Well Logging Patents (Class 181/102)
  • Patent number: 10451761
    Abstract: A system and method for rheology measurements. The system may comprise a conduit; an ultrasound transmitter positioned to direct ultrasound pulses into the conduit; an ultrasound receiver positioned to receive sound waves from the conduit; a pump fluidically coupled to the conduit; and a heat exchanger fluidically coupled to the conduit. The method may comprise drawing a sample of a treatment fluid into the rheology measurement system; pressuring the sample of the treatment fluid; adjusting temperature of the treatment fluid; directing ultrasound pulses into the treatment fluid while the treatment fluid is flowing through the rheology measurement system; measuring sound waves reflected by the treatment fluid; and determining a velocity profile of the treatment fluid based at least on the measured sound waves.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: October 22, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Adam R. Dotson, Dale E. Jamison, Cato Russell McDaniel, Xiangnan Ye
  • Patent number: 10392925
    Abstract: The disclosed embodiments include leak detection systems and methods of downhole leak detection. In one embodiment, the method includes obtaining physical signals measured by at least one physical sensor traveling along a wellbore. The method also includes performing a frame decomposition operation on the physical signals of a first of the at least one the physical sensor to obtain a plurality of virtual signals associated with an array of virtual sensors, each virtual sensor of the array of virtual sensors being located at a virtual distance relative to the first physical sensor, the virtual distance corresponding to a physical distance. The method further includes synchronizing the virtual signals of the array of virtual sensors. The method further includes computing a spatial spectrum indicative of a location of a leak based on the synchronized virtual signals.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: August 27, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Yi Yang Ang, Nam Nguyen, Joni Lie, Yinghui Lu, Avinash Vinayak Taware
  • Patent number: 10392931
    Abstract: An asynchronous top-mounted pulser system for a measurement while drilling tool uses hydraulic flow, an obstruction, a piston-balance system, and an orifice, to create pressure pulses in drilling fluid, using hydraulic pressure on an obstruction in a main pulser to assist in closing the obstruction. A valve poppet is set above (upstream of) the orifice and is pushed by fluid flow towards a closing position. The piston-balance system, connected to the poppet and located downstream of the orifice in the main pulser, responds to net pressures on the upstream and downstream sides of the piston to move the poppet. The piston also responds to a spring assembly urging the piston downstream, and tending to move the valve poppet to a closed position. A servo pulser, located downstream of the main pulser, opens and closes a rotary shear servo valve-controlled bypass flow path to control the net pressures on the piston.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: August 27, 2019
    Assignee: Rime Downhole Technologies, LLC
    Inventor: Manoj Gopalan
  • Patent number: 10352158
    Abstract: A method and apparatus for predicting a formation parameter at a drill bit drilling a formation is disclosed. A vibration measurement is obtained at each of a plurality of depths in the borehole. A formation parameter is obtained proximate each of the plurality of depths in the borehole. A relationship is determined between the obtained vibration measurements and the measured formation parameters at the plurality of depths. A vibration measurement at a new drill bit location is obtained and the formation parameter at the new drill bit location is predicted from the vibration measurement and the determined relation. Formation type can be determined at the new drill bit location from the new vibration measurement and the determined relationship.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: July 16, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Jianyong Pei, Thomas G. Dahl, John D. Macpherson, Pushkar N. Jogi, Hanno Reckmann
  • Patent number: 10302785
    Abstract: A method for estimating in real time the geomechanical properties using drilling data and an accurate drilling model. An initial structural framework and initial distribution of the geomechanical and other rock properties is adjusted in real time by estimating accurately the corrected mechanical specific energy (CMSE), which is then used to estimate the geomechanical and other rock properties. For example, the updated geomechanical model can be used to geosteer the well toward the brittle zones that will achieve the best stimulation when using hydraulic fracturing in unconventional wells.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: May 28, 2019
    Assignee: FracGeo, LLC
    Inventors: Ronald Dirksen, Ahmed Ouenes
  • Patent number: 10294780
    Abstract: A method and system of mud pulse telemetry uses a preamble having a number of periods of a synchronization sequence followed by a single period of a channel estimation sequence. The synchronization may be characterized by a generally flat frequency spectrum, and the channel estimation sequence may be characterized by a low cross-correlation with said synchronization sequence. The sequences may be generated from a set of nonrepeating discrete sequences. The preamble may be suitable for both sequence detection and channel estimation, satisfy all the physical and/or electronic constraints of the system, and allow for fast convergence of an adaptive channel tracking or equalization system.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 21, 2019
    Assignee: HALLIBURTON ENERGY SERVICES, INC
    Inventor: Ehud Barak
