Patents by Inventor Robert L. Kleinberg

Robert L. Kleinberg has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6612171
    Abstract: A gravity measuring apparatus is provided comprising a gravitational force detector including a test mass and which produces measurements related to gravitational force exerted on the test mass, characterized in that the gravitational force detector is adapted for use downhole and includes a compensator to compensate for errors in measurements made whilst downhole. The compensator may comprise a guide rail along which the gravitational force detector is moveable over a calibrated distance. Where the test mass is biased toward an equilibrium position about which measurements are made.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: September 2, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Kenneth E. Stephenson, Robert L. Kleinberg, Douglas D. Griffin
  • Patent number: 6578405
    Abstract: A method of detecting a marine gas seep that includes: deploying a local probe on or near the seafloor; producing bubbles in water near or within the local probe; detecting the bubbles; producing data indicating the relative concentration of dissolved gas in the water; and associating elevated dissolved gas concentrations with the presence of a nearby marine gas seep. Another aspect of the invention involves an apparatus configured to carry out the inventive method. Preferred embodiments of the invention utilize an ultrasonic transducer to both produce bubbles and detect them.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: June 17, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert L. Kleinberg, Neil W. Bostrom, Douglas D. Griffin, Peter G. Brewer
  • Patent number: 6563314
    Abstract: A method for determining the nuclear magnetic resonance longitudinal magnetization decay of formations surrounding an earth borehole that involves: providing a logging device moveable through the borehole; applying a static magnetic field in the formations to align spins in the formations in the direction of the static magnetic field; producing a tipping pulse for tipping the direction of the spins with respect to the static magnetic field direction; and detecting the time varying magnitude of the spin magnetization as the magnetization returns toward the static magnetic field direction; the longitudinal magnetization decay being determinable from the detected time varying magnitude of the spin magnetization. Related methods and apparatus for implementing these methods are also described.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: May 13, 2003
    Assignee: Schlumberger Technology Corporation
    Inventor: Robert L. Kleinberg
  • Publication number: 20030056568
    Abstract: A method of detecting a marine gas seep that includes: deploying a local probe on or near the seafloor; producing bubbles in water near or within the local probe; detecting the bubbles; producing data indicating the relative concentration of dissolved gas in the water; and associating elevated dissolved gas concentrations with the presence of a nearby marine gas seep. Another aspect of the invention involves an apparatus configured to carry out the inventive method. Preferred embodiments of the invention utilize an ultrasonic transducer to both produce bubbles and detect them.
    Type: Application
    Filed: September 25, 2001
    Publication date: March 27, 2003
    Inventors: Robert L. Kleinberg, Neil W. Bostrom, Douglas D. Griffin, Peter G. Brewer
  • Publication number: 20030006768
    Abstract: Nuclear magnetic resonance techniques are used in a fluid sampling tool that extracts a fluid from subsurface earth formations into a flow channel within the tool. The magnetic resonance techniques involve applying a static magnetic field and an oscillating magnetic field to the fluid in the flow channel, and magnetic resonance signals are detected from the fluid and analyzed to extract information about the fluid such as composition, viscosity, etc.
    Type: Application
    Filed: October 30, 2001
    Publication date: January 9, 2003
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Robert L. Kleinberg, David P. Madio, Oliver C. Mullins
  • Publication number: 20020194907
    Abstract: The present invention discloses a method and apparatus to detect bubbles in a fluid sample to determine if gases are present, wherein an ultrasonic source is used and its properties monitored. Fluctuations in the ultrasonic source's electrical properties indicate the presence of bubbles/gas. Alternatively, the ultrasonic source may be used to cavitate the sample and induce the nucleation of bubbles. In such a system/method, bubbles may be detected by either (1) monitoring the ultrasonic source properties, (2) monitoring the compressibility of the sample, (3) monitoring the sample properties, including harmonics and subharmonics. The method and apparatus disclosed herein may be used in a borehole such as with a sampling means (including either a flowing sample or a stationary sample) or in a surface lab.
    Type: Application
    Filed: July 26, 2002
    Publication date: December 26, 2002
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Neil Bostrom, Douglas D. Griffin, Robert L. Kleinberg
  • Patent number: 6346813
    Abstract: Magnetic resonance techniques, e.g., nuclear magnetic resonance (NMR) and electron spin resonance (ESR), are used in a fluid sampling tool that extracts a fluid from subsurface earth formations into a flow channel within the tool. The magnetic resonance techniques involve applying a static magnetic field and an oscillating magnetic field to the fluid in the flow channel, and magnetic resonance signals are detected from the fluid and analyzed to extract information about the fluid such as composition, viscosity, etc.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: February 12, 2002
    Assignee: Schlumberger Technology Corporation
    Inventor: Robert L. Kleinberg
  • Patent number: 6232778
    Abstract: The present invention provides methods for determining the bound fluid volume (BFV) of a formation utilizing nuclear magnetic resonance (NMR) techniques in which less than full polarization occurs and in which less than a complete NMR distribution is acquired. The effect of the polarizing static magnetic field is shortened in time by applying a shortened wait time between NMR measurements so that only the bound fluid of the formation is polarized. The shortened wait time is effectuated by early application of the oscillating magnetic field to the formation which, in conjunction with a limited number of refocusing pulses, induces signals in the formation that are measured by the NMR tool. The peak amplitude of these signals corresponds to the BFV. The present invention provides information so that a partial polarization calculation curve in T2 lies almost equally between an empirical tapered cutoff curve and a theoretical tapered cutoff curve.
