Through Drill String Or Casing Patents (Class 367/82)
  • Patent number: 10330819
    Abstract: The wettability of a formation may be estimated using a multi-frequency dielectric measurement tool. Multi-frequency dielectric dispersion measurements are made using the multi-frequency dielectric measurement tool on a sample. The bulk density and the total porosity of the sample are also otherwise acquired. The bulk density, matrix permittivity, total porosity, and multi-frequency dielectric dispersion measurements are input into a petrophysical dielectric model and the petrophysical dielectric model is applied to obtain inversion results. A wettability state of the sample is determined using the inversion results and one or more reservoir management decisions are made based on the determined wettability state of the sample. A non-transitory, computer-readable storage medium may be provided that has stored on it one or more programs that provide instructions.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: June 25, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Khaled Hadj-Sassi, Mohammed Badri
  • Patent number: 10246977
    Abstract: A system for providing artificial lift to wellbore fluids having solid buildup removal capabilities includes a pump submerged in wellbore fluids and in fluid communication with a tubular member extending within a wellbore. The pump is oriented to selectively boost a pressure of the wellbore fluids traveling from the wellbore towards an earth's surface. A motor is located within the wellbore providing power to the pump. A seal assembly has a first side connected to the motor and a second side connected to the pump, wherein the pump, the motor and the seal assembly together form a submersible pump string. An ultrasonic device is connected to the submersible pump string and operable to produce pressure waves.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: April 2, 2019
    Assignee: Saudi Arabian Oil Company
    Inventors: Jinjiang Xiao, Rafael Adolfo Lastra, Randall Shepler
  • Patent number: 10208590
    Abstract: A communication method is provided for a communication system comprising a transmitter and a receiver. The method involves communicating data from the transmitter to the receiver over a banded communication channel. The method comprises: applying a forward error correction, FEC, code to data to be transmitted to obtain FEC-encoded data; assigning the FEC-encoded data into a plurality of sub-channels; modulating the data from each of the plurality of sub-channels into a corresponding one of a plurality of sub-bands, the plurality of sub-bands having spaced apart center frequencies; and concurrently transmitting the data from the plurality of sub-bands onto a banded communication channel, the banded communication channel comprising one or more pass-bands and one or more stop-bands.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: February 19, 2019
    Assignee: Cold Bore Technology Inc.
    Inventors: Aryan Saed, William Dean Warner
  • Patent number: 10202845
    Abstract: A system includes a distributed acoustic sensing (DAS) optical fiber configured to be disposed with a downhole component, an interrogation device including an optical signal source configured to inject an optical signal into the DAS optical fiber and a receiver configured to detect return signals reflected from sensing locations in the fiber, and an acoustic telemetry unit configured to receive a communication from the downhole component and generate an acoustic signal having a frequency within a selected frequency range and encoded to carry the communication, the acoustic signal applied to a first section of the DAS optical fiber. The system also includes a processor configured to associate a first portion of the return signals with the first section and reproduce the communication based on the first portion, and associate a second portion of the return signals with a second section of the fiber and detect one or more acoustic events.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: February 12, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Erik N. Lee, Jesse J. Howard
  • Patent number: 10082018
    Abstract: A system that is positionable in a wellbore can include a chain of transceivers that are positionable external to a casing string. Each transceiver in the chain of transceivers can be operable to transmit a wireless signal using a separate frequency guard band that is assigned to that transceiver and to receive wireless signals using another frequency guard band assigned to a prior transceiver in the chain of transceivers.
