Well Logging Patents (Class 367/25)
  • Patent number: 10725195
    Abstract: Described herein is a method including acquiring a set of transimpedance coupling voltages, between different antenna components of different axes of a transmitting station transmitting into a formation and different antenna components of different axes of a receiving station receiving from the formation, using an induction tool undergoing random movement during the acquisition. Fourier coefficients for the set of transimpedance coupling voltages are determined using a least square process. A mean tool eccentering azimuthal angle and an apparent formation azimuthal angle are estimated as a function of the Fourier coefficients. Compensated measurements are computed as a function of the Fourier coefficients. An inversion loop receives as input the compensated measurements, the estimated mean tool eccentering azimuthal angle, and the estimated apparent formation azimuth, and outputs final parameters as a function thereof.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: July 28, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Peter Wu
  • Patent number: 10670757
    Abstract: This disclosure presents methods and systems for deblending blended seismic data obtained during simultaneous shooting acquisition into deblended seismic data gathers. Methods and systems iteratively separate the blended seismic data into the deblended seismic data gathers based on semblance analysis of a residual difference between the blended seismic data and the deblended seismic data gathers. Each deblended seismic data gather is associated with one of the sources and appears to have been obtained without substantial interference from seismic energy produced by other sources.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: June 2, 2020
    Assignee: PGS Geophysical AS
    Inventor: Rolf Huibert Baardman
  • Patent number: 10641743
    Abstract: A method of inspecting a pipe for flaws includes emitting ultrasonic waves, controlling the emission of the ultrasonic waves, receiving reflections of the ultrasonic waves, and determining at least one characteristic of one or more flaws. The ultrasonic waves are emitted in a helical pattern through the pipe from an array of ultrasonic transducer elements. The emission of the ultrasonic waves from the array is controlled such that the ultrasonic waves are emitted at a plurality of helical angles within a range of helical angles. The reflections of the ultrasonic waves are caused by impingement of the ultrasonic waves on the one or more flaws. The at least one characteristic of the one or more flaws is determined based on the received reflections of the ultrasonic waves.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: May 5, 2020
    Assignee: Q12 Elements, LLC
    Inventors: Haraprasad Kannajosyula, Giovanni Nino, Phillip D. Bondurant, Vincent Fratello
  • Patent number: 10605036
    Abstract: Methods include providing a blowout preventer body having at least one sealing ram for engaging with a downhole tool, and the sealing ram is hydraulically actuatable between a ram open position and a ram closed position. A hydraulic control valve is provided and used for sensing a differential pressure across the at least one sealing ram. The hydraulic control valve is fluidly connected to the blowout preventer body, and the hydraulic control valve operates as a hydraulic interlock to prevent the at least one sealing ram from being moved to the ram open position under predetermined differential pressure conditions. The blowout pre-venter is connected to a wellhead disposed on a wellbore, and the downhole tool and coiled tubing are deployed into and out of the wellbore.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: March 31, 2020
    Assignee: Schlumberger Technology Corporation
    Inventor: Rod William Shampine
  • Patent number: 10577924
    Abstract: Examples of techniques for anonymizing data are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes receiving, by a processing device, raw data from a wellbore operation. The raw data can be associated with depths. The method further includes anonymizing, by the processing device, the raw data to convert the raw data to anonymized data. One or more techniques can be implemented to anonymize the data, such as shuffling the raw data, normalizing the raw data, and/or non-dimensionalizing the raw data. The method further includes analyzing, by the processing device, the anonymized data. The method further includes performing an action at the wellbore operation based at least in part on the analysis of the anonymized data.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: March 3, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Tobias Hoeink, Colleen Barton
  • Patent number: 10563500
    Abstract: Examples of techniques for anonymizing data are disclosed. In one example implementation according to aspects of the present disclosure, a computer-implemented method includes receiving, by a processing device, raw data from a wellbore operation. The raw data can be associated with depths. The method further includes anonymizing, by the processing device, the raw data to convert the raw data to anonymized data. One or more techniques can be implemented to anonymize the data, such as shuffling the raw data, normalizing the raw data, and/or non-dimensionalizing the raw data. The method further includes analyzing, by the processing device, the anonymized data. The method further includes performing an action at the wellbore operation based at least in part on the analysis of the anonymized data.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: February 18, 2020
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Tobias Hoeink, Colleen Barton
  • Patent number: 10557315
    Abstract: An apparatus for mounting one or more transducers to a drill pipe. The apparatus comprises a sub-pipe having a bore and a transducer-holding assembly, wherein the transducer-holding assembly is insertable into the bore of the sub-pipe from an axial end of the sub-pipe. The apparatus further comprising a tension collar connected to the bore-defining surface of the sub-pipe and bearing upon the transducer-holder.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: February 11, 2020
    Assignee: Cold Bore Technology Inc.
    Inventors: Noah Li-Leger, Peter Rizun, Nicolai Calin Pacurari, Craig Anthony Bergmann, Aryan Saed
  • Patent number: 10458231
    Abstract: A method can include receiving acoustic emission data for acoustic emissions originating in a formation, performing a moment tensor analysis of the data, thereby yielding acoustic emission source parameters, determining at least one acoustic emission source parameter angle having a highest number of associated acoustic emission events, and calculating an in situ stress parameter, based on the acoustic emission source parameter angle. A system can include multiple sensors that sense acoustic emissions originating in a formation, and a computer including a computer readable medium having instructions that cause a processor to perform a moment tensor analysis of the data and yield acoustic emission source parameters, determine at least one acoustic emission source parameter angle having a highest number of associated acoustic emission events, and calculate an in situ stress parameter, based on the acoustic emission source parameter angle.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 29, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Philip D. Nguyen, Jesse Clay Hampton, Douglas Everett Wyatt
  • Patent number: 10444405
    Abstract: Systems and methods for modeling subsurface rock formations based on well log data are provided. Systems include a downhole tool for acquiring data from which borehole dips may be picked and a processor including machine-readable instructions for curvature analysis based on inputs generated from the picked borehole dips data and which may be independent of 2D cross section model orientation. Methods (which may be incorporated in the machine-readable instructions corresponding to the systems) include pre-processing borehole dips data to generate inputs such as true stratigraphic thickness index, Local Constant Dips, borehole structural dip, and attributes for structural dip projections which may be used in a curvature analysis process for generating curvature logs such as standard, curvature along axis and curvature normal to axis logs from for smoothed dips, short zone structural dips and/or long zone structural dips.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: October 15, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kang Wang, Philippe Marza, Shiduo Yang, Randolph Koepsell, Mi Zhou, Bin Bin Du, Rebecca Steinmann
  • Patent number: 10408053
    Abstract: Systems, devices, and methods for estimating a value of a parameter of interest of an earth formation intersected by a borehole. Methods include conveying a carrier in the borehole having disposed thereon an acoustic imaging tool including at least one convex linear phased array module, each of the at least one module comprising a rigid shell forming a compartment containing a piezoelectric component array; using the acoustic imaging tool to take acoustic measurements of the borehole; and using the acoustic measurements to estimate at least one parameter of interest. Each module may be self-contained. The tool may include a plurality of modules circumferentially arrayed about a portion of the acoustic tool. Methods include individually removing one selected module from the acoustic tool. Methods may include selecting an outer tool diameter the same as an inner borehole diameter borehole and selecting a maximum number of modules fitting the outer tool diameter.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: September 10, 2019
    Assignee: Baker Hughes, a GE company, LLC
    Inventors: Brian Breaux, James V. Leggett, III, Steffen Toscher, Roger Steinsiek
  • Patent number: 10379238
    Abstract: The present disclosure relates to the technical field of acoustic logging while drilling, and provides an integral packaging device for acoustic receiving transducers while drilling, wherein, the receiving transducers are directly arranged in a signal processing circuit, which is installed in an internal supporting frame fitted in a rectangular bellow; one side of the bellow has a deformable surface that is of a corrugated structure, and oil is filled in the bellow; the receiving transducers are arranged on the side that has a deformable surface; a shock absorbing rubber piece is of a U-shaped structure; one end of a connecting unit is connected to the signal processing circuit, and the other end of the connecting unit is connected to a main control circuit in a logging while drilling instrument. The present disclosure employs an integral packaging structure, which is easy to install structurally.