  • Patent number: 10202843
    Abstract: A method and apparatus for measuring a property of settling of a first phase in a second fluid phase of a mixture. In order to measure the property of settling, the mixture may be contained in a chamber, an acoustic wave may be repeatedly passed vertically through the mixture, a transit time may be measured for each acoustic wave to traverse the mixture, and the property of settling using a change in the transit times of the acoustic waves may then be determined. In various embodiments, the property of settling can be a degree of settling.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: February 12, 2019
    Assignee: STATOIL PETROLEUM AS
    Inventors: Tomasz Wroblewski, Lorents Reinås, Tor Henry Omland, Stian Mjølhus
  • Patent number: 10184332
    Abstract: A well tool can include an outer housing and a vibratory transmitter disposed in the outer housing. The vibratory transmitter transmits a vibratory signal to an optical line disposed in the outer housing. A well system can include an optical line extending in a wellbore, and at least one well tool secured to the optical line and including a vibratory transmitter which transmits a vibratory signal to the optical line. The optical line conveys the well tool into the wellbore. A method of telemetering data from a well tool to an optical line can include securing the well tool to the optical line without optically connecting the well tool to the optical line, and conveying the well tool in a wellbore on the optical line.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: January 22, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Etienne M. Samson, Neal G. Skinner, William Mark Richards
  • Patent number: 10048395
    Abstract: A seismic sensor device includes an elongated housing for placement at least partially into an earth surface. A plurality of particle motion sensors are contained in the elongated housing to measure translational data in a first direction, where plural pairs of the particle motion sensors are spaced apart along a second, different direction along a longitudinal axis of the elongated housing. A communication interface communicates the measured translational data to a computer system configured to compute a gradient based on respective differences of the measured translational data of the corresponding plural pairs of the particle motion sensors, and compute one or more of rotation data and divergence data using the gradient.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: August 14, 2018
    Assignee: WESTERNGECO L.L.C.
    Inventors: Nicolas Goujon, Pascal Edme, Artem Kashubin, Everhard Johan Muijzert, Claudio Bagaini
  • Patent number: 9981325
    Abstract: A flange bolt cutter for separating two connected flanges. The flange bolt cutter contains a circular saw blade connected to an flange mount which can be vertically adjusted relative to the flange mount and/or includes two arms which can be pivotally adjusted relative to each other.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: May 29, 2018
    Assignee: TORQ/LITE, LLC
    Inventors: James Dodd Smith, Michael T. Ramsey
  • Patent number: 9982526
    Abstract: In the present invention that considerable advantage is to be gained in the provision of apparatus and methods for spectral noise logging that exhibit improved frequency resolution and thus sensitivity over those systems known in the art since this would allow for improved detection and characterization of fluid flow through, or behind, a casing of a well penetrating subsurface formations.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: May 29, 2018
    Assignees: TGT Oil and Gas Services FZE, Sonogram LLC
    Inventors: Dmitry Aleksandrovich Davydov, Artur Mikhailovich Aslanian
  • Patent number: 9951610
    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 19, 2016
    Date of Patent: April 24, 2018
    Assignee: BAKER HUGHES, LLC
    Inventor: Manfred G. Prammer
  • Patent number: 9932818
    Abstract: A system for drilling at least one well of interest proximate a reference well comprises at least one sensor in a drill string in the at least one well of interest to detect at least one parameter of interest related to a distance and a direction to the reference well. A controller is operatively coupled to the at least one sensor to determine the distance and the direction from the sensor to the reference well based at least in part on the at least one detected parameter of interest. A steerable assembly is operatively coupled to the controller to receive commands from the controller to adjust the path of the at least one well of interest being drilled based at least in part on the distance and direction from the sensor to the reference well.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: April 3, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Richard T Hay, Malcolm R Upshall
  • Patent number: 9927541
    Abstract: A tool for monopole and multipole sonic logging includes an acoustic source section, an acoustic receiver section, and an isolator section disposed therebetween. The tool may include a mandrel having integrally formed alternating first portions having a first outer diameter and second portions having a second outer diameter. The second outer diameter is smaller than the first outer diameter, which allows the portions to function acoustically as a mass and spring system. The isolator section sufficiently mutes or delays extensional and flexural modes intrinsic to the logging tool itself. Thus, the effects of the tool presence on the measurements are minimized. In addition, a plurality of axially oriented grooves are defined in an outer surface of the acoustic receiver section, and each groove is configured for receiving an acoustic receiver module that includes a sensor, an amplifier, an A/D converter, and a digital multiplexer.
    Type: Grant
    Filed: April 15, 2014
    Date of Patent: March 27, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Toshihiro Kinoshita, Naoki Sakiyama, Hitoshi Sugiyama, Yuichiro Wada, Toshimichi Wago, Akito Shigekane
  • Patent number: 9903972
    Abstract: A seismic sensor cable 10 for lowering into a subterranean well 15 for acquiring information about seismic, microseismic and mechanical vibration incidents in the subterranean well 15, where the device comprises a first portion 20 that is elongate and has a first length with a proximal end and a distal end that are to be lowered down into a lower part of the subterranean well 15, the first portion 20 having a plurality of electric or electromechanical multicomponent seismic sensors 25 that are connected and distributed over large parts of its first length, and wherein the seismic profiling device 10 further comprises a second portion 30 that is elongate and has a second length with a proximal end that is to be held above the subterranean well 15 and a distal end that is to be lowered down into the upper part of the subterranean well 15, said second portion 30 comprising an optical fiber 35 that runs along large parts of said second portion 30, and an electric cable 40 for conducting electric power from the pr
    Type: Grant
    Filed: June 10, 2014
    Date of Patent: February 27, 2018
    Assignee: Read AS
    Inventor: Tore Kjos
  • Patent number: 9891336
    Abstract: The disclosure addresses multiple embodiments of an acoustic isolator, and an acoustic logging tool which incorporates the acoustic isolator. The acoustic isolator is configured to minimize acoustic transmissions which could otherwise adversely affect acoustical measurements being made by an acoustic receiver. The described acoustic isolators include a plurality of longitudinally arranged mass members coupled to a central supporting structure, in a configuration to reduce acoustic transmissions in at least selected frequency ranges.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: February 13, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Chung Chang, Abbas Arian, Gary Kainer, Paul G. Junghans, Arthur Cheng, Randall Bennett Jones
  • Patent number: 9863242
    Abstract: A method for revealing anomalous discontinuity interfaces in pore pressures in non-drilled geological formations and an implementing system.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: January 9, 2018
    Assignee: ENI S.p.A.
    Inventors: Paolo Ferrara, Axel Turolla, Massimo Zampato
  • Patent number: 9850724
    Abstract: A downhole tool that has a plurality of arm assemblies. Each of the arm assemblies has an arm configured to expand and retract and an actuator. A hydraulic bus in fluid communication with the plurality of arm assemblies. A plurality of flow control devices. The flow control devices are configured to selectively isolate one or more arm assemblies of the plurality of arm assemblies from the hydraulic bus while maintaining the other arm assemblies of the plurality of arm assemblies in communication with the hydraulic bus.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: December 26, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Pierre-Arnaud Foucher, Todor K. Sheiretov, Gregory J. Giem, Lucas Teurlay, Quentin Smith
  • Patent number: 9715025
    Abstract: A method and apparatus for normalizing an acoustic wellbore tool by correcting measured sector acoustic signals due to changes in pressure and temperature downhole, the method and apparatus comprising an acoustic wellbore tool having at least one monopole transmitter and monopole receiver, and one or more sector transmitters and receivers disposed along the longitudinal axis of the tool, determining the attenuation values of received monopole and sector acoustic signals, determining a correction ratio using an average sector attenuation value and a theoretical attenuation value, and correcting the sector acoustic signals using the correction ratio.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: July 25, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Thomas J. Blankinship, Peter J. Schoch, Lucio N. Tello, Gregory J. Caston
  • Patent number: 9684091
    Abstract: An apparatus and method for simultaneously obtaining quantitative measurements of vertical and horizontal resistivity and permittivity formation parameters by firing, using at least one transmitter in each of a horizontally and vertically polarized array on opposite sides of a drill collar, signals in the direction of a downhole formation, the fired signals from the transmitters in the arrays being fired simultaneously and engaging the downhole formation. The apparatus and method continues by receiving, using at least one receiver in each of the arrays, signals associated with the fired signals after the fired signals have engaged the downhole formation, where the received signals represent apparent formation data. The apparatus and method further involves determining, using the measured apparent formation data, the true formation data including one or more vertical and horizontal formation parameters.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: June 20, 2017
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Shanjun Li, Jiefu Chen
  • Patent number: 9671374
    Abstract: An ultrasound probe assembly includes a transducer configured to transmit and receive ultrasound signals in relation to a structure, and a delay line coupled to the transducer. The delay line is configured to change shapes between an uncompressed state and a compressed state. In at least one embodiment, the changing shape of the delay line changes a shape of the ultrasound signals.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: June 6, 2017
    Assignee: The Boeing Company
    Inventor: Jeffrey Reyner Kollgard
  • Patent number: 9644434
    Abstract: A shock sleeve is positioned above a UBHO sleeve, and both are received inside a substantially tubular sub collar. The shock sleeve is free to reciprocate with respect to the UBHO sleeve and sub collar. A mud pulse transmitter valve is received into the shock sleeve. The shock sleeve is interposed between upper and lower shock springs, which provide compensating compression spring bias to dampen the transmitter valve (as received in the shock sleeve) from vibration or shock forces experienced by the sub collar. At least one shock absorbing compression ring interposed between mating portions of the shock sleeve and transmitter valve also dampens the transmitter valve against vibration or shock. An optional mud filter received over the shock sleeve removes particulate matter from drilling fluid before it encounters the shock sleeve.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: May 9, 2017
    Assignee: Gordon Technologies LLC
    Inventor: Terrence G. Frith
  • Patent number: 9631476
    Abstract: Various systems and methods for implementing and using a variable stiffness downhole tool housing include cylindrical segments positioned along a common axis, with a pair of segments each coupled to a bulkhead and positioned at either axial end of the tool housing. The housing also includes a flexible cylindrical sleeve, positioned along the common axis between two of the plurality of cylindrical segments, that includes a first and second region with an outer diameter no larger than a common segment inner diameter and a third region located between the first and second regions and with an outer diameter no larger than a common segment outer diameter (the first and second regions each at least partially inserted into an end of one segment). A stiffness controller controls the stiffness of the tool housing by controlling at least part of an axial force exerted between the two segments.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: April 25, 2017
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Chung Chang, Arthur Cheng, Gary Kainer
  • Patent number: 9612360
    Abstract: To determine properties of multiple oil and gas wells, oscillations at different test frequencies are applied to the flow rate and/or pressure of multiple wells. Measurements of flow rate and/or pressure and temperature in flows downstream of a production header of the multiple wells are then obtained. Such measurements from the flows of the multiple wells are subjected to a frequency analysis of the pressure, flow rate and/or temperature measurements to determine pressure, flow rate and/or temperature variations induced by the applied oscillations. Properties of the different wells of the multiple wells based on the results of the frequency analysis are thus determined.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: April 4, 2017
    Assignees: NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY (NTNU), SINTEF TTO AS
    Inventors: Federico Zenith, Johannes Tjønnas, Ingrid Schjølberg, Bjarne Foss, Vidar Gunnerud
  • Patent number: 9611730
    Abstract: Methods and apparatus for using multi-component geophones and/or multi-component geophone arrays to measure flow-induced acoustic energy produced in wellbores are provided. With the use of the multi-component geophones, the measured acoustic energy may be resolved into its directional components. The computed directional energy components may be mathematically compared to numerically highlight ambient flow conditions (e.g., leaks in casing or other conduit, points of fluid entry/exit/restrictions between the casing and the formation). The use of an array of multi-component geophones allows for the use of geophone move-out curves to further identify acoustic energy source locations.
    Type: Grant
    Filed: March 27, 2013
    Date of Patent: April 4, 2017
    Assignee: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
    Inventors: Brian Rochford, John Arbeau, Jim Rangel
  • Patent number: 9574441
    Abstract: A method for modulating a downhole telemetry signal uses a fluid pressure pulse generator that generates pressure pulses of multiple pulse heights in a drilling fluid. The method comprises: converting measurement data into a bitstream comprising symbols of a selected symbol set; encoding the bitstream into a pressure pulse telemetry signal using a modulation technique that includes amplitude shift keying, wherein each symbol of the selected symbol set is assigned a pressure pulse having a unique amplitude; and generating pressure pulses in the drilling fluid corresponding to the telemetry signal. Alternatively, the method can comprise a modulation technique that includes amplitude shift keying and phase shift keying and wherein each symbol of the selected symbol set is assigned a pressure pulse having a unique combination of amplitude and phase.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: February 21, 2017
    Assignee: Evolution Engineering Inc.
    Inventors: Jili Liu, Mingdong Xu, David A. Switzer, Aaron W. Logan
  • Patent number: 9567845
    Abstract: A seismic sensor for a downhole tool positionable in a wellbore penetrating a subterranean formation. The seismic sensor includes a sensor housing, a bobbin supported in the sensor housing along an axis thereof, at least one coil wound about the bobbin (the coil movably supportable within the sensor housing by at least one spring), at least one magnet positionable about the bobbin to generate a magnetic field with the at least one coil whereby seismic vibrations are detectable, and a filler fluid disposed in the sensor housing to buoy the at least one coil whereby gravitational effects may be neutralized.
    Type: Grant
    Filed: June 30, 2013
    Date of Patent: February 14, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Toru Ikegami
  • Patent number: 9550241
    Abstract: A flange bolt cutter for separating two connected flanges. The flange bolt cutter contains a circular saw blade connected to an flange mount which can be vertically adjusted relative to the flange mount and/or includes two arms which can be pivotally adjusted relative to each other.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: January 24, 2017
    Assignee: Francis Torq/Lite, Inc.
    Inventors: James Dodd Smith, Michael T. Ramsey
  • Patent number: 9547098
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to measure compressional wave velocities in a geological formation surrounding a first well, to provide measured compressional wave velocity data, and to subsequently determine corrected compressional wave velocities for the first well. These corrected compressional wave velocities for the first well may be determined using a combination of the measured compressional wave velocity data and corrected compressional wave velocity data associated with one or more second wells. Predicted pore pressure data for the first well may be subsequently generated, using the corrected compressional wave velocities for the first well. Additional apparatus, systems, and methods are described.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: January 17, 2017
    Assignee: Landmark Graphics Corporation
    Inventors: Shuling Li, Cary C Purdy
  • Patent number: 9476271
    Abstract: A flow control system for drilling a well comprises a conduit defining a channel configured to accommodate a drill pipe and a flow of a returning drilling fluid, and an acoustic sensor array configured to detect a flow rate of the returning drilling fluid. The flow control system further comprises a flow control device configured to control the flow rate of the returning drilling fluid and to be actuated in response to an event detected by the sensor array, the flow control device being proximate to the sensor array.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: October 25, 2016
    Assignee: General Electric Company
    Inventors: Robert Arnold Judge, Christopher Edward Wolfe, Fengsu Liu, Li Liu, Farshad Ghasripoor
  • Patent number: 9476297
    Abstract: This invention comprises systems, methods and apparatus for mud pulse telemetry involving sending benchmark pulses with known characteristics (such as amplitude or duration) from the surface to the BHA, measuring those characteristics at the BHA, using those measurements to predict the likely attenuation of downhole-to-surface mud pulse transmissions, and adjusting those transmissions to compensate for high attenuation or to obtain energy savings (or transmission rate increases) during low-attenuation conditions. Further refinements on these systems and methods, particularly concerning the use of signal-to-noise ratio measurements at the surface to more efficiently predict attenuation, are also disclosed.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 25, 2016
    Assignee: Evolution Engineering Inc.
    Inventors: Aaron W. Logan, Jili Liu, David A. Switzer
  • Patent number: 9458712
    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: March 17, 2015
    Date of Patent: October 4, 2016
    Assignee: XACT Downhole Telemetry, Inc.
    Inventors: Paul L. Camwell, David D. Whalen, Douglas S. Drumheller
  • Patent number: 9403671
    Abstract: A micro electromechanical systems (MEMS) sensor is excited. The response of the MEMS sensor is measured. The MEMS sensor is calibrated.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: August 2, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Brian D. Homeijer, Robert Newton Bicknell
  • Patent number: 9322942
    Abstract: A streamer for seismic prospection comprising directional sensors (20), such as geophones or accelerometers, distributed along the streamer, characterized in that said streamer comprises at least two tilt sensors (30, 40) located in remote positions and in locations distant from the directional sensors (20) and means which determined the effective orientation of each directional sensor (20) by interpolating along the streamer the tilt detected by the two tilt sensors (30, 40).
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: April 26, 2016
    Assignee: SERCEL
    Inventors: Gaetan Mellier, John Hepp, Mike Maples, Simon Leboeuf, Isabelle Sellin
  • Patent number: 9260958
    Abstract: An apparatus for acoustic imaging includes an array with a number of acoustic transducers. Each acoustic transducer transmits and receives acoustic signals. The apparatus also includes a control unit that is coupled to the array and selectively powers a number of acoustic transducers based upon standoff distance between the array and an object-of-interest (e.g., a borehole wall). In some embodiments, the control unit also varies the frequency of acoustic signals transmitted from the array using the standoff distance between the array and the object-of-interest.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: February 16, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Ralph M. D'Angelo
  • Patent number: 9213905
    Abstract: A method of automatic obstacle location mapping comprises receiving an indication of a feature to be identified in a defined area. An instance of the feature is found within an image. A report is then generated conveying the location of said feature.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: December 15, 2015
    Assignee: Trimble Navigation Limited
    Inventors: Arthur F. Lange, Michael Cash, Martin C. Bringuel, Robert J. Lindores, Shawn D. Weisenburger, Peter G. France, James M. Janky
  • Patent number: 9115568
    Abstract: A downhole measurement tool includes at least one regular receiver and at least one reference receiver externally deployed on a tool body. The reference receiver is configured to be acoustically isolated from the borehole, for example, via an isolation structure including a high-impedance cap and a low-impedance gap. The reference receiver may be deployed in a linear array with the regular receiver(s) and may be substantially identical to the regular receiver(s) such that it has substantially the same sensitivity to tool mode signals and internal drilling noise as do the regular receivers. Received waveforms may be processed so as to remove tool mode arrivals and/or drilling noise.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: August 25, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Wei Han, Jun Zhang, Paul Boonen
  • Patent number: 9103203
    Abstract: A value of a property of a fluid-filled wellbore system can be detected. This can be accomplished by recording data including at least one of pressure and rate of flow at one or more locations in the wellbore system, and then estimating the value of the property by employing a model for predicting at least one of pressure and rate of flow dependent upon characteristics and locations of disturbances to pressure and flow in the wellbore system, in order to determine a best prediction of some attribute of the recorded data.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: August 11, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Douglas E. Miller, Philip Sullivan, Richard Timothy Coates, Francois Auzerais, Tarek M. Habashy, Dominique Guillot, Rod Shampine
  • Patent number: 9081110
    Abstract: Downhole seismic sources that may be compatible measurement-while-drilling systems. The downhole seismic sources are integrated into drill string components, including drill collars of the bottom hole assembly. The downhole seismic sources may generate a low swept frequency signal suitable for imaging around the drill-string and ahead of the drill bit. Integrated downhole seismic systems including a downhole seismic source, receivers and optionally data processing capabilities. The integrated systems may be configured to determine the distance and orientation of bed boundaries, including ahead of the drill bit up to about 200 m to 500 m in depth. Methods for downhole seismic, including single well and cross-well seismic. The methods may include obtaining seismic information ahead of the drill bit.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: July 14, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Jacques Orban, Neilkunal Panchal
  • Patent number: 9080427
    Abstract: Apparatuses useable in an offshore drilling installation close to the seabed for controlling well influx within a wellbore are provided. An apparatus includes a centralizer and flow constrictor assembly, a sensor and a controller. The centralizer and flow constrictor assembly are configured to centralize a drill string within a drill riser and regulate a return mud flow. The sensor is located close to the centralizer and flow constrictor assembly and configured to acquire values of at least one parameter related to the return mud flow. The controller is coupled to the centralizer and flow constrictor assembly and the sensor. The controller is configured to control the centralizer and flow constrictor assembly to achieve a value of a control parameter close to a predetermined value, based on the values acquired by the sensor.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: July 14, 2015
    Assignee: General Electric Company
    Inventors: Farshad Ghasripoor, Christopher Edward Wolfe, Thomas James Batzinger, Gary Dwayne Mandrusiak, Robert Arnold Judge
  • Publication number: 20150143888
    Abstract: A dipole source for borehole acoustic logging is provided, including a cylindrical shell, a center beam coupled to the cylindrical shell and a movable projector inside the cylindrical shell to impact the center beam. The dipole source includes a cavity acoustically insulating the interior of the cylindrical shell from the exterior of the cylindrical shell. An acoustic logging tool for making measurements of a substrate surrounding a borehole with a body insertable in the borehole is also provided. The body includes an acoustic detector and a dipole source as above, along the axial length. The acoustic logging tool may include a control unit to process data collected from the acoustic detector and obtain information about the substrate surrounding the borehole. According to embodiments disclosed herein, a method for operating a dipole source and an acoustic logging tool as above is provided.
    Type: Application
    Filed: June 11, 2012
    Publication date: May 28, 2015
    Inventors: Chung Chang, Haoshi Song, Wei Zhang
  • Patent number: 9038765
    Abstract: Neutrally-buoyant tools for seismic data collection are provided that may range from several hundred meters to several kilometers in length and have integrated sensors which move along with the borehole fluid in response to a passing seismic wave. The disclosure also provides methods of deploying neutrally-buoyant tools, which includes using a tractor, adding a weight or both to the tool in order to overcome the difficulty of lowering a neutrally buoyant tool into a borehole, and optionally occasionally clamping the tool to the borehole to alleviate tension in the tool. This disclosure also provides methods of acquiring seismic data, which involves positioning a neutrally-buoyant tool in a borehole such that the tool is able to move relatively freely along with the borehole fluid in response to a seismic wave passing through the fluid, firing a seismic source, and using the sensors to collect seismic data generated thereby.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: May 26, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Nicolas Goujon, Julian Edward Kragh, Philip A. F. Christie, Emmanuel Coste, Clement Kostov, Oeyvind Teigen, Toru Ikegami, Marwan Charara
  • Publication number: 20150136516
    Abstract: The disclosure addresses acoustic receivers including an acoustic isolator structure, and an acoustic logging tool which incorporates the acoustic receiver. The acoustic receiver isolation structure is configured to minimize acoustic transmissions which could otherwise adversely affect acoustical measurements being made by an acoustic receiver. The described acoustic receiver includes a plurality of longitudinally arranged mass members coupled to a central supporting structure, in a configuration to reduce acoustic transmissions in at least selected frequency ranges.
    Type: Application
    Filed: March 27, 2014
    Publication date: May 21, 2015
    Inventors: Chung Chang, Abbas Arian, Randall Bennett Jones, Gary Kainer, Arthur Cheng
  • Publication number: 20150096827
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to measure compressional wave velocities in a geological formation surrounding a first well, to provide measured compressional wave velocity data, and to subsequently determine corrected compressional wave velocities for the first well. These corrected compressional wave velocities for the first well may be determined using a combination of the measured compressional wave velocity data and corrected compressional wave velocity data associated with one or more second wells. Predicted pore pressure data for the first well may be subsequently generated, using the corrected compressional wave velocities for the first well. Additional apparatus, systems, and methods are described.