    Type: Grant
    Filed: March 11, 2015
    Date of Patent: September 25, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Mark W. Roberson
  • Patent number: 9933538
    Abstract: A method and system for enhancing the signal quality of received signals generated by acoustic tools by factoring in feedbacks from the rig operations in an adaptive optimization process. The system may include a transmitter driver circuit and transmitters which can implement signal transmission at selected power, mode and waveforms. The selected power, mode and transmit waveforms may further be generated in the system by making optimal calculations based on realtime information from the downhole data regarding the formation and borehole characteristics.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: April 3, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Chin Wee Lim
  • Patent number: 9920622
    Abstract: A range of apparatus and methods for providing local and long range data telemetry within a wellbore is described. These apparatus and methods may be combined in a wide variety of ways. In some embodiments data is transmitted across a gap in a drill string using signals of a higher frequency for which an electrical impedance of the gap or of a filter connected across the gap is low. Low-frequency EM telemetry signals may be applied across the gap. The gap and any filter connected across the gap present a high impedance to the low-frequency EM telemetry signals. The described technology may be applied for transferring sensor readings between downhole electrical packages. In some embodiments sensors are electrically connected across electrically insulating gaps in the drill string.
    Type: Grant
    Filed: September 5, 2013
    Date of Patent: March 20, 2018
    Assignee: Evolution Engineering Inc.
    Inventors: David A. Switzer, Aaron W. Logan, Jili (Jerry) Liu, Mojtaba Kazemi Miraki
  • Patent number: 9822636
    Abstract: Pulse telemetry systems and methods for communicating digital data from a wellbore to a surface unit are presented that include a valve fluidly coupled to drilling fluid. The valve adjusts pressure in a drillpipe to cause pressure transitions within the drilling fluid within the drillpipe to transmit data over the drilling fluid. The valve includes a voice coil actuator for developing the pressure transitions within the drilling fluid. Other systems and methods and are included.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 21, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jianying Chu
  • Patent number: 9790785
    Abstract: An echo communication system has a plurality of triggers disposed within a first distance of each other and a hub separated from the plurality of triggers by at least a second distance that is greater than the first distance. The hub is configured to wirelessly transmit a signal intended for one of the triggers and each of the triggers will re-broadcast the same signal if they are not the intended recipient.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: October 17, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Michael Linley Fripp, Donald Kyle, Gregory Thomas Werkheiser, Scott Miller
  • Patent number: 9784098
    Abstract: Pulse telemetry systems and methods for communicating digital data from a wellbore to a surface unit are presented that include a valve fluidly coupled to drilling fluid. The valve adjusts pressure in a drillpipe to cause pressure transitions within the drilling fluid within the drillpipe to transmit data over the drilling fluid. The valve includes a voice coil actuator for developing the pressure transitions within the drilling fluid. Other systems and methods and are included.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: October 10, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Jianying Chu
  • Patent number: 9645266
    Abstract: The resonant frequency of an example transducer can be adjusted by changing the effective mass of a backing mass using a tuning module. The tuning module includes a electrical source, a switch, and an electromagnetic coil connected in series as an electrical circuit. The electromagnetic coil is mechanically attached to the backing mass, and is disposed within a reservoir of a magneto-rheological fluid enclosed within a casing. When the switch is closed, the electrical source applies a voltage and current to the electromagnetic coil, and induces a localized magnetic field within the magneto-rheological fluid. In response to this localized magnetic field, the magneto-rheological fluid increases in viscosity, assumes properties comparable to a viscoelastic solid, and become affixed to the electromagnetic coil. As the electromagnetic coil is mechanically attached to the backing mass, the solidified magneto-rheological fluid increases the effective mass of the backing mass.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: May 9, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Li Gao, Vimal V. Shah
  • Patent number: 9534486
    Abstract: Time is tracked in a downhole tool to indicate whether timestamps associated with data samples or events in a log indicate either real time or a duration of time since a certain reset, and to indicate whether the timestamps have been synchronized with a master clock in the tool. The log also records the time and offset of each synchronization event. A computer processes the log to convert all of the timestamps to real-time values and to indicate timestamps that have been estimated and timestamps that were never synchronized to a master clock in the tool. The computer determines an associated uncertainty for each of the estimated timestamps.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 3, 2017
    Assignee: HALLIBURTON ENERGY SERVICES INC.
    Inventors: John Leslie Wisinger, Jr., Ranganathan Sridharan
  • Patent number: 9465128
    Abstract: Procedures are described for monitoring dynamics along a drill string during the drilling process using only surface instrumentation or using a combination of surface and downhole instrumentation. Events such as drill collar whirl may be identified from signatures found in signals generated by an electromagnetic sensor such as a magnetometer and/or from a mechanical sensor such as accelerometer. Additional embodiments are described.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: October 11, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Paul F. Rodney
  • Patent number: 9441479
    Abstract: A subsea installation kit is described. The kit is provided with a subsea tree, a plurality of tubing sections, a plurality of acoustic repeaters and a mechanical filter. The subsea tree is configured to be coupled to a subsea well having a wellbore. The tubing sections are configured to be connected together to form a tubing string extending from above the tree into the wellbore. The acoustic repeaters are configured to be attached to the tubing string in a spaced apart manner. One of the acoustic repeaters is a last acoustic repeater configured to be attached to the tubing string within or above the tree. The mechanical filter is configured to be connected into the tubing string and form a part of the tubing string above the last acoustic repeater, the mechanical filter configured to cause an attenuation to acoustic signals propagating in the tubing string above the tree.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: September 13, 2016
    Inventors: Benoit Froelich, Stephane Vannuffelen, Christophe M. Rayssiguier
  • Patent number: 9291049
    Abstract: A measurement-while-drilling (MWD) telemetry system comprises a downhole MWD telemetry tool comprising a mud pulse (MP) telemetry unit and an electromagnetic (EM) telemetry unit. The MWD telemetry tool can be configured to transmit data in an EM-only telemetry mode using only the EM telemetry unit, in an MP-only mode using only the MP telemetry unit, or in a concurrent telemetry mode using both the EM and MP telemetry units concurrently. When transmitting data in the concurrent telemetry mode, the telemetry tool can be configured to transmit in a concurrent confirmation mode wherein the same telemetry data is transmitted by each of the EM and MP telemetry units, or in a concurrent shared mode wherein some of the telemetry data is transmitted by the EM telemetry unit, and the rest of the telemetry data is transmitted by the MP telemetry unit. The telemetry tool can be programmed to change its operating telemetry mode in response to a downlink command sent by an operator at surface.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: March 22, 2016
    Assignee: Evolution Engineering Inc.
    Inventors: David A. Switzer, Jili Liu, Aaron William Logan, Mingdong Xu
  • Patent number: 9062535
    Abstract: A wireless modem for communication in a network of wireless modems via a communication channel includes a transceiver assembly, transceiver electronics and a power supply. The transceiver electronics include transmitter electronics, receiver electronics and at least one processing unit. The transmitter electronics cause the transceiver assembly to send wireless signals into the communication channel. The receiver electronics decode signals received by the transceiver assembly.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: June 23, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Carlos Merino, Laurent Alteirac
  • Patent number: 9063251
    Abstract: The present disclosure is related to methods and apparatuses for acoustic velocity well logging. The method may include estimating a magnitude of a principal horizontal stress in a borehole in a formation. The method may include obtaining a far field stress orientation and making a measurement of near borehole stress orientation. The present disclosure also includes an apparatus configured to be conveyed into a borehole and perform the method. Formation stresses and directions may be estimated.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: June 23, 2015
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Daniel Moos
  • Patent number: 9042200
    Abstract: A downhole telemetry system usable with a subterranean well comprises at least one pressure pulse generator, at least one pressure transmitter located in an internal tube space in the well and at least one pressure transmitter located in a tubing annulus. The system comprises a packer providing hydraulic isolation of the tubing annulus and at least one transmitter located below the packer and responding to at least one physical quantity characterizing a bottom-hole zone. The system also includes a data encoder located below the packer to read out the transmitter located below the packer and to respond to at least one physical quantity characterizing the bottom-hole zone, a pressure pulse modulator to modulate pressure pulses generated by the pressure pulse generator, a surface-mounted data-collection unit to converts the output data of the transmitters and to provide a surface-mounted data decoder with data for analysis.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: May 26, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Arkadiy Yurievich Segal
  • Publication number: 20150131410