    Type: Grant
    Filed: June 11, 1998
    Date of Patent: May 15, 2001
    Assignee: Schlumberger Technology Corporation
    Inventors: Peter Speier, Steven F. Crary, Robert L. Kleinberg, Charles Flaum
  • Patent number: 6140817
    Abstract: Technique and apparatus are disclosed for identifying characteristics of hydrocarbons, such as distinguishing light and heavy formation oil, in formations surrounding an earth borehole. The technique and apparatus can also be used for determining residual oil saturation, permeability, and bound water volume. An embodiment of the method of the invention includes the following steps: providing a nuclear magnetic resonance logging device that is moveable through the borehole; providing, from the logging device, a polarizing magnetic field and cycles of a magnetic pulse sequence, and receiving magnetic resonance spin echoes from the formations; processing the received spin echoes to produce a T.sub.2 distribution; computing a magnetic resonance porosity from the T.sub.2 distribution; deriving a measure of total porosity of the formations; and comparing the magnetic resonance porosity with the total porosity.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: October 31, 2000
    Assignee: Schlumberger Technology Corporation
    Inventors: Charles Flaum, Robert L. Kleinberg
  • Patent number: 6128949
    Abstract: An improved method of fluid analysis in the borehole of a well. A fluid sampling tool is fitted with a pumpout module that can be used to draw fluids from the formation, circulate them through the instrument, and then expel this fluid to the borehole. It has been determined that certain measurements would be most valuable to implement down hole, such as the formation fluid bubble point and dew point. Accurate bubble point and dew point measurements are made by forming bubbles or a liquid drop in a measured sample, and detecting same.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: October 10, 2000
    Assignee: Schlumberger Technology Corporation
    Inventor: Robert L. Kleinberg
  • Patent number: 5914598
    Abstract: A permanent magnet of a pulsed nuclear magnetic resonance (NMR) device is positioned within a drill collar for evaluating earth formations. In this way, the torsional and bending strengths of the drill collar are maximized with relatively little sacrifice of the magnetic moment of the permanent magnet. The resulting tool makes NMR measurements while the formation is being drilled. An antenna for producing and detecting an oscillating RF field in the earth formation is either located in a groove in the outer surface of the drill collar, or in an alternative embodiment, the drill collar itself serves as an RF antenna.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: June 22, 1999
    Assignee: Schlumberger Technology Corporation
    Inventors: Abdurrahman Sezginer, Robert L. Kleinberg
  • Patent number: 5796252
    Abstract: A nuclear magnetic resonance (NMR) logging technique reveals the volume of hydrocarbons in an earth formation. The differences in viscosity among gas, oil and water are used to distinguish among these three fluids. During NMR logging, a parameter of a sequence of magnetic field pulses is altered, causing echo signal strengths to vary due to the diffusion of the fluids in the formation. The volume of hydrocarbons in the formation is determined from detected spin echo strengths. The invention applies to wireline NMR logging and NMR logging-while-drilling techniques.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: August 18, 1998
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert L. Kleinberg, Lawrence L. Latour, Abdurrahman Sezginer
  • Patent number: 5680043
    Abstract: An NMR pulse sequence technique for use in the borehole environment is provided which uses CPMG pulses according to?W.sub.i -90-(t.sub.cp -180-t.sub.cp -echo).sub.j !.sub.iwhere j is the index of the CPMG echoes gathered, i is the index of the wait times in the pulse sequence, W.sub.i are the varying wait times before the CPMG pulses, and tcp is the Carr-Purcell spacing. Measurements are made of the signals induced in the formation as a result of the magnetic fields to find the spin-echo relaxation time T1. Using T1, the gas effect on formation parameters may be derived. Also, gas saturation and gas chemical composition can be derived. In addition, the diffusion coefficient of gas under reservoir conditions can be more than ten times larger than that of water, making the T.sub.2 relaxation time of gas more sensitive to static magnetic field gradients. In formations where gas occupies pores larger than about 10 .mu.m, this T.sub.2 effect (effect of diffusion on the measured T.sub.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: October 21, 1997
    Assignee: Schlumberger Technology Corporation
    Inventors: Martin D. Hurlimann, Robert L. Kleinberg
  • Patent number: 5629623
    Abstract: A permanent magnet of a pulsed nuclear magnetic resonance (NMR) device is positioned within a drill collar for evaluating earth formations. In this way, the torsional and bending strengths of the drill collar are maximized with relatively little sacrifice of the magnetic moment of the permanent magnet. The resulting tool makes NMR measurements while the formation is being drilled. An antenna for producing and detecting an oscillating RF field in the earth formation is either located in a groove in the outer surface of the drill collar, or in an alternative embodiment, the drill collar itself serves as an RF antenna.
