Inventor · disambiguated record

Weijun Guo

Also filed as: GUO WEIJUN

82 granted patents·12 pending applications·140 citations·filing 2008–2025

98Inventor score

Technology areasG01V E21B G01T H05H G21G

Files withHALLIBURTON ENERGY SERVICES INC83 GUO WEIJUN3 HALLIBURTON ENERGY SERV INC2 NUCTECH CO LTD2 CHEN DINGDING1

Top patents by PatentIndex Score

94 records

0195US11635543B2Borehole density measurement using pulsed neutron toolHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Apr 25, 2023·5 cites·19 claims
0293US11624855B2Holdup algorithm using assisted-physics neural networksHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Apr 11, 2023·3 cites·20 claims
0393US10677040B2Material evaluation using nuclear logging toolHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jun 9, 2020·7 cites·20 claims
0491US11681070B2Three-component holdup measurement using pulsed neutron toolHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Jun 20, 2023·2 cites·20 claims
0590US10502861B2Long-lifetime, high-yield, fast neutrons sourceHALLIBURTON ENERGY SERVICES INC·Filed 2019·Granted Dec 10, 2019·6 cites·20 claims
0689US11204439B2Porosity determination using optimization of inelastic and capture count rates in downhole loggingHALLIBURTON ENERGY SERVICES INC·Filed 2020·Granted Dec 21, 2021·2 cites·17 claims
0786US10386537B2Gamma-ray spectrometer calibration systems and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Aug 20, 2019·3 cites·14 claims
0886US8692185B2Method and system of determining a parameter associated with a formation corrected for neutrons producedGUO WEIJUN·Filed 2010·Granted Apr 8, 2014·11 cites·24 claims
0985US12038551B2Gamma spectral analysisHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted Jul 16, 2024·1 cites·20 claims
1085US9575206B2Downhole evaluation with neutron activation measurementHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Feb 21, 2017·6 cites·35 claims
1184US10209393B2Method to correct and pulsed neutron fan based interpretation for shale effectsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Feb 19, 2019·4 cites·18 claims
1284US8996315B2Method and system of determining a value indicative of gas saturation of a formationGUO WEIJUN·Filed 2012·Granted Mar 31, 2015·5 cites·23 claims
1382US8881808B2Method of determining a value indicative of fracture qualityHALLIBURTON ENERGY SERV INC·Filed 2012·Granted Nov 11, 2014·7 cites·27 claims
1481US10061054B2Downhole annulus evaluation apparatus, systems, and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Aug 28, 2018·2 cites·22 claims
1580US10884159B2Logging with joint ultrasound and X-ray technologiesHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Jan 5, 2021·2 cites·14 claims
1680US10209395B2Formation independent cement evaluation with active gamma ray detectionHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 19, 2019·2 cites·19 claims
1780US10067261B2Downhole photon radiation detection using scintillating fibersHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Sep 4, 2018·3 cites·23 claims
1880US8346481B2Method and system of determining a value indicative of gas saturation of a formationHALLIBURTON ENERGY SERV INC·Filed 2008·Granted Jan 1, 2013·15 cites·25 claims
1979US12510686B2Time-gated energy spectra for removal of borehole capture backgroundHALLIBURTON ENERGY SERVICES INC·Filed 2024·Granted Dec 30, 2025·0 cites·20 claims
2079US12474500B2Pulsed neutron logging mineralogy using oxide standardsHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Nov 18, 2025·0 cites·18 claims
2178US12404110B2Conveying device and inspection systemNUCTECH CO LTD·Filed 2021·Granted Sep 2, 2025·1 cites·17 claims
2278US10920568B2Evaluating cement integrity in a wellbore with multiple casing stringsHALLIBURTON ENERGY SERVICES INC·Filed 2017·Granted Feb 16, 2021·1 cites·23 claims
2378US2025365845A1Hot cathode for an ion source of a neutron generatorHALLIBURTON ENERGY SERVICES INC·Filed 2025·Application pending·0 cites
2475US10288763B2Long-lifetime, high-yield, fast neutrons sourceHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 14, 2019·2 cites·18 claims
