With Drill Or Drilling Patents (Class 250/254)
  • Patent number: 11066926
    Abstract: A downhole logging tool includes a radiation generation source operable to emit radiation into a formation surrounding the tool, a radiation detector fixed relative to the radiation generation source and operable to detect backscattered radiation from the formation surrounding the tool, and a sleeve positioned around the radiation detector to shield the radiation detector from a first portion of the backscattered radiation. The sleeve includes at least one aperture for exposing the radiation detector to a second portion of the backscattered radiation, in which the second portion of the backscattered radiation emanates from an inspected region of the formation facing the at least one aperture. A signal measured at the radiation detector corresponds to the inspected region of the formation, and the position of the at least one aperture is changeable with respect to the formation to distinctly inspect different regions of the formation.
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: July 20, 2021
    Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
    Inventors: Marc Ramirez, Feyzi Inanc
  • Patent number: 10838078
    Abstract: A method for searching for and detecting gamma radiation sources in conditions of nonuniform radioactive contamination is provided. Stages in which a source of maximally active radiation is determined, the radiation power is measured with a collimated detector and at the same time the distance to the source is determined with the aid of a laser detector rangefinder. Readings of the laser rangefinder and the value of a dose rate are established by the detector are recorded. The dose rate of the radiation of the actual source is calculated, after which, to verify the distance measured to the radiation source, the aiming axis of the rangefinder is moved for a distance horizontally. The measurement is repeated and the distance recorded. The results of successive measurements of the distance are compared. If there is a divergence in the measurements within the laser rangefinder error limits, the information is acknowledged as reliable.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: November 17, 2020
    Assignee: STATE ATOMIC ENERGY CORPORATION “ROSATOM”ON BEHALF OF THE RUSSIAN FEDERATION
    Inventors: Victor Sergeevich Krusanov, Oleg Nikolaevich Romanov
  • Patent number: 10697289
    Abstract: The use of an environmental sensing wireline standoff may improve operations during borehole logging procedures. An environmental sensing wireline standoff may comprise a lower body, an upper body, and a cable insert. The cable insert may further comprise a first segment and a second segment, wherein the cable insert is disposed between the lower body and the upper body, and wherein the cable insert is configurable to clamp directly onto a wireline cable. The environmental sensing wireline standoff may further comprise a sensor package. A method of assembling an environmental sensing wireline standoff may comprise securing a first segment of a cable insert into a lower body, securing a second segment of the cable insert into an upper body, attaching the sensor package to the upper body, and securing the lower body to the upper body.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: June 30, 2020
    Inventors: Guy Wheater, Stuart Huyton
  • Patent number: 10598012
    Abstract: A downhole tool to make one or more downhole measurements of laser-induced vaporization and/or pyrolysis of hydrocarbons is provided and disposed at a desired location within a wellbore. A tool head of the downhole tool is brought into sealing engagement with the wellbore wall. The fluid within an interior region enclosed by the tool head and the wellbore wall is evacuated and a measurement spot is irradiated with a laser to generate volatile hydrocarbons and/or pyrolytic hydrocarbons. Measurements are made on the volatile hydrocarbons and/or pyrolytic hydrocarbons and one or more formation properties are inferred based on the measurements. A low level of laser radiation intensity, irradiating some or all of the wellbore wall enclosing the interior region, may be used to prevent measurement contamination, and both medium power and high power levels of laser radiation may be used to first vaporize and then pyrolyze the hydrocarbons.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: March 24, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mohammed Badri, Reza Taherian
  • Patent number: 10502046
    Abstract: A downhole tool operable for conveyance within a wellbore extending into a subterranean formation, and for obtaining one or more measurements of the subterranean formation, wherein the downhole tool comprises a sensor, a pressure housing containing the sensor and mounted on an external surface of the downhole tool, and a sliding stabilizer covering the pressure housing.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: December 10, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ahmed Amine Mahjoub, Sebastien Isambert, Emmanuel Fayeulle, Didier Fouillou, Michael L. Evans, Christian Stoller
  • Patent number: 10473814
    Abstract: A downhole assembly includes a drill collar, the drill collar having an outer wall and an insert, the insert positioned within drill collar. The insert has a bore therethrough. The downhole assembly further includes at least one sensor within the insert, wherein the sensor is a gamma ray detector.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: November 12, 2019
    Assignee: SCIENTIFIC DRILLING INTERNATIONAL, INC.