    Type: Grant
    Filed: January 20, 2019
    Date of Patent: August 13, 2019
    Assignee: INSTITUTE OF GEOLOGY AND GEOPHYSICS, CHINESE ACADEMY OF SCIENCES
    Inventors: Jian Zheng, Wenxuan Chen, Qingyun Di, Zili Wang, Yuntao Sun, Yongyou Yang, Wenxiu Zhang
  • Patent number: 10371842
    Abstract: A seismic data analysis system includes seismic receivers to collect seismic survey data, wherein the seismic survey data includes direct and reflected arrival data in response to at least one seismic source fired at different shot offsets. The system also includes memory that stores the collected seismic survey data. The system also includes a processing unit that extracts traveltimes for direct and reflected arrivals from the seismic survey data and performs an inversion using the direct and reflected arrival traveltimes simultaneously to determine anisotropy parameters, including Thomsen parameters, epsilon (?) and delta (?), for at least one layer of a vertical transversely isotropic (VTI) model.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: August 6, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ran Zhou, Bruce Edward Cornish, Donghong Pei, Daniel Joseph Quinn
  • Patent number: 10301935
    Abstract: Hybrid inversion processing techniques are implemented that result in improved speed and accuracy of determining formation properties using log data, for example, from an multi-component induction logging tool. Logging data relating to the formation of interest is obtained and used as an input. High frequency noise is then removed from the logging data and bed-boundary determination is performed using the logging data. An adaptive low pass filter is applied to the logging data and the logging data is inverted. The inverted logging data is correct and enhanced by determining one or more weights based on one or more quality indicators. The inverted logging data may then be visually interpreted and used to adjust one or more drilling parameters.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: May 28, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Chao-Fu Wang, Ahmed E. Fouda, Burkay Donderici
  • Patent number: 10295691
    Abstract: To process geological log data, a two-dimensional set of log values recorded at a plurality of points is obtained about a borehole periphery, and over a chosen length along the borehole. The set of log values are decomposed by identifying in the set one or more main functions indicative of one or more main geological layer features of the rock penetrated by the borehole and removing log values corresponding to values of the main functions from the set of log values. Further decomposing the set of log values can be performed, as necessary iteratively, based on one or more subsidiary functions. The log values of the set remaining after identification and removal of values are designated as texture. Functions indicative of the main and subsidiary layer features and the texture are used to construct a synthesized volume representing the rock removed during creation of the chosen length of the borehole.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: May 21, 2019
    Assignee: Reeves Wireline Technologies Limited
    Inventors: Alexander Gorban, Evgeny Mirkes, Jeremy Levesley, James Whetton
  • Patent number: 10267140
    Abstract: Fracture imaging modules having one or more 3-component sensors, are incorporated into a tool comprising two or more of the modules for detecting microseismic events in a formation from the same wellbore as is being stimulated. The modules are locked together in a compact mode to permit injection into the wellbore through a conventional lubricator which has a fixed length. Once injected into the wellbore, the modules are spaced from one another in an extended mode to form an axially spaced sensor array which increases the measurement window in the wellbore compared to sensor arrays conventionally injected through a fixed length lubricator. Following the operation, the modules are actuated to return to the compact mode for pulling out of the hole through the lubricator.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: April 23, 2019
    Assignee: KOBOLD CORPORATION
    Inventors: Mark Andreychuk, Per Angman, Allan Petrella
  • Patent number: 10222506
    Abstract: A technique generates seismic data that may be analyzed. A combination sensor is operated and deployed in a borehole to obtain orientation data, such as data related to the local magnetic field and a log of the magnetic field direction in the borehole. Following the combination sensor, at least one multi-component seismic source is deployed downhole into the borehole. The at least one multi-component seismic source comprises sensors, such as an inclinometer and a magnetometer. Data from the combination sensor and from the at least one multi-component seismic source is processed to determine an absolute orientation of the at least one multi-component seismic source.
    Type: Grant
    Filed: September 8, 2015
    Date of Patent: March 5, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Clement Kostov, Martin G. Luling, Mark Puckett
  • Patent number: 10209476
    Abstract: A surface-mounted fiber segment includes at least one bare optical fiber glass segment disposed onto a receiving surface, and an adhesive material applied to the at least one bare optical fiber glass segment. The adhesive material substantially encapsulates the at least one bare optical fiber glass segment and adheres the at least one bare optical fiber glass segment onto the receiving surface.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: February 19, 2019
    Assignee: Google LLC
    Inventors: Chad Johnston, Enrique Gonzalez Lopez
  • Patent number: 10168442
    Abstract: Systems and methods for differential energy analysis of dipole acoustic signals to facilitate identification of geological or borehole characteristics are provided. An acoustic downhole tool may be placed into a borehole in a geological formation. A dipole acoustic signal may be emitted using one or more acoustic transmitters of the downhole tool, and the dipole acoustic signal may be measured using one or more acoustic receivers of the downhole tool. Using a processor, a dipole differential energy of the dipole acoustic signal (as measured by two of the one or more acoustic receivers or as emitted by two of the one or more acoustic transmitters, or both) may be computed. The processor may provide an indication of the dipole differential energy to facilitate identification of characteristics of the geological formation or the borehole, or both.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: January 1, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Sachin Bammi, John Adam Donald, Takeshi Endo
  • Patent number: 10132162
    Abstract: An apparatus and method of using drilling vibrations generated by the deformation of a rock formation in response to forces acting on the rock formation, where the forces are related to a drill bit and/or drilling fluid system, to identify the nature and occurrence of fractures, fracture swarms and other mechanical discontinuities (boundaries) such as bedding planes and/or faults that offset or otherwise separate rock formations with different mechanical rock properties.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: November 20, 2018
    Assignee: Fracture ID, Inc.
    Inventors: R. Christopher Neale, James D. Lakings
  • Patent number: 10120343
    Abstract: The invention relates to a method, system and apparatus for synchronizing the time of time series data acquired from a wellbore sensor relative to a reference time series. This comprises acquiring a first time series from a sensor in a wellbore, acquiring a reference time series and determining a linear moveout time correction to apply to the first time series. The linear moveout time correction is equal to the depth of the wellbore sensor divided by the signal propagation velocity. The linear moveout correction is applied to the first time series. The first time series is cross-correlated with the reference time series to determine a cross-correlation time correction to apply to the first time series and the cross-correlation time correction is applied to the first time series to obtain a cross-correlation corrected time series. Dynamic time warping and dynamic cross-correlation may be used to adjust for clock drift.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: November 6, 2018
    Assignee: CONOCOPHILLIPS COMPANY
    Inventors: Stephen K. Chiu, Phil D. Anno
  • Patent number: 10120090
    Abstract: Implementations provide identification of rock boundaries and evaluation of rock interval velocities in subterranean zones. Actions can include receiving acoustic signals associated with sounds produced by a well tool implemented to perform a well operation by contacting a portion of a subterranean zone, the acoustic signals being composed of source acoustic signals and reflected acoustic signals produced in response to the source acoustic signals, processing the acoustic signals to determine the source acoustic signals and the reflected acoustic signals and determining properties of the subterranean zone based on the source acoustic signals and the reflected acoustic signals.
    Type: Grant
    Filed: February 13, 2017
    Date of Patent: November 6, 2018
    Assignee: Saudi Arabian Oil Company
    Inventors: Maher I. Almarhoon, Yunlai Yang
  • Patent number: 10113902
    Abstract: A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: October 30, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richard T. Coates, Douglas E. Miller, Arthur H. Hartog, Colin A. Wilson, Dominic Brady, Henry Menkiti, Francois M. Auzerais, Ian David Richard Bradford
  • Patent number: 10077637
    Abstract: Apparatuses, systems and methods for deep formation evaluations, at least some of which include LWD tool modules positioned along a drillstring with a first LWD tool module that includes a transmit antenna, a second LWD tool module that includes a receive antenna and at least one position measurement device that at least partially determines spatial locations of the transmit and receive antennas relative to each other. A formation model is then matched to a surrounding formation based at least in part on said relative spatial locations.
    Type: Grant
    Filed: December 23, 2012
    Date of Patent: September 18, 2018
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Hsu-Hsiang Wu, Burkay Donderici, Robert Wayne Pennison
  • Patent number: 9939542
    Abstract: A method of processing seismic data so as to provide an image of a subsurface region, comprises providing plurality of migrated shot gathers that contain information about the region, summing portions of the migrated shot gathers to provide a pilot stack, partitioning the plurality of gathers into a plurality of groups and summing the gathers in each group to provide a substack, wherein each group includes at least two migrated shots and wherein a substack is generated from each group, applying an amplitude normalization algorithm to the pilot stack so as to generate an amplitude-normalized pilot stack, calculating a weight function by comparing each substack to the normalized pilot stack, weighting each substack using the weight function so as to generate a plurality of weighted substacks, summing overlapping portions of the weighted substacks so as to generate a output stack, and using the output stack to generate an image.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: April 10, 2018
    Assignee: SHELL OIL COMPANY
    Inventor: Kenneth Howell Matson
  • Patent number: 9897712
    Abstract: Embodiments described herein provide a method for acquiring de-ghosted data that can be utilized for calibration of a seismic source (air gun) model. Positions of a plurality of seismic receivers can be determined to enable efficient removal of an interference effect of ghost signals originating from mirrored versions of at least one seismic source that are received at the plurality of seismic receivers (hydrophones). Data (de-ghosted or near de-ghosted) can be acquired from the plurality of seismic receivers located at the determined positions by operating the at least one seismic source. A calibrated model of the at least one seismic source can be prepared based on the acquired (de-ghosted) data.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: February 20, 2018
    Assignee: PGS Geophysical AS
    Inventors: Jens Fredrik Barra Wisløff, Daniel Barker
  • Patent number: 9891901
    Abstract: Software specification translation includes: receiving a first software specification specified in a first programming language, a second software specification specified in a second programming language, a third software specification specified in a third programming language, the third software specification defining one or more data relationships between the first software specification and the second software specification. A combined representation of the first software specification and the second software specification is formed in a fourth programming language different from the first, second, and third programming languages. Connections are formed in the fourth programming language between a representation of the first software specification and the representation of the second software specification according to identified data relationships.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: February 13, 2018
    Assignee: Ab Initio Technology LLC
    Inventor: Jonathan Beit-Aharon
  • Patent number: 9842581
    Abstract: A transmitter for an acoustic logging tool includes an elongated housing, an acoustic energy generator, and a driver. The elongate housing defines a hollow interior and supports an acoustic energy generator, which includes four mutually orthogonally orientated bender bars that are electrically driveable to flex within the hollow interior in order to generate pressure-derived waves in a fluid surrounding the transmitter in use. The housing includes one or more transmissive windows via which flexing of the bender bars gives rise to propagation of one or more said waves in a said fluid. The driver electrically drives the bender bars to flex so as selectively to generate monopole, dipole, or quadrupole waves in a said fluid, with the poles of the dipole and quadrupole when generated selectively being aligned with normals to pairs of the bender bars or rotated 45° relative thereto.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: December 12, 2017
    Assignee: Reeves Wireline Technologies Limited
    Inventor: Terence Paul Mayor
  • Patent number: 9835609
    Abstract: A system and a method are provided for determining a viscosity of a fluid in a rock formation. The method includes determining a Stoneley mobility using a Stoneley wave measurement in a rock formation containing a fluid; determining a wireline formation tester (WFT) downhole fluid analysis (DFA) mobility by using a wireline formation tester in the rock formation; and determining a viscosity of the fluid based on the Stoneley mobility and the wireline formation tester (WFT) downhole fluid analysis (DFA) mobility.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: December 5, 2017
    Assignee: CHEVRON U.S.A. INC.
    Inventors: Chengbing Liu, Stephen Newton
  • Patent number: 9816372
    Abstract: The disclosure discloses an oil well logging surface system, which consists of a depth system, downhole power supplies, a front-end computer assembly, a control panel assembly, an expansion card module, a system power supply, a cooling system and an Electro-Magnetic Interference (EMI) system. The well logging surface system is connected with downhole instruments through a well logging cable, has functions of depth data acquisition, downhole instrument power supply, cable mode control, signal processing, downhole instrument data acquisition, data transmission and the like, may display data acquired by an internal bus on own dedicated display, and may further upload the data to upper computer software for an upper computer to process through a communication line.
    Type: Grant
    Filed: May 7, 2014
    Date of Patent: November 14, 2017
    Assignee: ARENA PETRO LTD.
    Inventors: Jun Wu, Ming Yang, Junzhang Wu
  • Patent number: 9817145
    Abstract: The invention relates to a downhole inertial mass seismic-source system, apparatus and method for use within a wellbore environment to provide seismic signal energy at a wellbore location. The system comprises a first inertial mass apparatus with a fluid plunger that is in contact with a first wellbore fluid chamber and a second wellbore fluid chamber, a second inertial mass apparatus with a fluid plunger in contact with the first well bore fluid chamber, a third inertial mass apparatus with a fluid plunger in contact with the second well bore fluid chamber, an Inertial Mass Control System (IMCS) connected to the first inertial mass apparatus, and a power source providing power to the Inertial Mass Control System.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: November 14, 2017
    Assignee: ConocoPhillips Company
    Inventors: Peter Eick, Joel Brewer
  • Patent number: 9793474
    Abstract: A method of forming a non-volatile memory device. The method includes providing a substrate having a surface region and forming a first dielectric material overlying the surface region of the substrate. A first electrode structure is formed overlying the first dielectric material and a p+ polycrystalline silicon germanium material is formed overlying the first electrode structure. A p+ polycrystalline silicon material is formed overlying the first electrode structure using the polycrystalline silicon germanium material as a seed layer at a deposition temperature ranging from about 430 Degree Celsius to about 475 Degree Celsius without further anneal. The method forms a resistive switching material overlying the polycrystalline silicon material, and a second electrode structure including an active metal material overlying the resistive switching material.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: October 17, 2017
    Assignee: CROSSBAR, INC.
    Inventors: Xin Sun, Sung Hyun Jo, Tanmay Kumar
  • Patent number: 9753170
    Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to determine a compressional velocity (CV) of a geological formation, to determine a reflection coefficient (RC) associated with the geological formation, and to determine a density of the geological formation based on the CV and the RC. The CV and RC may be determined from values associated with sonic and ultrasonic velocity measurements. Additional apparatus, systems, and methods are described.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: September 5, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Batakrishna Mandal, Arthur Cheng, Nigel Clegg, Jennifer Anne Market
  • Patent number: 9715037
    Abstract: An integrated acoustic and induction logging tool enables efficient logging operations and reduces logging string length. In some of the disclosed embodiments, an integrated acoustic and induction logging tool includes a mandrel compatible with acoustic logging operations and induction logging operations. The integrated acoustic and induction logging tool also includes an acoustic logging transducer set and an induction logging coil set, where a plurality of transducers of the acoustic logging transducer set are interspersed among a plurality of coils of the induction logging coil set along the mandrel. A related assembly method includes obtaining a mandrel compatible with acoustic logging and induction logging. The method also includes assembling an acoustic logging transducer set and an induction logging coil set along the mandrel, where a plurality of transducers of the acoustic logging transducer set are interspersed among a plurality of coils of the induction logging coil set along the mandrel.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: July 25, 2017
    Inventors: Evan Lloyd Davies, Dustin Riley Stubbs, David Orlando Torres
  • Patent number: 9683441
    Abstract: A power supply for a wired pipe system is provided. The power supply includes energy storage capabilities, and provides for operation in high temperature environments.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: June 20, 2017
    Inventors: Riccardo Signorelli, John Jacob Cooley
  • Patent number: 9644477
    Abstract: An embodiment includes an apparatus for wireless communications in a drilling operations environment. In an embodiment, the apparatus includes an instrument hub that is inline with drill pipe of a drill string. The instrument hub includes a sensor to receive downhole communications from downhole. The instrument hub also includes a transmitter to wireless transmit data representative of the downhole communications to a data processor unit.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: May 9, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jeffrey L Moore, Vimal V. Shah, Wallace R. Gardner, Donald G. Kyle, Malcolm Douglas McGregor, Randal Thomas Beste, Jesse Kevin Hensarling, Sergei A Sharonov
  • Patent number: 9638830
    Abstract: A method for optimizing drilling operations. The method includes providing an earth model of a volume having a well, obtaining petrotechnical data about the volume while drilling the well, comparing the petrotechnical data with the earth model, updating the earth model with the petrotechnical data based on the comparison, and modifying a drilling plan of the well using the updated earth model.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 2, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Joerg H. Meyer, Annabelle Kania, Mark Egan, Andrew Hawthorn
  • Patent number: 9632194
    Abstract: A technique includes determining at least one attribute of a slowness vector associated with a seismic gather based on pressure data and an indication of particle motion that is measured by at least one seismic sensor while in tow.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: April 25, 2017
    Assignee: WESTERNGECO L.L.C.
    Inventors: Massimiliano Vassallo, Clement Kostov, Alfonso Gonzalez
  • Patent number: 9628189
    Abstract: Optimization systems and methods are described configured to optimize filter coefficients in pulse shaping filters in transmitters and matched filters in receivers to maximize Q-factor in a fiber optic system. The systems and methods include receiving a measured Q-factor for one or more channels; iteratively adjusting filter coefficients of the pulse shaping filters and the matched filters to maximize a measured Q-factor of a channel of the one or more channels; and setting the filter coefficients of the pulse shaping filters and the matched filters to optimized values based on the iteratively adjusting.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: April 18, 2017
    Assignee: Ciena Corporation
    Inventors: Benoît Châtelain, Priyanth Mehta
  • Patent number: 9612352
    Abstract: Embodiments of super-virtual borehole sonic interferometry include machines, systems, and methods that can increase the signal-to-noise ratio of sonic log waveforms. Embodiments include performing a common shot gather and recording traces with a sonic tool, repositioning the tool and performing another common-shot gather; cross-correlating each trace with neighboring corresponding traces for each common shot gather, which leads to creating the virtual trace response due to a redatumed virtual source; stacking the common virtual traces with common ray paths for different common shot gathers; convolving the virtual traces with an actual trace that travels from the source through the virtual source to a receiver on the tool; and stacking the traces having common ray paths. The resulting waveforms can have a signal-to-noise ratio significantly greater than the signal-to-noise ratio of the original waveforms, due to the two stacking operations following each redatuming step.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: April 4, 2017
    Assignees: Saudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
    Inventors: Abdulrahman Alshuhail, Ali Abdulhameed Aldawood, Abdullatif Al-Shuhail
  • Patent number: 9581716
    Abstract: Methods and apparatus for estimating borehole mud slownesses are disclosed. An example method includes estimating a borehole drilling fluid slowness value based on a tube wave modulus value, a tube-wave slowness value, and a drilling fluid density value. The borehole is associated with an anisotropic elastic medium.
    Type: Grant
    Filed: January 21, 2013
    Date of Patent: February 28, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Florian Karpfinger, John Walsh, Romain Prioul
  • Patent number: 9575195
    Abstract: A method to detect presence of hydrocarbons in a subterranean formation.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 21, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Richard Lewis, Chi Duru, Rita Okoroafor
  • Patent number: 9568629
    Abstract: Implementations provide identification of rock boundaries and evaluation of rock interval velocities in subterranean zones. Actions can include receiving acoustic signals associated with sounds produced by a well tool implemented to perform a well operation by contacting a portion of a subterranean zone, the acoustic signals being composed of source acoustic signals and reflected acoustic signals produced in response to the source acoustic signals, processing the acoustic signals to determine the source acoustic signals and the reflected acoustic signals and determining properties of the subterranean zone based on the source acoustic signals and the reflected acoustic signals.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 14, 2017
    Assignee: Saudi Arabian Oil Company
    Inventors: Maher I. Almarhoon, Yunlai Yang
  • Patent number: 9562428
    Abstract: An apparatus for estimating a first property in a borehole penetrating the earth is described. The apparatus includes a carrier configured to be conveyed through the borehole. The apparatus also includes a first sensor disposed at the carrier and configured to perform a first measurement of the first property, the first sensor having a first direction of sensitivity; a second sensor disposed at the carrier and configured to perform a second measurement of a second property, the second sensor having a second direction of sensitivity; and a processor configured to receive the first and second measurements and to correct the first measurement using the second measurement in order to estimate the first property.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: February 7, 2017
    Assignee: BAKER HUGHES INCORPORATED
    Inventors: Sven Hollstein, Eduard Kirchmeier, Hans-Juergen Faber, Christian Fulda
  • Patent number: 9557435
    Abstract: Acoustic isolators are disclosed herein. An example apparatus includes a transmitter to transmit an acoustic signal. The example apparatus also includes an acoustic isolator substantially surrounding a receiver, and the receiver is to receive the acoustic signal via an opening in the acoustic isolator. The transmitter and the acoustic isolator are coupled to a base. The acoustic isolator includes a first layer coupled to a second layer defining a plurality of spaces. The second layer is to provide an acoustic impedance mismatch.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: January 31, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Hitoshi Sugiyama, Yoshino Sakata