    Abstract: A method of signal processing includes providing at least a first pressure sensor and a second pressure sensor spaced in a drilling system and using an algorithm to separate the downwardly propagating waves from the upwardly propagating waves. In one or more examples, an algorithm may include determining a velocity of pressure signals in a wellbore, time-shifting and stacking pressure signals from at least the first pressure sensor and the second pressure sensor to determine a downwardly propagating noise signal, and subtracting the downwardly propagating noise signal from at least the signal from the first pressure sensor.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Inventor: Brian Oliver Clark
  • Patent number: 9019798
    Abstract: A pressure-balanced acoustic-signal-receiving apparatus and methods therefor. The apparatus may comprise a first housing, a first actuator, a second housing, and a second actuator. The first housing may comprise a fluid chamber, a passage connecting a first and second portion of the fluid chamber, a tubular-contact assembly, an isolating member within the fluid chamber and coupled to the assembly, an acoustic-signal receiver within the isolating member and coupled to the assembly, and a communication member coupled to the receiver. A method for receiving an acoustic signal generated within a wellbore may comprise receiving the acoustic signal with a tubular-contact assembly, sensing the acoustic signal with an acoustic-signal receiver positioned within a fluid chamber and coupled to the assembly, equilibrating fluid pressures in the first and second portions of the fluid chamber, and transmitting information generated by the acoustic-signal receiver through a communication member.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: April 28, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Robert Brice Patterson, Stephen E. Tilghman, Dustin Robert Holden, John Patrick Rodgers
  • Patent number: 9013957
    Abstract: An apparatus, method, and system described for generating pressure pulses in a drilling fluid utilizing a flow throttling device longitudinally and axially positioned within the center of a main valve actuator assembly is described. The main valve actuator assembly includes a main valve pressure chamber, a magnetic cup encompassing a rotary magnetic coupling, and a pilot actuator assembly.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: April 21, 2015
    Assignee: Teledrill, Inc.
    Inventors: Gabor Vecseri, Benjamin Jennings
  • Patent number: 9007231
    Abstract: A system and method to synchronize distributed measurements in a borehole are described. The system includes a plurality of wired segments coupled together by couplers and a plurality of nodes configured to measure, process, or relay information obtained in the borehole to a surface processing system, each of the plurality of nodes comprising a local clock and being disposed at one of the couplers or between couplers. The system also includes a surface processing system coupled to a master clock and configured to determine a time offset between the master clock and the local clock of an nth node among the plurality of nodes based on a downhole generated synchronization signal.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: April 14, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: John D. Macpherson
  • Publication number: 20150085611
    Abstract: An embodiment of a monitoring system for inspecting underground well structures includes a transmitter, a receiver, a processing module, and a power supply. The monitoring system is used to monitor pipe casings and structures surrounding the exterior of the pipe casings of a well. During operation, the transmitter directs time dependent energy radially towards a portion of a pipe casing, and the receiver measures energy that is returns to the system. The processing module amplifies, digitizes, and analyses the measurements of energy to produce monitoring information regarding the well structures.
    Type: Application
    Filed: June 19, 2013
    Publication date: March 26, 2015
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Batakrishna Mandal
  • Patent number: 8988969
    Abstract: Evaluating utilities involves generating an acoustic or seismic source signal, communicating the source signal to a first underground utility, moving a receiver through a second underground utility situated in proximity to the first utility, and monitoring for a cross bore involving the first and second utilities in response to receiving the source signal emanating from the first utility as the receiver progresses through the second utility. Utility evaluation may further involve detecting a cross bore involving the first and second utilities using monitoring data acquired by the receiver.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: March 24, 2015
    Assignee: Underground Imaging Technologies, Inc.
    Inventors: Mark Wallbom, Gary Young
  • Patent number: 8982667
    Abstract: A stacked-ring, slow-wave acoustic telemetry isolation system and method for use with tubular assemblies such as drillpipe or production tubing comprising an acoustic wave transmitter, the acoustic isolator behaving such that a “down” wave propagated toward the isolator is reflected back substantially in phase with an “up” wave propagated from the acoustic wave source away from the isolator. The acoustic isolator is similarly effective in reflecting “up” propagating waves originating from below the isolator, hence further protecting the acoustic wave source from possible deleterious interference. It causes substantially all of the emitted wave energy to travel in a chosen direction along the drill pipe, thus aiding the efficiency of acoustic telemetry said pipe.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: March 17, 2015
    Assignee: Xact Downhole Telemetry, Inc.