    Inventor: Medhat Mickael
  • Patent number: 10472951
    Abstract: A downhole ultrasonic transducer (10) used to transmit and/or receive ultrasonic waves in a hydrocarbon well where a fluid is present comprises: a metal housing (11) defining an internal cavity (12) isolated from the fluid of the hydrocarbon well (100) by a membrane wall (13) made of metal or metal alloy; a piezoelectric element (14) mounted inside the internal cavity (12), the piezoelectric element (14) having a front side (20) mechanically coupled on the membrane wall (13); wherein: the internal cavity (12) is at a pressure unrelated to a hydrocarbon well pressure; a back side (21) of the piezoelectric element (14) is arranged to be free to oscillate in the internal cavity (12) so as to generate a high acoustic impedance mismatch between the piezoelectric element (14) and the internal cavity (12) at the back side (21) and to maximize acoustic transmission at the front side (20); and a thickness (ei) of the membrane wall (13) is such that there is a common resonance between the membrane wall and the piezo
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: November 12, 2019
    Assignee: OPENFIELD
    Inventors: Eric Donzier, Linda Abbassi, Emmanuel Tavernier
  • Patent number: 10473802
    Abstract: Estimating a parameter of interest, comprising intermittently generating a calibration radiation source in the carrier, the calibration radiation source comprising a radioisotope producing radiation to which the radiation sensor is exposed. Methods include measuring a calibration response from the radiation sensor with measurement circuitry during the exposure to produce calibration information, and measuring another response from the radiation sensor with the measurement circuitry to produce measurement information after the radioisotope has decayed to a reduced radiation level such that the measurement information is substantially unaffected by the radioisotope. The radioisotope may be a positron emitter producing radiation by annihilation of the positrons emitted from the radioisotope. The radiation produced may thus be gamma rays.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 12, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventor: Matthew E. McCleskey
  • Patent number: 10400574
    Abstract: An apparatus for inspecting integrity of a multi-barrier wellbore is described. The apparatus includes at least one source to generate radiation to impinge a target volume of the wellbore. The apparatus includes a source collimator having a plurality of alternating blocking channels and passing channels to direct radiation to impinge the target volume, such that the radiation directed from each passing channel forms a plurality of field of views extending radially into the target volume. The apparatus further includes at least one detector to receive backscatter rays arising from each respective field of view from the plurality of field of views and to generate an image representative of an inspected portion of the wellbore. The apparatus is useful for inspecting very small volumes in the multiple barriers of the wellbore and determine the integrity of the wellbore based on the different densities in the image of the inspected portion.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: September 3, 2019
    Assignee: General Electric Company
    Inventors: Ansas Matthias Kasten, Juan Pablo Cilia, John Scott Price, William Robert Ross, Chengbao Wang, Sudeep Mandal
  • Patent number: 10364673
    Abstract: A borehole fluid imaging system includes a plurality of radiation sources located circumferentially around the borehole. A plurality of radiation detectors are located circumferentially around the borehole. The plurality of radiation detectors detect the radiation transmitted by each of the respective ones of the plurality of radiation sources. A controller is coupled to the plurality of radiation detectors to determine an attenuation of the radiation at the plurality of detectors and generate an image of the fluid in response to the attenuation of the radiation.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: July 30, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Satyan Gopal Bhongale, John L. Maida, Jr., Wolfgang Hartmut Nitsche
  • Patent number: 10353101
    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: December 21, 2016
    Date of Patent: July 16, 2019
    Assignee: BAKER HIGHES, A GE COMPANY, LLC
    Inventors: Sven Hollstein, Eduard Kirchmeier, Hans-Juergen Faber, Christian Fulda
  • Patent number: 10120099
    Abstract: Devices and methods for a rugged semiconductor radiation detector are provided. The semiconductor detector may include a hermetically sealed housing and a semiconductor disposed within the housing that has a first surface and a second surface opposite one another. A first metallization layer may at least partially cover the first surface of the semiconductor and a second metallization layer may at least partially cover the second surface of the semiconductor. The first metallization layer or the second metallization layer, or both, do not extend completely to an edge of the semiconductor, thereby providing a nonconductive buffer zone. This reduces electrical field stresses that occur when a voltage potential is applied between the first metallization layer and the second metallization layer and reduces a likelihood of electrical failure (e.g., due to arcing).
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 6, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATON
    Inventors: Frederic Gicquel, Olivier G. Philip, Christian Stoller, Zilu Zhou
  • Patent number: 10067850
    Abstract: A method for real-time analysis of results from a load test performed on a target website includes calculating first-level aggregated test results within each of a plurality of load server instances that generate a load on the target website. The first-level aggregated test results are calculated from data points received by each of the load server instances from the target website. The first-level aggregated test results include a sum of the data points, a count of the number of the data points, a sum of squares of the data points, and an average of the data points. A standard deviation result (STDEV) is calculated and chart is generated on a display via a graphical user interface. The chart provides a visual representation of a performance metric for the load test based on the standard deviation result.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: September 4, 2018
    Assignee: Akamai Technologies, Inc.
    Inventors: Charles A. Vazac, Tal Broda, Michael Hemmert, Mukul Sharma
  • Patent number: 10012756
    Abstract: A method for determining a petrophysical property of a formation includes detecting radiation events resulting from imparting neutrons into the formation at an energy level of at least 1 MeV. The petrophysical property is determined from an elastic scattering cross section of the formation. The elastic scattering cross section is related to a number of detected radiation events.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: July 3, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tong Zhou, Christian Stoller
  • Patent number: 9920617
    Abstract: A downhole tool includes a tool body having an outer surface portion and an inner surface portion and a recess formed in one of the outer surface portion and inner surface portion. At least one removable electronic component access member is detachably mounted to the tool body. The removable electronic component access member provides access to electronic components housed in the recess. A metallic seal is provided on at least one of the tool body and the removable electronic component access member. The metallic seal prevents fluid ingress into the recess through the at least one removable electronic component access member.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: March 20, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Stephan Mueller, Hans Robert Oppelaar, Henning Rahn, Carsten Haubold, Robert Buda, Ingo Roders, Detlev Benedict
  • Patent number: 9874551
    Abstract: A method for determining mineralogy of a formation includes determining a model of arenites in the formation by performing a first type of linear regression on a plurality of elemental dry weights of the formation based upon a sum of elemental dry weights of calcium and magnesium being at least a given value, or performing a second type of linear regression on the elemental dry weights based upon the sum of the elemental dry weights of elemental calcium and magnesium being less than the given value. A model of arkoses in the formation is determined by performing a third type of linear regression on the elemental dry weights. A partitioning function is then determined. The mineralogy of the formation is then determined by applying the partitioning function to the model of arenites and the model of arkoses, and adding the model of arenites and the model of arkoses together.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 23, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Susan Herron, Michael Herron, Dale May
  • Patent number: 9851465
    Abstract: A tool for communicating data between multiple locations downhole includes a tool body, a first antenna including at least one electrode disposed within a wall and electrically insulated from the tool body, and an electronic circuit configured to generate an encoded electrical signal and propagate the encoded signal through the electrode into a medium surrounding the tool, and a second antenna coupled to the tool body, and an electronic circuit configured to receive an electrical signal induced by the second antenna.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: December 26, 2017
    Assignee: Well Resolutions Technology
    Inventors: Tsili Wang, Borislav J. Tchakarov
  • Patent number: 9835758
    Abstract: A method for analyzing a formation includes entering into a computer a number of detected gamma rays resulting from imparting neutrons into the formation. The detected gamma rays are characterized by energy levels thereof. A number of detected gamma rays in each energy level comprises a measured spectrum. In the computer, a non-Gaussian filter is applied to a reference spectrum to match the measured spectrum in shape. The filtered reference spectrum and measured spectrum are used to determine a fractional volume of at least one component of the formation.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: December 5, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tong Zhou, James A. Grau
  • Patent number: 9771793
    Abstract: The invention relates to a wellbore-lining tubing comprising at least one window pre-formed in the wall of the tubing and a device for selectively generating a fluid pressure pulse, and to a method of forming a lateral wellbore employing such a tubing. In an embodiment, a wellbore-lining tubing (130m) is disclosed which comprises: a tubing wall (32m), an internal fluid flow passage (30m), and at least one window (154m) pre-formed in the wall of the tubing; a device (34m) for selectively generating a fluid pressure pulse, the device located at least partly in a space (36m) provided in the wall of the tubing; and a coupling (190) for receiving a deflection tool (192) so that the deflection tool can be secured to the tubing and employed to divert a downhole component (202) through the window in the tubing wall.