    Type: Grant
    Filed: November 14, 1994
    Date of Patent: May 13, 1997
    Assignee: Schlumberger Technology Corporation
    Inventors: Abdurrahman Sezginer, Robert L. Kleinberg
  • Patent number: 5557201
    Abstract: The instruments of a pulsed nuclear magnetic resonance (NMR) device are included in a drill collar for evaluating earth formations. The resulting tool makes NMR measurements while the formation is being drilled.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: September 17, 1996
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert L. Kleinberg, Abdurrahman Sezginer
  • Patent number: 5204568
    Abstract: Superconducting bearings inhibit the excitation of modes in a superconducting force measuring instrument such as a superconducting gravimeter, and effecively damp such modes in the event they are excited. Excitation of modes is inhibited by magnetically and/or physically blocking orbital and rotational motions. Modes which are excited are efficiently damped, preferably by inducing eddy currents in lossy metal parts. These dissipative eddy currents remove energy from the motion, causing the motion to decay exponentially with time. A significant advantage of the bearing design is that the magnetic field of the bearing can be isolated from the main levitation system. This ensures that the bearing interferes minimally with the gravity measurement.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: April 20, 1993
    Assignee: GWR Instruments
    Inventors: Robert L. Kleinberg, Douglas D. Griffin, Richard J. Warburton
  • Patent number: 5153514
    Abstract: An apparatus is disclosed for investigating nuclear magnetic resonance properties of earth formations traversed by a borehole, including a logging device adapted for longitudinal movement in the borehole. The device includes a first subsystem for producing a static magnetic field in the formations and a second subsystem for transmitting electromagnetic energy into the formations and for detecting electromagnetic energy from the formations. The second subsystem comprises an antenna assembly which includes an open-ended shell formed of a magnetically permeable material. An open-ended electrically conductive body is disposed within the shell and is spaced therefrom. A medium whose acoustic impedance is substantially different than the acoustic impedance of the shell and the body is disposed between the shell and the body. An electrically conductive probe is disposed in the body, and an electrically insulating magnetically permeable loading material disposed in the body.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: October 6, 1992
    Assignee: Schlumberger Technology Corp.
    Inventors: Douglas D. Griffin, Robert L. Kleinberg, Abdurrahman Sezginer, Masafumi Fukuhara
  • Patent number: 5055787
    Abstract: Borehole NMR logging apparatus and methods, and methods for the interpretation thereof. A logging tool is provided which produces a strong, static and homogeneous magnetic field B.sub.0 in a Volume of an adjacent formation on one side of the tool to measure nuclear magnetic resonance characteristics thereof. In the preferred embodiment, the tool has an RF antenna mounted on the outside of the metal body of the tool, directing focussed oscillating magnetic fields B.sub.1 at said Volume to polarize or tip the magnetic moments of hydrogen nuclei of fluids within rock pores. The same antenna can be used to receive signals of proton precession in the Volume of interest immediately after transmission of the RF polarizing field B.sub.1. Extremely rapid damping of the antenna between the transmitting and receiving modes of operation is accomplished by a Q-switch disclosed herein. The invention provides for the direct measurement of NMR decay having transverse relaxation time T.sub.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: October 8, 1991
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert L. Kleinberg, Douglas D. Griffin, Masafumi Fukuhara, Abdurrahman Sezginer, Weng C. Chew
  • Patent number: 5055788
    Abstract: Borehole NMR logging apparatus and methods, and methods for the interpretation thereof. A logging tool is provided which produces a strong, static and homogeneous magnetic field B.sub.0 in a Volume of an adjacent formation on one side of the tool to measure nuclear magnetic resonance characteristics thereof. In the preferred embodiment, the tool has an RF antenna mounted on the outside of the metal body of the tool, directing focussed oscillating magnetic fields B.sub.1 at said Volume to polarize or tip the Magnetic moments of hydrogen nuclei of fluids within rock pores. The same antenna can be used to receive signals of proton precession in the Volume of interest immediately after transmission of the RF polarizing field B.sub.1. Extremely rapid damping of the antenna between the transmitting and receiving modes of operation is accomplished by a Q-switch disclosed herein. The invention provides for the direct measurement of NMR decay having transverse relaxation time T.sub.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: October 8, 1991
    Assignee: Schlumberger Technology Corporation
    Inventors: Robert L. Kleinberg, Douglas D. Griffin, Masafumi Fukuhara, Abdurrahman Sezginer
  • Patent number: RE38129
    Abstract: An improved method of fluid analysis in the borehole of a well. A fluid sampling tool is fitted with a pumpout module that can be used to draw fluids from the formation, circulate them through the instrument, and then expel this fluid to the borehole. It has been determined that certain measurements would be most valuable to implement down hole, such as the formation fluid bubble point and dew point. Accurate bubble point and dew point measurements are made by forming bubbles or a liquid drop in a measured sample, and detecting same.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: June 3, 2003
    Assignee: Schlumberger Technology Corporation
    Inventor: Robert L. Kleinberg