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Shampine Rod, Groves Joel L, Durkowski Anthony, Vallee Etienne, Wraight Peter: Apparatus and method for well services fluid evaluation using x-rays. Schlumberger Canada, Services Petroliers Schlumberger, Schlumberger Holdings, Schlumberger Technology, Prad Research And Development, Shampine Rod, Groves Joel L, Durkowski Anthony, Vallee Etienne, Wraight Peter, CATE David, March 20, 2008: WO/2008/032265 (1 worldwide citation)

A method and apparatus for determining the density and phase fractions of well services fluids is shown including an x-ray generator, a sample cell, and a radiation detector. Radiation is passed through the sample cell and fluid and the attenuated radiation signal is used to evaluate the fluid. In o ...


2
Simonetti John J, Ziegler Wolfgang, Groves Joel L, Liberman Arthur D, Stoller Christian: Method and apparatus for radiation detection in a high temperature environment. Schlumberger Technology, Services Petroliers Schlumberger, Prad Research And Development, Schlumberger Canada, Schlumberger Holdings, Simonetti John J, Ziegler Wolfgang, Groves Joel L, Liberman Arthur D, Stoller Christian, SINGH Karan, June 28, 2007: WO/2007/072140

A radiation detector operating at high temperatures is shown comprising a scintillating material for producing light when excited by incident radiation, a photocathode, and an electron multiplier. The photocathode is deposited directly onto the surface of the scintillating material that is oriented ...


3
Groves Joel L: Tritium-tritium neutron generator logging tool. Schlumberger Canada, Schumberger Technology, Prad Research And Development, Services Petroliers Schlumberger, Schlumberger Holdings, Groves Joel L, FONSECA Darla, June 11, 2009: WO/2009/073278

A neutron generator system is provided that uses substantially only the T-T fusion reaction to generate neutrons for a neutron borehole tool.


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Groves Joel L, Pfutzner Harold: Low power neutron generators. Schlumberger Canada, Schlumberger Technology, Prad Research And Development, Services Petroliers Schlumberger, Schlumberger Holdings, Groves Joel L, Pfutzner Harold, FONSECA Darla, June 18, 2009: WO/2009/076291

A neutron generator and method of constructing the same. The generator includes a grid configured to produce an ionizable gas when heated by electrons impinging thereon. A cathode emits electrons to heat the grid and to collide with produced ionizable gas atoms to generate ions. Neutrons are generat ...


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Groves Joel L: Neutron generator. Schlumberger Canada, Schlumberger Technology, Prad Research And Development, Services Petroliers Schlumberger, Schlumberger Holdings, Groves Joel L, FONSECA Darla, June 4, 2009: WO/2009/070535

A neutron generator includes an ion source disposed in a pressurized environment containing an ionizable gas. The ion source includes a substrate with a bundle of carbon nanotubes extending therefrom. The ends of the nanotubes are spaced from a grid. Ion source voltage supply circuitry supplies a po ...


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Groves Joel L, Vallee Etienne, Wraight Peter: Apparatus and method for fluid phase fraction determination using x-rays optimized for wet gas. Schlumberger Canada, Schlumberger Technology, Prad Research And Development, Services Petroliers Schlumberger, Schlumberger Holdings, Groves Joel L, Vallee Etienne, Wraight Peter, sHOFMAN Dave, June 25, 2009: WO/2009/079311

An apparatus for determining fractional amounts of each phase of a multiple phase fluid includes an x-ray generator, a sample chamber which is configured to admit therein a sample of fluid for analysis. The chamber is disposed in a radiation path output from the generator. A filter is disposed in th ...


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GROVES Joel L, LIGNEUL Patrice, ADOLPH Bob A, WANJAU Paul, QUINLAN Tim, PURCELL Jack: DÉTECTEUR DE RAYONNEMENT SEGMENTÉ, APPAREIL ET PROCÉDÉ DUTILISATION ASSOCIÉS, SEGMENTED RADIATION DETECTOR AND APPARATUS AND METHOD FOR USING SAME. SCHLUMBERGER CANADA, SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER HOLDINGS, Schlumberger Technology, PRAD RESEARCH AND DEVELOPMENT, GROVES Joel L, LIGNEUL Patrice, ADOLPH Bob A, WANJAU Paul, QUINLAN Tim, PURCELL Jack, FONSECA Darla, May 3, 2012: WO/2012/058564

Systems, methods, and devices involving segmented radiation detectors are provided. For example, a segmented radiation detector may include a segmented scintillator and an optical-to-electrical converter. The segmented scintillator may have several segments that convert radiation to light, at least ...


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GROVES Joel L, STOLLER Christian: SYSTÈME DANALYSE DE CAROTTE PAR RAYONS X EN FOND DE TROU ET IN SITU, IN-SITU DOWNHOLE X-RAY CORE ANALYSIS SYSTEM. SCHLUMBERGER CANADA, SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER HOLDINGS, Schlumberger Technology, PRAD RESEARCH AND DEVELOPMENT, GROVES Joel L, STOLLER Christian, HOFMAN David, May 3, 2012: WO/2012/058579

The disclosure includes an arrangement of X-ray generator(s) (210), X-ray detector(s) (214), and/or X-ray calibration device(s) for performing X-ray measurements, such as attenuation and/or photo electric factor measurements, on formation core samples (204) in a downhole environment under conditions ...


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REIJONEN Jani, GROVES Joel L: [fr] CONFIGURATION DÉLECTRODE INTERMÉDIAIRE FLOTTTANTE POUR UN GÉNÉRATEUR DE RAYONNEMENT NUCLÉAIRE DE FOND, [en] FLOATING INTERMEDIATE ELECTRODE CONFIGURATION FOR DOWNHOLE NUCLEAR RADIATION GENERATOR. REIJONEN Jani, GROVES Joel L, SCHLUMBERGER CANADA, SERVICES PETROLIERS SCHLUMBERGER, SCHLUMBERGER HOLDINGS, Schlumberger Technology, PRAD RESEARCH AND DEVELOPMENT, BERMAN Jeremy, March 21, 2013: WO/2013/039867

[en] Systems, methods, and devices with improved electrode configuration for downhole nuclear radiation generators are provided. For example, one embodiment of a nuclear radiation generator capable of downhole operation may include a charged particle source, a target material, and an acceleration co ...