2575US9759834B2Method and apparatus for downhole photon imagingHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Sep 12, 2017·3 cites·18 claims
2675US9690006B2Downhole logging system with azimuthal and radial sensitivityHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Jun 27, 2017·3 cites·17 claims
2773US10895661B2Determination of near wellbore properties using natural gamma raysHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Jan 19, 2021·2 cites·20 claims
2873US10209378B2Photopeak location systems and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Feb 19, 2019·2 cites·20 claims
2972US12504555B2Scandium target for a neutron generator for wellbore loggingHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted Dec 23, 2025·0 cites·20 claims
3072US10605954B2Simultaneous evaluation of the volume and the position of voids in downhole cementHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Mar 31, 2020·2 cites·20 claims
3172US10459112B2Determining a characteristic of a material surrounding a wellbore based on count rates of scattered photonsHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Oct 29, 2019·1 cites·19 claims
3272US10267947B2Signal stabilization and calibration for neutron detectionHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Apr 23, 2019·4 cites·20 claims
3372US10042082B2Gamma ray measurement apparatus, systems, and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2014·Granted Aug 7, 2018·3 cites·20 claims
3471US12408258B2Hot cathode for an ion source of a neutron generatorHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Sep 2, 2025·0 cites·18 claims
3571US10634811B2Downhole neutron generators and methods to generate neutrons in a downhole environmentHALLIBURTON ENERGY SERVICES INC·Filed 2016·Granted Apr 28, 2020·1 cites·20 claims
3671US2023380046A1Ion source for neutron generator usable in wellboreHALLIBURTON ENERGY SERVICES INC·Filed 2022·Application pending·0 cites
3770US10288749B2Photon collimation apparatus, methods, and systemsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 14, 2019·1 cites·20 claims
3870US10182491B2Deuterium-deuterium neutron generatorsHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jan 15, 2019·3 cites·20 claims
3970US9964665B2Gamma-ray spectrometer calibration systems and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted May 8, 2018·1 cites·20 claims
4070US2025176091A1Ion source for neutron generator usable in wellboreHALLIBURTON ENERGY SERVICES INC·Filed 2025·Application pending·0 cites
4169US9389335B2Pulsed neutron tool for downhole oil typingHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Jul 12, 2016·2 cites·23 claims
4268US12099163B1Intrinsic carbon oxygen for formation saturation and borehole holdupHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Sep 24, 2024·0 cites·14 claims
4368US10386533B2Downhole tool apparatus, system, and methodsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Aug 20, 2019·2 cites·19 claims
4466US12396085B2Optimization of a target of a downhole neutron generatorHALLIBURTON ENERGY SERVICES INC·Filed 2023·Granted Aug 19, 2025·0 cites·20 claims
4566US12135402B2Algorithm-free, data-centric multivariate inversion for pulsed neutron loggingHALLIBURTON ENERGY SERVICES INC·Filed 2022·Granted Nov 5, 2024·0 cites·18 claims
4666US11994647B2Compensated formation saturation using assisted physics and neural networksHALLIBURTON ENERGY SERVICES INC·Filed 2021·Granted May 28, 2024·0 cites·20 claims
4766US10495524B2Apparatus and method for monitoring production wellsHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Dec 3, 2019·1 cites·14 claims
4865US10438713B2High output accelerator neutron sourceHALLIBURTON ENERGY SERVICES INC·Filed 2015·Granted Oct 8, 2019·1 cites·7 claims
4963US12497247B2System and method for positioning suspected articleNUCTECH CO LTD·Filed 2023·Granted Dec 16, 2025·0 cites·20 claims
5063US10408968B2Field emission ion source neutron generatorHALLIBURTON ENERGY SERVICES INC·Filed 2013·Granted Sep 10, 2019·2 cites·21 claims

Showing the top 50 of 94 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →