With Specific Downhole Feature Patents (Class 166/177.2)
  • 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
  • Patent number: 7690437
    Abstract: A method of constructing a well comprising a borehole drilled through underground formations, comprises: positioning at least one device on the outside of the tubular string (e.g. a drill string or casing string), the device being operable to move between first and second configurations; positioning a tubular string in the borehole with the device positioned in the annular space between the tubular string and the borehole wall in its first configuration so as to interact with the tubular string and the borehole while allowing borehole fluid to flow along the annular space and around the device; and operating the device so as to move it from its first configuration to expand into its second configuration in which it substantially fills at least part of the annular space so as to inhibit flow of fluids along the borehole in the space.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: April 6, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Dominique Guillot, Geoffrey Maitland, Iain Cooper
  • Patent number: 7628202
    Abstract: A method and apparatus control a plurality of sonic sources to generate sound waves within at least one opening of an item. The “item” can comprise almost anything that has a percolation path (a path where solid particles are to be separated from liquid particles), such as the ground, aggregates, porous structures, porous materials, and a semi-solid structure. By controlling the sonic sources, the method transmits the sound waves to the percolation path. Further, the method regulates the amplitude and frequency of the sound waves such that the liquid particles oscillate out of phase with the solid particles. The method also regulates the phases of the sound waves generated by the different sonic sources so as to control locations within the percolation path where the liquid particles oscillate out of phase with the solid particles.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: December 8, 2009
    Assignee: Xerox Corporation
    Inventor: Robert Jay Meyer
  • Publication number: 20090218100
    Abstract: The invention relates to a wellbore cleaning assembly, wellbore cleaning apparatus comprising a wellbore cleaning assembly, and to a method of cleaning a wellbore. In an embodiment of the invention, a wellbore cleaning assembly (10) is disclosed which is run into a wellbore (14) to be cleaned on a work string (20). The cleaning assembly (10) comprises a number of cleaning elements (24, 26, 28, 30) for cleaning a wall (22) of the wellbore (14); and an oscillator (36) coupled to the at least one cleaning element (24, 26, 28, 30), for generating an oscillating movement of the at least one cleaning element (24, 26, 28, 30) relative to the work string (20).
    Type: Application
    Filed: March 23, 2007
    Publication date: September 3, 2009
    Applicant: SPECIALISED PETROLEUM SERVICES GROUP LIMITED
    Inventor: Glynn Williams
  • Publication number: 20090200019
    Abstract: Disclosed are systems and methods for generating seismic acoustic waves, and more particularly a downhole electro-hydraulic seismic pressure wave source to enhance oil recovery.
    Type: Application
    Filed: February 10, 2009
    Publication date: August 13, 2009
    Applicant: Hydroacoustics Inc.
    Inventors: Robert F. DeLaCroix, Dennis R. Courtright
  • Publication number: 20090114396
    Abstract: Disclosed is a device, method and system for a measurement while producing (MWP) and flow throttling (FTD) device for placement in a pipe with liquid or gas flowing through it such as an oil or gas well's wellhead, casing, tubing, or horizontal or lateral passage which is responsive to the flow of fluid through it. The MWP/FTD device can create pressure pulses through the production fluid or otherwise send signals to provide bit data that are read and analyzed at the wellhead or externally thru wireless communications. The data analysis provides information regarding pressure, fluid flow, and type of fluid/gas flowing primarily within the lateral passages or generally anywhere the MWP/FTD is situated. The device helps identify whether the pipe, lateral or other passage should remain open, closed or restricted.
    Type: Application
    Filed: November 5, 2007
    Publication date: May 7, 2009
    Inventors: David John Kusko, Gabor Vecseri, Daniel Maurice Lerner
  • Publication number: 20090090503
    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: Application
    Filed: October 6, 2008
    Publication date: April 9, 2009
    Applicant: CANASONICS INC.
    Inventor: Emil William Groves
  • Publication number: 20090033176
    Abstract: A technique is provided by which energy is physically/mechanically transmitted down through a wellbore. The transmitted energy is directed downhole along a fluid channel and impinges on an energy converter positioned in the wellbore or at another subterranean location. The energy converter converts the physical energy into electrical energy that can be supplied to a downhole device.