    Inventors: Paul L. Camwell, David D. Whalen, Douglas S. Drumheller
  • Patent number: 8981586
    Abstract: A magnetostrictor assembly (100) includes a magnetostrictor element (105), a conductor coupled to the magnetostrictor element, and a bluff body (101) coupled to the magnetostrictor element via a transfer arm (103). The bluff body is to be placed in a fluid flow path to, at least in part, produce motion that, at least in part, causes strain in the magnetostrictor element. A preload mechanism comprising a control circuit (1100) may optimize a magnetostrictive generator.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: March 17, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Paul F. Rodney, Michael Fripp
  • Patent number: 8976017
    Abstract: A method for inspecting down hole drilling systems for identifying indications of flaws in material. The method can include removing particulate, disposing a wave coupling medium on an area of interest, attaching a probe to a sound carrying wedge, engaging the sound carrying wedge over the wave coupling medium, transmitting inspection signals to the area of interest, manipulating the probe to produce detection signals, transmitting the detection signals to a data storage, presenting the detection signals and a known reference level to a user, and comparing the detection signals to the known reference level to determine if the detection signals are within a standard deviation of the known reference level. The method can include adapting a sound carrying wedge to form-fittingly couple to an area of interest of a down hole drilling system.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 10, 2015
    Inventor: Shawn Paul Cannon
  • Patent number: 8950480
    Abstract: A downhole tools deployment apparatus is disclosed. In an embodiment, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. The embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Dennis A. Strickland
  • Patent number: 8953412
    Abstract: An assembly using an onboard controller employs sensors to precisely determine the landing status of downhole logging tools. A control algorithm of the onboard controller can enable an intelligent management of the battery system and memory system of the logging tools. Sensors are used to verify landing having been reached. The sensors may include a real time clock, a pressure sensor, a temperature sensor, and a proximity/position sensor. The sensors can send measurement signals to the controller for determining if the measurement values are within an acceptable range indicating the logging tools having landed. As a correct landing has been confirmed or verified, the controller can trigger an onset for data logging (e.g., powering up the battery system and/or memory system). A method of determining landing of a logging tool in a wellbore is disclosed.
    Type: Grant
    Filed: December 26, 2012
    Date of Patent: February 10, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yuanhang Chen, Wei Sun, Andrew Albert Hrametz
  • Publication number: 20150023137
    Abstract: A system for producing controlled vibrations within a borehole comprises a vibration mechanism an impact to produce a plurality of vibration beats. The vibration mechanism is located substantially near a bottom hole assembly within the borehole. A damping mechanism selectively damps the vibration beats to encode information therein. The damping mechanism is located remotely from the vibration mechanism along a drill string of the bottom hole assembly.
    Type: Application
    Filed: October 7, 2014
    Publication date: January 22, 2015
    Inventor: TODD W. BENSON
  • Publication number: 20150003202
    Abstract: A method and apparatus for generating, propagating, encoding, decoding, modulating and detecting acoustic signals in a well borehole that comprises a signal generator (10) located at a first location for generating an acoustic source signal; a medium for the propagation the acoustic source signal to a second location and the propagation of the reflections and partial reflections of acoustic signals as it propagates through the medium; an apparatus to remove a detectable amount of energy from propagated acoustic signals; a controllable signal modulator (11) for attenuating the transmitted acoustic source signal; and a receiver (12) for receiving the modulated acoustic signals reflected, partially reflected or both by at least one reflector respectively located at one or more other locations.