  • Patent number: 9513396
    Abstract: In some embodiments, apparatus and systems, as well as methods, may operate to record a plurality of acoustic waveforms comprising cross-dipole waveforms and corresponding to acoustic waves received 5 at azimuthally orthogonal dipole receiver arrays surrounded by a geological formation, the waves being generated by azimuthally orthogonal dipole transmitter arrays. Further activity may include defining an objective function dependent on the cross-dipole waveforms, eigenvalues, an azimuth angle corresponding to an 10 orientation of the transmitter and receiver arrays; minimizing the objective function with respect to said angle and the set of auxiliary parameters; and determining at least one property of the geological formation based on the global minimum. Additional apparatus, systems, and methods are disclosed.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: December 6, 2016
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Mark V. Collins, Arthur Cheng
  • Patent number: 9488744
    Abstract: A system and method for estimating seismic anisotropy of subsurface formations with high resolution. A method for determining anisotropy parameters of subsurface formations includes generating a synthetic reflectivity gather from a vertical well log. Times of a surface seismic gather are adjusted to those of the synthetic gather. Low-cut filtering is applied to the surface seismic gather. Anisotropy parameters are generated as a difference of the filtered seismic gather and the synthetic gather. An anisotropy value is assigned to each of plurality of layers of a formation based on the generated anisotropy parameters.
    Type: Grant
    Filed: September 3, 2014
    Date of Patent: November 8, 2016
    Assignee: UNIVERSITY OF HOUSTON SYSTEM
    Inventors: Leon Thomsen, Rongrong Lin
  • Patent number: 9482782
    Abstract: Systems, methods, and transmitter assemblies for exploring geophysical formations at great depths. In order to explore the formation, transmitter assemblies with a size less than 500 nanometers are inserted into the formation. The transmitter assemblies include power supplies or are charged at charging stations, allowing the transmitter assemblies to propel through the formation, analyzing fluids and conditions as each moves through the formation. The transmitter assemblies can communicate with a machine on the surface via a series of receivers and transmitters located in the wellbore. The machine on the surface is able to combine and analyze the data from the nanorobots to create a three dimensional map of the formation. The map shows the locations of pathways through the formation, pockets of hydrocarbons within the formation, and the boundaries of the formation.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: November 1, 2016
    Assignee: Saudi Arabian Oil Company
    Inventors: Rami Ahmed Kamal, Modiu L. Sanni, Mazen Y. Kanj
  • Patent number: 9470807
    Abstract: A fiber optic distributed vibration system for detecting seismic signals in an earth formation is provided. The system includes a fiber optic cable deployed in a borehole that extends into the earth formation and which is configured to react along its length to a seismic wave incident on the fiber optic cable from outside the borehole. An optical source launches an optical signal into the fiber optic cable while the seismic wave is incident thereon. A receiver detects coherent Rayleigh noise (CRN) produced in response to the optical signal. A processing circuit processes the detected CRN signal to determine characteristics of the earth formation.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: October 18, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Richard T. Coates, Douglas E. Miller, Arthur H. Hartog, Colin A. Wilson, Dominic Brady, Henry Menkiti, Francois M. Auzerais, Ian David Richard Bradford
  • Patent number: 9383462
    Abstract: A seismic generation system may include an electrical source, a conductor coupled to the electrical source and to be positioned in a wellbore in a subterranean formation with a casing therein, and a seismic generation source assembly to be positioned in the wellbore and coupled to the conductor. The seismic generation source assembly may include a source element having a sealed housing, an armature within the sealed housing, source electromagnets coupled to the armature, and electromagnetic clamps coupled to the armature, each electromagnetic clamp having opposite magnetic poles. The sealed housing may include respective ferromagnetic portions adjacent the opposite magnetic poles of each electromagnetic clamp, and non-ferromagnetic portions between the opposite magnetic poles of each electromagnetic clamp.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: July 5, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: James Minto, Robert Lanza, Bradley Bryans, Leo M. Dekkers, Shantonu Ray
  • Patent number: 9322947
    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: Grant
    Filed: March 27, 2014
    Date of Patent: April 26, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Chung Chang, Abbas Arian, Randall Bennett Jones, Gary Kainer, Arthur Cheng