    Type: Grant
    Filed: May 20, 2013
    Date of Patent: September 26, 2017
    Assignee: Halliburton Manufacturing and Services Limited
    Inventors: Simon Benedict Fraser, William Brown-Kerr, Bruce Hermann Forsyth McGarian
  • Patent number: 9599498
    Abstract: Method for determining the density (D) of a multiphase fluid (F) flowing through a pipe (1) and containing a gas (G) which determines a fluctuation of the actual instantaneous density of the fluid (F), said method comprising the following steps: defining a series of consecutive time periods (S0, S) which are shorter than the time length corresponding to the highest frequency-component of the fluctuation of the actual instantaneous density; conveying through a section (2) of the pipe (1) a photon beam (3) suited to undergo an attenuation while crossing the fluid (F); counting the actual number (A) of photons of the beam (3) which cross the pipe (1) during a first time period (S) of the series; calculating a corrected count (C) as the weighted average value of the actual count (A) and of the corrected count (C0) calculated for the preceding time period (S0); converting the value of the corrected count (C) into a corresponding value of the density (D) of the multiphase fluid (F) for the first time period (S) thr
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: March 21, 2017
    Assignee: PIETRO FIORENTINI SPA
    Inventors: Paolo Aditeo Nardi, Paolo Calciolari, Stefano Bernardi
  • Patent number: 9599729
    Abstract: Methods and related systems are described for gamma-ray detection. A gamma-ray detector is made depending on its properties and how those properties are affected by the data analysis. Desirable properties for a downhole detector include; high temperature operation, reliable/robust packaging, good resolution, high countrate capability, high density, high Z, low radioactive background, low neutron cross-section, high light output, single decay time, efficiency, linearity, size availability, etc. Since no single detector has the optimum of all these properties, a downhole tool design preferably picks the best combination of these in existing detectors, which will optimize the performance of the measurement in the required environment and live with the remaining non-optimum properties.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: March 21, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Bradley Albert Roscoe, James A. Grau, Zilu Zhou, Kenneth E. Stephenson, Markus Berheide
  • Patent number: 9593983
    Abstract: A downhole tool to make one or more downhole measurements of laser-induced vaporization and/or pyrolysis of hydrocarbons is provided and disposed at a desired location within a wellbore. A tool head of the downhole tool is brought into sealing engagement with the wellbore wall. The fluid within an interior region enclosed by the tool head and the wellbore wall is evacuated and a measurement spot is irradiated with a laser to generate volatile hydrocarbons and/or pyrolytic hydrocarbons. Measurements are made on the volatile hydrocarbons and/or pyrolytic hydrocarbons and one or more formation properties are inferred based on the measurements. A low level of laser radiation intensity, irradiating some or all of the wellbore wall enclosing the interior region, may be used to prevent measurement contamination, and both medium power and high power levels of laser radiation may be used to first vaporize and then pyrolyze the hydrocarbons.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 14, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mohammed Badri, Reza Taherian
  • Patent number: 9540889
    Abstract: A downhole tool for use in coiled tubing well operations. The tool includes a gamma ray detector for determining well location information for an associated coiled tubing application. The well location information may relate to well depth and/or the locating and identifying of a particular side branch or lateral leg of the well. Additionally, the gamma ray detector may be utilized to monitor dynamic well conditions in real-time such as the flow of injected fluids or the effectiveness of clean out applications via the coiled tubing.
    Type: Grant
    Filed: November 13, 2009
    Date of Patent: January 10, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Guillaume Revellat, Robert Van Kuijk, Robert Greenaway, Sarmad Adnan
  • Patent number: 9441481
    Abstract: A method for identifying the type of a sampled formation fluid, such as a hydrocarbon, is provided. In one embodiment, the method includes measuring absorbance by a sample of a formation fluid at multiple wavelengths of electromagnetic radiation with a spectrometer. The method also includes distinguishing between multiple fluid types to identify a fluid type of the sample most likely to match an actual fluid type of the sample based on the measured absorbance at two or more wavelengths of the multiple wavelengths. Additional systems, devices, and methods are also disclosed.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 13, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kentaro Indo, Julian Pop, Kai Hsu
  • Patent number: 9368901
    Abstract: A connector system for reducing particulate matter may include a first unit for supplying signals and a second unit for receiving and/or relaying the signals. The signals may be for power generation and/or communications. A coupling may be positioned between the first unit and second unit. The coupling may include a center pin attached to the first unit and for receiving a signal at a first potential. The coupling may further include an outer case attached to the first unit and for receiving a signal at a second potential. The coupling may also have a seal and a spring. The seal and spring may surround the outer case. The spring may engage the second unit and may pass signals between the first unit and the second unit. The spring may comprise a canted coil spring for supporting load forces and for passing electrical current.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: June 14, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: Frederic Gicquel
  • Patent number: 9354050
    Abstract: In some embodiments, apparatus and systems, as well as methods, may operate to acquire borehole standoff data (321), segregate the standoff data into a plurality of azimuthal bins (363), derive a plurality of diameters from the standoff data in the bins, determine an average borehole diameter from the plurality of diameters (367), calculate a standard deviation from the average borehole diameter (375), and compute a caliper measurement (383), a major elliptical axis length, and a minor elliptical axis length based on the average borehole diameter and the standard deviation (387).
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: May 31, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Gordon L. Moake
  • Patent number: 9316056
    Abstract: A drilling rig with bidirectional dual eccentric reamer which forms a larger wellbore than originally drilled and larger than the drill bit diameter. The bidirectional dual eccentric reamer has a shaft with a longitudinal axis supporting a plurality of reamer portions. The reamer portions have a plurality of helical blades of varying thicknesses. The plurality of helical blades can have a plurality of cutting nodes and cutting inserts. The plurality of helical blades have a center of eccentric rotation which is offset from the longitudinal axis, thereby creating an eccentric rotation which allows for the formation of a larger wellbore than originally drilled and larger than the drill bit diameter.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: April 19, 2016
    Assignee: ALASKAN ENERGY RESOURCES, INC.
    Inventor: Lee Morgan Smith
  • Patent number: 9040901
    Abstract: A process analyzes gases emitted during drilling of a borehole using oil based mud. The process comprises (a) using mass spectrometry, analyzing the gas recovered during drilling through a hydrocarbon-poor zone at spaced apart locations to provide a mass spectrum for the gas emitted at each of the locations; (b) using mass spectrometry, analyzing the gas recovered during drilling through a hydrocarbon-rich zone at one location to provide a mass spectrum for the gas emitted at the location; (c) using spectra from the measurements in (a) to extrapolate and predict a peak in a mass spectrum caused by compounds in the mud at a time when the drilling is proceeding through the hydrocarbon-rich zone; and (d) comparing the spectrum obtained in (b) with the predicted spectrum obtained in (c) to further predict at least one of the quantity and identity of the formation gases emitted from the hydrocarbon-rich zone.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: May 26, 2015
    Assignee: HRH LIMITED
    Inventor: Christopher John Harlow
  • Publication number: 20150115144
    Abstract: In an embodiment, scintillator can have a Figure of Merit of 0.4 at a temperature greater than 120° C., a Figure of Merit of at least 0.05 at a temperature of at least 160° C., or both. In another embodiment, a scintillator can include a Br-containing or an I-containing elpasolite. Either scintillator can be used in a radiation detection apparatus that include a photosensor and a radiation detection apparatus. Such an apparatus can be used to detect and discriminate two different types of radiation over a wide range of temperatures. The radiation detection apparatus can be useful in drilling, well logging, or as a portal detector.
    Type: Application
    Filed: October 15, 2014
    Publication date: April 30, 2015
    Inventors: Kan Yang, Peter R. Menge, Julien Lejay, Vladimir Ouspenski
  • Patent number: 9012836
    Abstract: A neutron logging tool has multiple detectors spaced about the circumference of the tool. The detectors are shielded from each other such that each detector detects gamma rays from the area of the borehole and formation to which it is closest. The log readings from each detector can be associated with the orientation of that detector. The orientation-specific log readings can then be aggregated to form an azimuthal log which can be used to analyze pre-fractured and/or post-fractured formations.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 21, 2015
    Assignee: Weatherford Technology Holdings, LLC
    Inventors: Paul Wilson, Richard R. Pemper, Darryl Trcka
  • Publication number: 20150097112
    Abstract: A logging while drilling (LWD) tool can include a shock mounted sensor package with thermal isolation. For example, a LWD tool can include a pressure housing surrounding a cavity. A sensor package that includes at least one end connection can be coupled within the cavity. The LWD tool can also include a support structure coupled to the pressure housing and supporting the end connection of the sensor package. The support structure is configured to provide damping along at least one of the axial, radial, and azimuthal axes. The end connection is configured to inhibit thermal conductivity between the support structure and the sensor package.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 9, 2015
    Inventors: Paul L. Sinclair, Robert Scott Neves
  • Patent number: 8993957
    Abstract: A downhole measurement apparatus includes a tool body supporting a logging tool. The logging tool includes a detector outsert coupled into and exposed through an exterior pocket of the tool body to position the outer surface of the outsert adjacent or in close proximity to the outer diameter of the tool body. A stabilizer or off-center stabilizer may be provided to further deflect the outsert portion of the logging tool toward an earth formation to increase detector proximity to the formation. The axial distance between the detector and a nuclear source can be calibrated using configurations of the nuclear source holder and the outsert. Retention mechanisms for the source holder and the outsert further enhance proximity and calibration.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: March 31, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ricardo Ortiz, Michael Dewayne Finke, Kristopher V. Sherrill
  • Patent number: 8990020
    Abstract: A system and method for use in a downhole tool having a fluid density measurement device positioned therein are provided. In one example, the method includes deploying the downhole tool at a first station in a borehole. The downhole tool is moved from the first station to a second station in the borehole. A plurality of fluid density values of fluid within the borehole between the first and second stations are measured using the fluid density measurement device in the downhole tool. The plurality of fluid density values may represent a continuous log of fluid densities between the first and second stations.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Harold Pfutzner, Peter D. Wraight
  • Patent number: 8912000
    Abstract: Methods and apparatus for obtaining a mass spectrum of a sample and determining a concentration of a component of the sample by utilizing a model of chemical and electron ionization and the obtained mass spectrum.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: December 16, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Pierre J. Daniel, Julian J. Pop, Reza Taherian, Bruno Drochon
  • Publication number: 20140291499
    Abstract: The present invention provides systems and methods capable of improving the efficiency and effectiveness of leaching operations. In one embodiment, the present invention may utilize a coiled tubing directional drilling system capable of treating interior portions of the heap/formation. In one embodiment, the present invention may utilize a system and method capable of capturing real time temperature and resistivity data pertaining to pregnant solution characteristics in the heap/formation. In one embodiment, the present invention may utilize one or more wire line deployed X-Ray Fluorescence (XRF) spectrometers capable of quantitatively measuring concentrations of desired metals in the heap/formation during leaching operations. In one embodiment, the present invention utilizes multiple passes of elemental capture spectroscopy logs acquired at regular time intervals to monitor metal concentrations during leaching operations.
    Type: Application
    Filed: December 2, 2011
    Publication date: October 2, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Gilles Mathieu, Kent Lang, Peter Wraight, Roland Banas, James A. Grau, Edward Clayton
  • Publication number: 20140166871
    Abstract: Disclosed are systems and methods for monitoring drilling fluid components in real time. One system includes a flow path fluidly coupled to a borehole and containing a drilling fluid having at least one component present therein, an optical computing device arranged in the flow path and having at least one integrated computational element configured to optically interact with the drilling fluid and thereby generate optically interacted light, and at least one detector arranged to receive the optically interacted light and generate an output signal corresponding to a characteristic of the at least one component.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Dale E. Jamison, Stephen W. Almond
  • Patent number: 8742328
    Abstract: Logging-while-drilling tools incorporating an electronic radiation generator, such as an electronic X-ray generator, and a method for using the same are provided. One example of such a logging-while-drilling tool may include a circumferential drill collar, a chassis disposed radially interior to the drill collar, and an electronic X-ray generator and an X-ray detector disposed within the chassis. The electronic X-ray generator may emit X-rays out of the logging-while-drilling tool into a subterranean formation. The X-ray detector may detect X-rays that return to the logging-while-drilling tool after scattering in the subterranean formation, which may be used to determine a density and/or a lithology of the subterranean formation.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: June 3, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Matthieu Simon, Peter Wraight, Christian Stoller, Kenneth E. Stephenson, Andrew Bazarko
  • Publication number: 20140103202
    Abstract: A through casing formation evaluation tool string 1000, 2000, 3000 including a conveyance string 100, a sonic array tool 200, a pulsed neutron tool 400 and one or more downhole memory modules 160, 540, 550. A method of through casing formation evaluation and casing and cementing integrity evaluation includes lowering a tool string into a cased wellbore; concurrently collecting data with the sonic array tool and pulsed neutron tool and transmitting at least a portion of the collected data via a conveyance string to a CPU located at the surface of the earth; storing a portion of the collected data in a memory module disposed in the tool string; removing the tool string from the wellbore; processing the collected data in the CPU to obtain selected rock property data about the one or more of the geologic formations and/or cement integrity.