    Type: Application
    Filed: January 4, 2013
    Publication date: January 1, 2015
    Inventors: Tim Palmer, David Tegerdine, Edward Bean, Fernando Rodriguez Llorente, David Martin Pooley
  • Patent number: 8902077
    Abstract: A subsea communication system is used to communicate between a position that is proximal to a surface of the sea and an apparatus of the seabed. The subsea communication system includes an umbilicalless communication system.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: December 2, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Roderick MacKenzie, John A. Kerr, Alan J. Johnston
  • Patent number: 8893822
    Abstract: An apparatus and method of performing a wellbore operation. The apparatus includes a drill bit that has a cavity at an end thereof and a communication device placed in the cavity. The communication device includes a first section and a second section. An outer dimension of the second section is greater than an outer dimension of the first section. The second section includes a conduit configured to allow passage of a conductor from the drill bit to a location outside the drill bit so as to provide a direct connection of the conductor from the drill bit to an element outside the drill bit.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: November 25, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Tu Tien Trinh, Eric Sullivan
  • Patent number: 8890710
    Abstract: An electromagnetic telemetry repeater. At least some of the illustrative embodiments are methods comprising inducing an electrical signal along a metallic tubular (the electrical signal carrying the information and the inducing within a borehole beneath the ocean floor), sensing an electric field proximate to the ocean floor, sensing a magnetic field proximate to the ocean floor, recreating the information using one sensed field as indicative of the information and the other sensed field as indicative of the noise, and sending the information toward the ocean surface.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: November 18, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Paul F. Rodney
  • Patent number: 8872670
    Abstract: A communication system for communicating information with a compliant medium is disclosed, the communication device includes a constrained fluid, a valve, a modulator, a sensor and a demodulator. The constrained is fluid distributed along a length. The valve is configured to operatively engage a second point relative to the length. The modulator configured to actuate the valve according to information. The sensor configured to measure pressure at a first point relative to the length, where the first point is distant from the second point. The demodulator is coupled to the sensor to recover the information.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: October 28, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Benjamin Peter Jeffryes
  • Publication number: 20140307527
    Abstract: A method and assembly to produce data pulses in a drilling fluid in a drill string. The assembly comprises a shear valve that includes a valve member mounted in a valve passage in fluid flow communication with a fluid flow conduit of a drill string to which the assembly is connectable. The valve member is connected to a reciprocation mechanism comprising a rocker, a driven crank arrangement, and a slider member that provides a sliding coupling between the crank arrangement and the rocker. The slider member is pivotally connected to the crank arrangement, is keyed to the rocker for angular displacement about a valve axis, and is radially slidable relative to the rocker, so actuation of the crank arrangement causes angular reciprocation of the rocker, and hence of the valve member, about the valve axis, to produce data pulses in the drilling fluid.
    Type: Application
    Filed: November 14, 2011
    Publication date: October 16, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Mark Anthony Sitka
  • Publication number: 20140233353
    Abstract: The present invention concerns a method and a well string element for transmitting data in a well. The well string element (20c) includes an elongated body (80) that defines a through channel (110) and also includes a side pocket (92) that is open to ambient (91); and an acoustic modem (60) provided in the pocket (92) and configured to emit acoustic waves. The acoustic modem (60) is configured to receive electrical signals from one or more sensors (50, 52), transform the electrical signals into the acoustic waves and emit the acoustic waves into a wall (112) of the elongated body (80) when receiving an acoustic wake-up call from a device (70) outside the drill string element (20c).