    Type: Application
    Filed: July 30, 2007
    Publication date: February 5, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Songming Huang, Thomas D. MacDougall, Benjamin P. Jeffryes
  • Patent number: 7367392
    Abstract: Wellbore apparatus including an elongated tubular adapted for disposal within the wellbore. The tubular having an elongated recess formed on its exterior surface along the longitudinal axis. The recess is adapted to accept and house a component therein. A shield disposed within the recess and adapted to slide to a selected position therein, covering a housed component. The sliding shield and housed component are retained within the recess by a retainer system using minimal fasteners.
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: May 6, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Khanh Duong, Jean Pierre Masson, Fernando Garcia-Osuna, Harold Pfutzner, Alain Dumont, Tetsuya Tanaka
  • Patent number: 7360596
    Abstract: The invention relates to a method for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers (W) in the underground extraction areas (F) of wells and other production drill holes (11) wherein liquid is continuously pumped away in the extraction area (F) of the drill hole (11) by means of an underground pump (8). The liquid which is thus displaced is successively impinged upon with hydraulic energy pulses (E) in the direction of the walls of the drill hole, filter bodies and filter layers (W) by continually moving a pulse generator (1) up and down in the area of extraction (F) The effect of each energy pulse (E) is evaluated by means of seismic measurements and the parameters of the following energy pulses (E) are determined according to the evaluation of the measuring result of the previous energy pulse (E).
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: April 22, 2008
    Inventors: Alexander Steinbrecher, Karsten Kahle
  • Patent number: 7350567
    Abstract: A coalbed methane production method comprises acoustic radiators strategically placed within exhaust boreholes that sonically vibrate the immediate wall areas. The gas volume output that can be realized by an exhaust well is mainly determined by the penetrability of the inside faces of the borehole. Such inside faces behave like a filter matrix, and the important areas involved in restricting the gas flow the most are not more than a few diameters away from the exhaust well in the collector zone. Therefore, the more permeable that such immediate area around the exhaust borehole can be made, the higher will be the volume of gas produced. Strong sonic vibrations from the acoustic radiators positioned in a drillstring shake open spaces in the media for the gas to flow out and be collected. The media experiences a type of elastic collapse under the differential pressures that are exerted the strongest near the borehole opening.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: April 1, 2008
    Inventors: Larry G. Stolarczyk, Dimitri A. Kas'yanov
  • Patent number: 7318471
    Abstract: A system and method for determining blockage in a wellbore containing fluid and/or in a formation adjacent the wellbore, according to which energy is generated in the fluid and variables associated with the energy are measured.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: January 15, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul F. Rodney, Jeroen J. Groenenboom, Wei Han, James R. Birchak, Denis P. Schmitt, Tim W. Geerits, Eugene J. Linyaev
  • Patent number: 7264056
    Abstract: A method for mitigating the deposition of wax on production tubing walls. The method comprises positioning at least one ultrasonic frequency generating device adjacent the production tubing walls and producing at least one ultrasonic frequency thereby disintegrating the wax and inhibiting the wax from attaching to the production tubing walls. A system for mitigating the deposition of wax on production tubing walls is also provided.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: September 4, 2007
    Assignee: University of Wyoming
    Inventor: Brian F. Towler
  • Patent number: 7264055
    Abstract: An apparatus for applying a force to a stuck object in a wellbore that includes a work string extending in the wellbore is provided. A vibrating string has a vibrator engaged with the stuck object. The vibrator drives the vibrating string to impart the force to the stuck object. An isolator associated with the work string and the vibrating string decouples a portion of a motion of the vibrating string from the work string. A method of applying a force to a stuck object in a wellbore is provided that includes comprises extending a work string in the wellbore from a surface location. A vibrating string is engaged with the stuck object. The vibrating string is driven at a frequency to apply the force to the stuck object. The work string is isolated from the vibrating string such that a portion of the motion of the vibrating string is decoupled from the work string.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: September 4, 2007
    Assignee: Baker Hughes Incorporated
    Inventors: Rustom K. Mody, Mohan L. Soni, Carl W. Stoesz