    Type: Application
    Filed: April 9, 2012
    Publication date: April 9, 2015
    Applicant: Landmark Graphics Corporation
    Inventors: Shuling Li, Cary C. Purdy
  • Patent number: 8944183
    Abstract: The present disclosure is related to apparatuses and methods measuring and processing a characteristic of subsurface earth formations penetrated by a borehole. More specifically this present disclosure relates to a method and apparatus for measuring and processing an acoustic characteristic such as formation shear wave velocity of subsurface sonic waves after these waves traverse earth formations adjoining a borehole or passing through a portion of the subsurface. The apparatus may include: a bottomhole assembly, a drill bit configured to generate an acoustic signal, at least two acoustic detectors, and a processor. The acoustic signal may include a specific multipole signal that may propagate through an earth formation along the borehole. The method may include use of the apparatus, including steps for estimating a shear velocity of the acoustic signal using signals from the at least two acoustic detectors.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: February 3, 2015
    Assignee: Baker Hughes Incorporated
    Inventors: Theodorus W. Geerits, Douglas J. Patterson
  • Patent number: 8848485
    Abstract: Methods and apparatus for performing sonic well logging within a wellbore based on optical Distributed Acoustic Sensing (DAS) are provided. A sonic well logging system based on DAS may be capable of producing the functional equivalent of tens, hundreds, or even thousands of acoustic sensors. In this manner, the emplacement of the sonic well logging system based on DAS may not be nearly as complex or expensive as emplacing a sonic well logging system based on traditional methods. Furthermore, multiplexing may be simpler, downhole electronics need not be used, and the sonic well logging system may be used in extreme, high temperature environments.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: September 30, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventor: Francis X. Bostick, III
  • Patent number: 8831886
    Abstract: Embodiments of this invention relate to compositions and methods of processing a subterranean formation including collecting microseismic data from one wellbore, collecting amplitude ratio information for the microseismic data, comparing the amplitude ratio to an expected ratio, generating a representation of a formation based on the microseismic data and the comparison of the amplitude ratio and expected ratio, and performing an oil field services activity based on the representation.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: September 9, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Michael John Williams
  • Patent number: 8773134
    Abstract: A logging tool for use in a wellbore having a sensor portion for making measurements. The tool has a sleeve enclosing the sensor portion and made of a material that is transparent to the measurements being made. One or more structural elements having physical characteristics different from the material comprising the sleeve are carried on the sleeve to enhance the mechanical properties of the sleeve.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: July 8, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Alice Sorbier, James S. Almaguer
  • Publication number: 20140121979
    Abstract: A method and apparatus for determining the location of a material located behind an obstruction. A plurality of acoustic resonators (6) having a known resonant frequency are dispersed in the material (3), the material to be located on a first side of the obstruction (2). An instrument (5) is provided at an opposite side of the obstruction to the material. The instrument emits an acoustic signal and measures a response. If the resonant frequency is detected, it is determined that the material is located substantially adjacent to the instrument. The apparatus may be used for determining the height of cement slurry located between a well casing wall and a borehole.
    Type: Application
    Filed: June 1, 2011
    Publication date: May 1, 2014
    Applicant: STATOIL PETROLEUM AS
    Inventors: Gjermund Grimsbo, Marcus Fathi, Bjarne Bugten
  • Patent number: 8682587
    Abstract: A method and apparatus for determining the fluid permeability of an earth formation is described. An instrument comprising an acoustic source and acoustic and electrokinetic sensors is located in a borehole at a site of interest. The acoustic source is fired and the resulting variations in pressure and electric field generated are measured and recorded. The Biot equation, and an equation for the streaming potential coupled to fluid displacement terms, is solved using finite element analysis to give an expected pressure waveform and electrokinetic waveform based on estimated earth formation properties. By comparison of the measured waveforms and those calculated from the equations, the actual permeability of the earth formation can be deduced.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: March 25, 2014
    Assignee: Sondex Wireline Limited
    Inventors: Julian Singer, Jonathan Howard Saunders, Christopher Pain