of oscillations downhole to facilitate a desired functionality of a downhole tool. According to this technique, a tool is initially conveyed downhole and operated to perform a function that relates to a downhole application. The operational efficiency of the tool is improved by creating oscillating forces which vibrate the tool to achieve a desired result, e.g. freeing the tool from a stuck position.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Edward Harrigan, Jahir Pabon, K. N. Satish Kumar, Sashank Vasireddy, Murat Ocalan, Shunfeng Zheng
  • Publication number: 20140144618
    Abstract: A hydrodynamic pulse tool and method for cleaning, stimulation and production enhancement of oil, gas and injection wells by propagating successive pressure waves through the wellbore and/or the producing/injecting formation in a directional or vectored manner. The tool comprises a resonance chamber defined by a generally cylindrical hollow tubular member adapted for connection to conventional coiled or jointed tubing, and at least one hydraulically driven pulse generator rotatably disposed within the resonance chamber. The hydraulic force of pressurized fluid pumped through the tool drives the rotation of the at least one pulse generator, which generates successive sequential hydraulic pressure pulses in a sequential, sequential offsetting and/or sequential reinforcing manner.
    Type: Application
    Filed: April 13, 2012
    Publication date: May 29, 2014
    Inventor: William E. Groves
  • Patent number: 8729440
    Abstract: A radio frequency heater is disclosed including a vessel for containing material to be heated and a radio frequency radiating surface. The vessel has a wall defining a reservoir. The radio frequency radiating surface at least partially surrounds the reservoir. The radiating surface includes two or more circumferentially spaced petals that are electrically isolated from other petals. The petals are positioned to irradiate at least a portion of the reservoir, and are adapted for connection to a source of radio frequency alternating current. A generally conical tank or tank segment having a conically wound radio frequency applicator is also contemplated. Also, a method of heating an oil-water process stream is disclosed. In this method a radio frequency heater and an oil-water process stream are provided. The process stream is irradiated with the heater, thus heating the water phase of the process stream.
    Type: Grant
    Filed: March 2, 2009
    Date of Patent: May 20, 2014
    Assignee: Harris Corporation
    Inventor: Francis Eugene Parsche
  • Patent number: 8684076
    Abstract: The method and apparatus for enhancing fluid removal from a fracture in a geologic formation by applying periodic/cyclic shock waves to the fracture in a formation surrounding a wellbore which has undergone fracturing. In accordance with the invention, the method includes the steps of arranging a device attached to an end of a tubing string inside a wellbore in a vicinity of said fracture for generating shock waves, providing a liquid via the tubing string into the device for generating shock waves with the amplitude Pa of shock waves determined by a following expression: 0.3 MPa?Pa?1.4Pp?0.8?gH, where Pp is a formation pore pressure, ? is a formation density, g is a gravity acceleration, H is a depth of said fracture, Pa is an amplitude of the shock wave.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: April 1, 2014
    Inventors: Sergey A Kostrov, William O Wooden
  • Patent number: 8613312
    Abstract: The invention provides an apparatus and method for stimulating a borehole of a well. The invention provides an apparatus that generates low-frequency seismic type elastic waves that propagate to the geologic formation and in order to enhance the movement of fluids in the geologic formation toward a well. The apparatus may operate automatically driven by a power source that may be located on the ground surface. The regime of operation may be determined by user input. Operation of the apparatus may carried out while production of a natural resource is ongoing.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: December 24, 2013
    Assignee: Technological Research Ltd
    Inventor: Alfredo Zolezzi-Garreton
  • Patent number: 8534353
    Abstract: The invention is directed to a hydraulic actuated pump system which lifts production fluids and re-circulating hydraulic fluid from a petroleum well. Additives may be added to the hydraulic fluid to apply direct chemical treatment to the production formation. A sonic stimulator may be included to stimulate and produce the same liquids from the horizontal section of the well.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: September 17, 2013
    Assignee: Canasonics Inc.
    Inventor: Emil William Groves
  • Patent number: 8517093
    Abstract: A system and method are provided for producing controlled vibrations within a borehole. In one example, the system includes an encoder plate, an anvil plate, and a movement mechanism configured to enable rotational and translational movement of the encoder plate relative to the anvil plate to allow the encoder plate to repeatedly impact the anvil plate to create vibrations. The system also includes a vibration control mechanism configured to control an amplitude of the vibrations.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: August 27, 2013
    Assignee: Hunt Advanced Drilling Technologies, L.L.C.