    Type: Application
    Filed: September 25, 2012
    Publication date: August 21, 2014
    Inventors: Nicolas Bravard, Pascal Coince
  • Patent number: 8789620
    Abstract: The invention provides a method of receiving and/or transmitting information in a well drilled in a geological formation between a first location and a second location, the well comprising a casing communicating with the geological formation. The method comprises placing a first transducer at a first location, placing a second transducer at a second location. Transmitting an electric signal between the first and second transducers.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: July 29, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Erwan Lemenager, Martin Luling, Yves Mathieu, Christian Chouzenoux
  • Publication number: 20140177392
    Abstract: A pressure-balanced acoustic-signal-receiving apparatus and methods therefor. The apparatus may comprise a first housing, a first actuator, a second housing, and a second actuator. The first housing may comprise a fluid chamber, a passage connecting a first and second portion of the fluid chamber, a tubular-contact assembly, an isolating member within the fluid chamber and coupled to the assembly, an acoustic-signal receiver within the isolating member and coupled to the assembly, and a communication member coupled to the receiver. A method for receiving an acoustic signal generated within a wellbore may comprise receiving the acoustic signal with a tubular-contact assembly, sensing the acoustic signal with an acoustic-signal receiver positioned within a fluid chamber and coupled to the assembly, equilibrating fluid pressures in the first and second portions of the fluid chamber, and transmitting information generated by the acoustic-signal receiver through a communication member.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Robert Brice PATTERSON, Stephen E. TILGHMAN, Dustin Robert HOLDEN, John Patrick RODGERS
  • Patent number: 8750075
    Abstract: An acoustic transceiver assembly including a housing, an oscillator, and at least one membrane. The housing has at least one inner wall defining a cavity. The housing also has a first end and a second end defining an axis of the acoustic transceiver assembly. The oscillator is provided in the cavity. The oscillator is provided with a transducer element, and a backing mass acoustically coupled to the transducer element. The at least one membrane extends outward from the backing mass to support at least the backing mass within the cavity. The at least one membrane is flexible in an axial direction parallel to the axis of the acoustic transceiver assembly to permit the backing mass to oscillate in the axial direction, and rigid in a transverse direction to restrict lateral movement of the backing mass relative to the housing.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 10, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Christophe Rayssiguier, Benoit Froelich
  • Publication number: 20140153369
    Abstract: A downhole repeater network timing system for a drilling rig including a drillstring extending subsurface downwardly from a surface wellhead. The system includes a node located at the drillstring lower end and including a sensor adapted for providing a signal data set output corresponding to downhole drilling conditions. Multiple nodes are located downhole between the Bottom Hole Assembly (BHA) and the wellhead and are associated with the drillstring. The nodes are adapted for receiving and transmitting the signals. The timing control system is adapted for controlling all times within a timeframe according to pre-configured constants known to all nodes. A downhole low rate linear repeater network timing method uses the system.
    Type: Application
    Filed: December 2, 2013
    Publication date: June 5, 2014
    Applicant: Xact Downhole Telemetry, Inc.
    Inventor: John-Peter van Zelm
  • Publication number: 20140133276
    Abstract: The invention relates to a telemetry system for use in a pipe having a wall, comprising a transmitter adapted to generate at least one acoustic wave in a frequency range of about 50-300 kHz and to inject the acoustic wave in the wall of the pipe, wherein the transmitter is further arranged to binary code information conceived to be transmitted with the acoustic wave. The invention further related to a pipe comprising the telemetry system and to a method of transmitting information via a pipe.
    Type: Application
    Filed: July 6, 2012
    Publication date: May 15, 2014
    Applicant: Nederlandse Organisatie voor toegepast- natuurwetenschappelijk onderzoek TNO
    Inventors: Arno Willem Frederik Volker, Rik Vos, Gert Jan Heerens
  • Publication number: 20140126332
    Abstract: A system for use with a subterranean well can include a well tool which generates an acoustic signal in response to operation of the well tool, the acoustic signal being detected by an acoustic receiver in the well. A method for verification of operation of a well tool can include operating the well tool, thereby generating an acoustic signal, and an acoustic receiver receiving the acoustic signal generated by the well tool, the acoustic signal including information indicative of the well tool operating. Another system for use with a subterranean well can include a well tool which generates an acoustic signal in response to operation of the well tool, an optical waveguide which receives the acoustic signal, and an optical interrogator connected to the optical waveguide. The optical interrogator detects the acoustic signal, which is indicative of the well tool operation.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Neal G. SKINNER
  • Publication number: 20140126331
    Abstract: An acoustic telemetry method for use with a subterranean well can include positioning a well tool in the well, the well tool including an acoustic transmitter and a sensor, and an acoustic receiver in the well receiving an acoustic signal transmitted by the transmitter, the acoustic signal including information representative of a measurement by the sensor. A system for use with a subterranean well can include a well tool positioned in the well, the well tool including an acoustic transmitter and a sensor, the acoustic transmitter transmits an acoustic signal including information representative of a measurement by the sensor to an acoustic receiver positioned in the well.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Neal G. SKINNER
  • Publication number: 20140126330
    Abstract: A system and techniques for acoustically establishing the onset of an emergent condition relative coiled tubing in a well. The system may include fiber optic line run through the coiled tubing for sake of vibration detection in coiled tubing indicative of buckling, structural defects or other downhole coiled tubing conditions. Thus, application optimization action may be undertaken in a manner that enhances coiled tubing operational efficacy.