    Type: Application
    Filed: December 17, 2013
    Publication date: April 17, 2014
    Inventors: Kwokshan Kwong, Daniel Francois Dorffer
  • Patent number: 8614578
    Abstract: The present disclosure relates to determining the attenuation of an electromagnetic signal passing through a conductive material. An antenna is provided and placed in relatively close proximity to the conductive material. An alternating current is passed through the antenna and the impedance of the antenna is measured. The attenuation is determined using the measured impedance. A single frequency measurement may be made, or multiple measurements using different frequencies may be made. Grouped parameters based on properties of the material and the frequency of the current are used to relate the coil impedance to the attenuation. A current frequency for which the ratio of the antenna's resistive part of the impedance to the angular frequency of the current is substantially insensitive to at least one of the parameters is preferred.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: December 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Guozhong Gao, H. Frank Morrison, Hong Zhang, Richard A. Rosthal, David Alumbaugh, Cyrille Levesque
  • Publication number: 20130284910
    Abstract: A process analyses gases emitted during drilling of a borehole using oil based mud. The process comprises (a) using mass spectrometry, analysing the gas recovered during drilling through a hydrocarbon-poor zone at spaced apart locations to provide a mass spectrum for the gas emitted at each of the locations; (b) using mass spectrometry, analysing the gas recovered during drilling through a hydrocarbon-rich zone at one location to provide a mass spectrum for the gas emitted at the location; (c) using spectra from the measurements in (a) to extrapolate and predict a peak in a mass spectrum caused by compounds in the mud at a time when the drilling is proceeding through the hydrocarbon-rich zone; and (d) comparing the spectrum obtained in (b) with the predicted spectrum obtained in (c) to further predict at least one of the quantity and identity of the formation gases emitted from the hydrocarbon-rich zone.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 31, 2013
    Inventor: Christopher John Harlow
  • Patent number: 8569685
    Abstract: A portable analytical system for the rapid on-site analysis of fluids, and a method for using this system at the well-site for the analysis of samples extracted from drilling fluids is described. The portable analytical solution may be deployed at the well-site and used to perform detailed real-time analysis of formation fluids and extracts of rock cuttings. The method described could be used during hydrocarbon exploration and production to determine whether the drill stem has passed through a hydrocarbon-bearing region, or rocks that are capable of functioning as an oil reservoir or that may have been a source rock, or that may have come into contact with oil, or that may contain oil at present.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: October 29, 2013
    Assignee: Microsaic Systems PLC
    Inventor: Alan Finlay
  • Publication number: 20130239673
    Abstract: A system and method collects at least one measurement within a borehole formed in a formation. The system and method provides a drill collar made of a non-conductive or substantially non-conductive composite material positioned within the borehole. A downhole component is capable of collecting at least one measurement and is embedded within the composite material of the drill collar. The at least one measurement collectable by the downhole component is related to the borehole or the formation about the borehole.
    Type: Application
    Filed: June 24, 2011
    Publication date: September 19, 2013
    Inventors: Fernando Garcia-Osuna, Jan Morley, Luis E. Depavia, Brian E. Boling, Reza Taherian, David Oliver, Christopher S. Del Campo
  • Publication number: 20130211724
    Abstract: The present disclosure is intended to overcome the problem of hydrogen contamination of the density signal. The approach is to compute the neutron capture portion of the total gamma ray counts and subtract it from the total counts resulting in a pure inelastic gamma ray measurement.