    Inventor: Todd W. Benson
  • Publication number: 20130153211
    Abstract: According to some embodiments, a borehole deployable apparatus is described that can be used to generate strong vibrations in a subterranean rock formation. In some embodiments, the apparatus accelerates a mass using mechanisms built into the tool and causes the mass to strike the borehole wall. The mechanisms can control the mass acceleration, and the frequency of strikes. In some embodiments, the apparatus is designed for use in the field of petroleum recovery where the vibrations are used to create or re-establish a flow rate for the fluids in the formation.
    Type: Application
    Filed: December 11, 2012
    Publication date: June 20, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Schlumberger Technology Corporation
  • Patent number: 8464790
    Abstract: Temperature and pressure measurements that are made downhole are used to predict a compressional wave velocity for pure water under downhole conditions. The predicted velocity and a measured compressional velocity of a formation brine are used in a non-iterative method to estimate a value of the formation brine salinity that is between 0 and 1.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: June 18, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Rocco DiFoggio
  • Publication number: 20130000886
    Abstract: A sonic oil recovery apparatus for use in a well has an injector tubing extending interior of the casing of the well, and a resonator tube affixed to or within the injector tubing. The resonator tube has an interior flow pathway so as to allow a fluid to flow therethrough from the injector tubing. The resonator tube is suitable for transmitting an acoustic signal approximately equal to the resonate frequency of a formation in the well. The resonator tube can have a plurality of orifices plates formed therein such that the fluid flowing through the resonator tube generates the acoustic signal. The resonator tube can alternatively be a solid state acoustic resonator therein.
    Type: Application
    Filed: August 9, 2012
    Publication date: January 3, 2013
    Inventors: Rick Alan MCGEE, Michael FRAIM
  • Publication number: 20120305240
    Abstract: A treatment device for treating liquids in oil, gas or water wells comprises an ultrasonic treatment device (1). The ultrasonic treatment device (1) includes a resonator (2), a transducer (9) and a matching transformer (10) for transferring a maximum of power from an ultrasonic generator to the transducer (9) through a long cable (11). The cable (11) has a considerable length of at least 3 km and is attached to a generator (5).
    Type: Application
    Filed: February 7, 2011
    Publication date: December 6, 2012
    Applicant: PROGRESS ULTRASONICS AG
    Inventor: Peter Solenthaler
  • Publication number: 20120227500
    Abstract: A method of generating an axial shear wave in a formation surrounding a wellbore comprising urging a clamp pad into contact with a wall of the wellbore, and applying an axial force to the clamp pad to impart a shear force into the wall of the wellbore to generate a shear wave in the formation.
    Type: Application
    Filed: August 17, 2010
    Publication date: September 13, 2012
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jennifer Market, Paul F. Rodney
  • Publication number: 20120211225
    Abstract: The method and apparatus for enhancing fluid removal from a fracture in a geologic formation by applying periodic/cyclic shock waves to the fracture in a formation surrounding a wellbore which has undergone fracturing. In accordance with the invention, the method includes the steps of arranging a device attached to the end of tubing inside the wellbore in the vicinity of said fracture for generating shock waves, providing a liquid via tubing into the device for generating shock waves with the amplitude Pa of shock waves determined by following expression: 0.3 MPa?Pa?1.4Pp?0.8?gH, where Pp is the formation pore pressure, ? is the formation density, g is a gravity acceleration, H is the depth of said fracture, Pa is the amplitude of the shock wave.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 23, 2012
    Inventors: Sergey A. Kostrov, William O. Wooden
  • Patent number: 8162078
    Abstract: Disclosed is an apparatus for vibrating a downhole drill string operable to have a drilling fluid pumped therethrough. The apparatus comprises a tubular body securable to the drill string and having a central bore therethrough, a valve in the tubular body for venting the drilling fluid out of the drill string and a valve actuator for cyclically opening and closing the valve. The method comprises pumping a drilling fluid down the drill string and cyclically venting the drilling fluid through the valve so as to cyclically reduce the pressure of the drilling fluid in the drill string. The valve may comprise a tubular body port and a corresponding rotor port selectably alignable with the tubular body port as the rotor rotates within the central bore. The valve actuator may comprise at least one vane on the rotor for rotating the rotor as the drilling fluid flows therepast.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: April 24, 2012
    Assignee: CT Energy Ltd.