    Type: Application
    Filed: November 8, 2012
    Publication date: May 8, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Rod William Shampine, Shunfeng Zheng, Rex Pastrana Burgos
  • Publication number: 20140112100
    Abstract: A system and method of optimizing air hammer performance in a well drilling rig whereby an electronic acoustic receiver (EAR) is used to monitor the effects of changing any of the operating parameters under his or her control. The signals are visually presented to the drill operator based on an EAR's output, along with current settings, allowing the drill operator to dial in the parameters of his or her choice until the optimal frequency of the air hammer is regained. The visual output displays the amplitude response of acoustic waves being detected and decoded at the surface by the EAR. The drill operator can observe and use this information to determine the changes necessary in the operating parameters to return the hammer to optimal frequency, and thus optimal performance.
    Type: Application
    Filed: December 30, 2013
    Publication date: April 24, 2014
    Applicant: Xact Downhole Telemetry, Inc.
    Inventors: Paul L. Camwell, James M. Neff
  • Patent number: 8704677
    Abstract: A downhole signal transmission system provides electric radiofrequency signals that are coupled to electrically conductive or non-conductive fluids through electrical insulators. A plurality of signal repeaters are tuned to the frequencies of the radiofrequency signals, and a plurality of transmission lines terminated by resonance circuits are also provided such that the terminating resonance circuits resonate on the frequencies of the electric radiofrequency signals. The plurality of signal repeaters and plurality of transmission elements are arranged to be redundant such that a failure of one or more of the signal repeaters or a failure of one or more of the transmission elements does not substantially affect the operation of the data transmission system. The signal repeaters and transmission elements also are arranged such that a failure of any of the signal repeaters or a failure of any of the transmission elements is communicated to the surface.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: April 22, 2014
    Assignee: Martin Scientific LLC
    Inventor: Manfred G. Prammer
  • Patent number: 8639186
    Abstract: Drill pipe segments, communication systems, and methods of manufacturing pipe segments usable for communicating data wirelessly between sensors and tools placed in an oil and/or gas well are provided. Communication specks are applied on at least one of an outer surface or an inner surface of the pipe segments or coil tubing.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: January 28, 2014
    Assignee: Sondex Wireline Limited
    Inventor: David Blaine Ayers
  • Patent number: 8634273
    Abstract: An embodiment includes a method comprising transmitting and receiving an acoustic signal that is modulated along a jointed tubing. The acoustic signal may be transmitted in multiple passbands of the jointed tubing and may be modulated differently in different passbands. A swept frequency signal may be used to determine transmission characteristics of the jointed tubing and to select the multiple passbands. Additional embodiments are disclosed.
    Type: Grant
    Filed: October 26, 2009
    Date of Patent: January 21, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Wallace R. Gardner, Vimal V. Shah, Carl A. Robbins
  • Patent number: 8605548
    Abstract: A bi-directional acoustic telemetry system is presented for communicating data and/or control signals between a first modem and a second modem along tubing. The system includes a communication channel defined by the tubing, a transducer of the first modem, and a transducer of the second modem. The transducer of each modem are configured to transmit and receive data and/or control signals, and are further configured to electrically communicate with a power amplifier characterized by an output impedance Zs and a signal conditioning amplifier characterized by an input impedance Zr. The system also includes a reciprocal response along the communication channel between the output impedance Zs and the input impedance Zr.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: December 10, 2013
    Assignee: Schlumberger Technology Corporation
    Inventor: Benoit Froelich