    Type: Application
    Filed: June 27, 2011
    Publication date: August 15, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: John B. Fitzgerald, Kenneth E. Stephenson
  • Patent number: 8502135
    Abstract: A method for estimating a parameter of interest of an earth formation having a fluid contained in pores of the earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the earth formation with neutrons from a neutron source disposed at the carrier; measuring radiation emitted from the earth formation resulting from the irradiating using at least one detector; calculating or determining a mathematical parameter from radiation measured by the at least one detector; predicting values of the mathematical parameter over a range of values of an earth formation property; and comparing the mathematical parameter to the predicted values to estimate the parameter of interest.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: August 6, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: David M. Chace, Rafay Z. Ansari, Feyzi Inanc, W. Allen Gilchrist, Jr., Elton Frost, Jr.
  • Patent number: 8487238
    Abstract: A method for estimating a chemical composition of a material in a borehole penetrating the earth, the method includes: placing an analysis unit into the borehole; placing a sample of the material onto an enhanced surface of the analysis unit, the enhanced surface having a feature configured to increase an electric susceptibility of the sample at an interface between the sample and the enhanced surface; illuminating the sample at the interface with a first light beam and a second light beam; measuring sum frequency light generated from the illuminating; and analyzing the sum frequency light to estimate the chemical composition of the material.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: July 16, 2013
    Assignee: Baker Hughes Incorporated
    Inventor: Sebastian Csutak
  • Patent number: 8481920
    Abstract: In one aspect, the present disclosure provides an apparatus for determining formation density. One embodiment of the apparatus includes a bottomhole assembly having a drill bit attached to end thereof for drilling through a formation, a first sensor in the drill bit configured to provide first signals for determining a first density of the formation proximate to the drill, a second sensor distal from the first sensor configured to provide signals for determining density of a second density of the formation, and a processor configured to determine the formation density from the first density and the second density.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: July 9, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Feyzi Inanc, W. Allen Gilchrist, Eric Sullivan, Tu Tien Trinh, Yi Liu
  • Publication number: 20130161501
    Abstract: Systems and methods are provided for determining a property, e.g., density, of a geological formation based on Einstein's theory of gravitation. A gravitational potential difference is determined between two positions of the geological formation by measuring a frequency shift of a radiation travelling from a source to an absorber of a differential gravimeter. The gravitational potential difference determined can be converted to a density of the geological formation, e.g., based on a concentric spherical shell model. The systems can be a part of a downhole tool.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 27, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventor: SCHLUMBERGER TECHNOLOGY CORPORATION
  • Patent number: 8445841
    Abstract: A first waveguide has a top face positioned in an oil well borehole for wetting by returning drilling mud from a drill bit as drilling progresses. A second waveguide is positioned in the borehole for wetting by new drilling mud being pumped to the drill bit. MIR light rays are fed from an MIR light source into the first and second waveguides for causing evanescent waves to be generated by each waveguide for reacting with the molecules of the associated drilling mud, respectfully, whereby a modulated optical signal representative of spectra of components and particles in the associated drilling mud, respectively, are emitted from each waveguide. The modulated optical signals are converted to electrical signals, subtracted from one another to remove common mode signals, and passed into a processor programmed for extracting the spectra hydrocarbon components contained in the returning drilling mud as the result of the drilling activity.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 21, 2013
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: John S. Szobota, James M. Brown, Clifford C. Walters, Mark M. Disko, Boris Mizaikoff
  • Patent number: 8436294
    Abstract: A method for performing a measurement of a property downhole includes: using an instrument including an irradiator including a pulsed neutron generator, a moderator and a material including a high cross section for capturing thermal neutrons downhole, generating inelastic gamma photons from neutron interactions in the moderator and generating capture gamma photons from neutron interactions in the material; irradiating sub-surface materials proximate to the instrument with the inelastic gamma photons and the capture gamma photons; detecting radiation scattered by the sub-surface materials; and estimating the property according to the detected radiation. A system is also disclosed.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: May 7, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Feyzi Inanc, W. Allen Gilchrist, Jr.
  • Publication number: 20130105678
    Abstract: A neutron logging tool has multiple detectors spaced about the circumference of the tool. The detectors are shielded from each other such that each detector detects gamma rays from the area of the borehole and formation to which it is closest. The log readings from each detector can be associated with the orientation of that detector. The orientation-specific log readings can then be aggregated to form an azimuthal log which can be used to analyze pre-fractured and/or post-fractured formations.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 2, 2013
    Applicant: WEATHERFORD/LAMB, INC.
    Inventor: Weatherford/Lamb, Inc.