    Inventor: Charles Abernethy Anderson
  • Patent number: 8113278
    Abstract: Disclosed is a system and method for enhanced oil recovery using at least one in-situ seismic energy generator for generating seismic acoustic waves. More particularly the system and method employ a downhole electro-hydraulic seismic pressure wave source to enhance the recovery of oil from reservoirs.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: February 14, 2012
    Assignee: Hydroacoustics Inc.
    Inventors: Robert F. DeLaCroix, Dennis R Courtright
  • Patent number: 8069914
    Abstract: The invention is directed to a hydraulic actuated pump system which lifts production fluids and re-circulating hydraulic fluid from a petroleum well. Additives may be added to the hydraulic fluid to apply direct chemical treatment to the production formation. A sonic stimulator may be included to stimulate and produce the same liquids from the horizontal section of the well.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: December 6, 2011
    Assignee: Canasonics Inc.
    Inventor: Emil William Groves
  • Patent number: 8047282
    Abstract: The present disclosure is directed to a system and method for sonically activating cement slurries. In some implementations, a method of treating a subterranean formation includes positioning a settable composition including a capsule in a wellbore. The capsule is used to increase a setting rate in response to at least sonic signals. A sonic signal is transmitted to at least a portion of the settable composition to release an activator from the capsule.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: November 1, 2011
    Assignee: Halliburton Energy Services Inc.
    Inventors: Sam Lewis, Priscilla Reyes, Vijay Gupta, Brian R. Stoner, Anthony Badalamenti
  • Patent number: 7950451
    Abstract: Methods and apparatus are described that combine a measurement of the physical velocity of material within the annulus of a well between the drill pipe and the wall of the well with a measurement of the area of the flow as determined from a measurement of distance between the drill pipe and the wall of the hole to determine the actual material volumetric flow rate. Changes in volumetric flow rate at one or more points along the well can be used to determine the occurrence and location of well dysfunctions. This knowledge can then be used to make decisions about treating well dysfunctions which will lead to more efficient use of drilling rig time.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: May 31, 2011
    Assignee: BP Corporation North America Inc.
    Inventor: Mark W Alberty
  • Patent number: 7909094
    Abstract: A system for oscillating compressible working fluid in a wellbore defined in a subterranean formation includes a fluid supply and a fluid oscillator device. The fluid supply communicates compressible working fluid into a conduit disposed within the wellbore. The fluid oscillator device is configured to reside in the wellbore. The fluid oscillator device includes an interior surface that defines an interior volume of the fluid oscillator device, an inlet into the interior volume, and an outlet from the interior volume. The interior surface is static during operation to receive the compressible working fluid into the interior volume through the inlet and to vary over time a flow rate of the compressible working fluid from the interior volume through the outlet.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: March 22, 2011
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Travis W. Cavender, Robert L. Pipkin, Daniel D. Gleitman
  • Publication number: 20100290312
    Abstract: An apparatus for use in a wellbore is provided that in one embodiment may include at least one transmitter configured to generate acoustic signals in the wellbore, at least one receiver configured to receive acoustic signals from a formation surrounding the wellbore in response to the transmitted acoustic signal and also configured to provide electrical signals representative of the received acoustic signals, a circuit configured to apply a time-variable gain to the electrical signals to amplify the electrical signals, and a processor configured to process the amplified electrical signals and provide a property of interest.
    Type: Application
    Filed: May 14, 2009
    Publication date: November 18, 2010
    Applicant: Baker Hughes Incorporated
    Inventors: James Domnanish, Paul Lowson
  • Patent number: 7823638
    Abstract: The present invention relates to a sound source for the stimulation of an oil reservoir or an oil well for enhanced oil recovery or for seismic logging of the reservoir. The sound source is operated by a pressurized gas from a compressor or a pressure tank on the surface, and the gas is transported to an in the sound source situated cylinder with an accumulator, via a feed line.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: November 2, 2010
    Assignee: Carbon Oil ASA
    Inventor: Olav Ellingsen