  • Patent number: 7201231
    Abstract: The apparatus includes a pump for circulating pressurized fluid in a wellbore. A control device controls the pump which a conduit interconnects to the wellbore. A downhole transducer detects changes in fluid pressure at a downhole location and generates signals accordingly. A processor generates actuator commands based on the signals. Actuators activate a downhole tool based on the actuator command. A modulating valve modulates the fluid pressure. A remote transducer detects the pressure remotely from the downhole transducer. The control device causes the pump to generate acoustic signals in the fluid via wave forms which the downhole transducer detects. The modulating valve generates wave forms in the fluid. The control device sends control signals via the fluid to the downhole transducer. Consequently the processor actuates the tools. Following correct actuation the modulating valve generates signals via pressure changes which the remote transducer receives to indicate successful tool deployment.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: April 10, 2007
    Assignee: Reeves Wireline Technologies Limited
    Inventors: Michael John Chaplin, Charles Richard Easter, Michael Charles Spencer
  • Patent number: 7063144
    Abstract: An electro acoustic device and related method for increasing the production capacity of wells that contains oil, gas and/or water is disclosed. The electro acoustic device is submerged in the well producing zone, and includes an electric generator, one or more electro acoustic transducers, and one or more wave guide systems (sonotrodes) that include radiators which transmit vibrations into the medium under treatment. The electro acoustic device produces vibrations that stimulate the occurrence of mass transfer processes within the well. According to one or more embodiments, shear vibrations are produced in the well bore region due to the phase displacement of mechanical vibrations produced along the axis of the well, achieving alternate tension and pressure due to the superposition of longitudinal and shear waves.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: June 20, 2006
    Assignee: Klamath Falls, Inc.
    Inventors: Oleg Abramov, Vladimir Abramov, Alfredo Alejandro Zolezzi-Garreton, Luis Orlando Paredes Rojas, Andrey Pechkov
  • Patent number: 7059403
    Abstract: An electro acoustic device and related method increase production capacity of wells that contain oil, gas and/or water. The electro acoustic device produces vibrations stimulating occurrences of mass transfer processes within the well. The resultant acoustic flow generated in porous media, produced by superposition of longitudinal and shear waves, is developed over a characteristic frequency threshold value specific to water, normal oil and heavy oil, with an acoustic energy density capable of establishing higher fluidity zones in the porous media, promoting mobility and recovery of desired fluid and formation damage reduction in a wellbore.
    Type: Grant
    Filed: November 11, 2004
    Date of Patent: June 13, 2006
    Assignee: Klamath Falls, Inc.
    Inventors: Mario Arnoldo Barrientos, Oleg Abramov, Vladimir Abramov, Andrey Pechkov, Alfredo Zolezzi-Garreton, Luis Paredes-Rojas
  • Patent number: 7059413
    Abstract: In the oil-producing industry, an apparatus can be used to increase the yield of oil wells developed by conventional methods during production of high viscosity oils. Use of the apparatus results in an increase in the permeability of a reservoir and a reduction in the viscosity of oil, added to an increase in environmental safety by avoiding use of chemical reagents and steam generators. The apparatus applies a high power ultrasonic field in the well bottom zone that reduces viscosity of oil, also heating the well bottom zone. The apparatus comprises a surface ultrasonic generator and at least one ultrasonic magnetostrictive radiator placed at the end of oil well tubing, using high frequency currents that warm the tubing and maintain the viscosity of oil during transport to the surface.
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: June 13, 2006
    Assignee: Klamath Falls, Inc.
    Inventors: Oleg Abramov, Vladimir Abramov, Andrey Pechkov, Alfredo Zolezzi Garreton, Luis Paredes-Rojas
  • Patent number: 7025143
    Abstract: The pressure reading tool includes a housing with an interior chamber and an orifice extending from the chamber to the exterior of the housing. A pulse member with a magnetostrictive ring and an excitation source are disposed within the chamber to produce a highly agitated fluid discharge through the orifice. The magnetostrictive ring, chamber volume, and orifice cooperate to induce Helmholtz resonance frequencies in the fluid in the chamber to thereby enhance the agitation of the fluid discharge. A sheathing encapsulates the pulse member to protect it from contact with the fluid. A dampening element is also interposed between the pulse member and housing to isolate vibration.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: April 11, 2006
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Peter Masak