Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 5 - Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity
Patents for G01V 5 - Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity (5,830)
03/1983
03/29/1983US4378464 Cable for prospecting
03/17/1983WO1983000972A1 Image analysis system
02/1983
02/23/1983EP0072418A1 Computer-based system for acquisition of nuclear well log data
02/16/1983EP0072304A1 Natural gamma ray spectrum analysis and filtering technique
02/09/1983EP0070943A1 Natural gamma ray spectrum analysis and filtering technique
01/1983
01/18/1983CA1139894A1 Epithermal neutron decay logging
01/12/1983EP0069679A2 Method and apparatus for analysing liquids in wells by way of photon irradiation
01/11/1983USRE31122 Method for ascertaining optimum location for well stimulation and/or perforation
01/11/1983CA1139456A1 Pulsed radiation decay logging
12/1982
12/28/1982US4366382 X-Ray line scan system for use in baggage inspection
12/28/1982CA1138574A1 Water injection profiling
12/28/1982CA1138573A1 Method and apparatus for measuring thermal neutron decay characteristics
12/22/1982EP0067514A1 Method and apparatus for X-ray fluorescence spectroscopy
12/21/1982CA1138129A1 Borehole logging tool cryostat
12/21/1982CA1138128A1 Borehole logging tool cryostat
12/21/1982CA1138127A1 Borehole logging tool cryostat
12/21/1982CA1138126A1 Spectrolog microprocessor stripper
12/14/1982CA1137557A1 Mineral exploration
12/01/1982EP0065557A1 Installation for measuring the profile of radioactive radiation and means for levelling the radiation intensity.
11/1982
11/02/1982US4357535 Apparatus for inspecting hand-held articles and persons carrying same
11/02/1982CA1134955A1 Method for in situ determination cation exchange capacities of subsurface formations
10/1982
10/26/1982CA1134517A1 Method and apparatus for measuring thermal neutron decay characteristics
10/12/1982US4353248 Well logging to determine the nature and extent of mud filtrate penetration
10/07/1982EP0052122A4 Image analysis system.
09/1982
09/28/1982CA1132725A1 Well logging neutron generator control system
09/28/1982CA1132724A1 Method and apparatus for neutron induced gamma ray logging for direct porosity identification
09/21/1982US4350888 Method and system for determining thermal neutron lifetime of earth formations
09/21/1982US4350887 Method of assaying uranium with prompt fission and thermal neutron borehole logging adjusted by borehole physical characteristics
09/14/1982US4349739 Micro-calcification detection
09/14/1982US4349737 Determination of movable oil saturations
09/14/1982US4349736 Measuring natural gamma radiation
09/07/1982US4348671 Dual spectra well logging system
08/1982
08/31/1982US4346590 Gain stabilization for radioactivity well logging apparatus
08/31/1982CA1130930A1 Determination of water saturation in subsurface earth formations adjacent well boreholes
08/03/1982US4342911 Focused nuclear interface survey instrument and method of determining density changes in mining and storage wells
07/1982
07/20/1982CA1128217A1 Gain stabilization for radioactivity well logging apparatus
07/20/1982CA1128215A1 Gamma ray prospecting system
07/13/1982US4339663 Pulsed neutron well logging system and method with synchronization/stabilization pulse verification means
07/06/1982US4338029 Mineral exploration
06/1982
06/29/1982CA1126878A1 Article inspection apparatus with protective chambers having article-loading facility
06/24/1982WO1982002097A1 Installation for measuring the profile of radioactif radiation and means for levelling the radiation intensity
06/24/1982WO1982002040A1 A method and a plant for producing a dry cement composition
06/23/1982EP0054314A1 A method and a plant for producing a dry cement composition
06/22/1982US4336451 Field method for detecting deposits containing uranium and thorium
05/1982
05/26/1982EP0052122A1 Image analysis system
05/05/1982EP0051054A1 A method and apparatus for measuring radon in the ground
04/1982
04/28/1982EP0050605A1 A method and apparatus for measuring radon beneath and above the level of the ground
04/27/1982US4327290 Method and apparatus for nuclear well logging with optimized timing for simultaneous measurement of thermal neutron decay time and gamma ray pulse height spectra
04/20/1982US4326129 Evaluation of the interaction with radiant energy of substances traversed by a bore hole
03/1982
03/31/1982EP0048530A2 X-ray security screening system having magnification
03/02/1982US4317993 Methods and apparatus for constituent analysis of earth formations
02/1982
02/23/1982US4317034 Method and apparatus for measuring neutron characteristics of material surrounding a borehole
02/23/1982US4317033 Gamma ray prospecting system
02/23/1982CA1118912A1 Method for determining residual oil concentration of a formation using thermal neutron decay measurements
02/23/1982CA1118911A1 Method for ascertaining optimum location for well stimulation and/or perforation
02/16/1982US4316086 Method and apparatus for measuring neutron characteristics of material surrounding a borehole
02/16/1982US4315417 Borehole logging tool cryostat
02/10/1982EP0045686A1 Spectroscopic analysis with background compensation
02/09/1982US4315148 Method and apparatus for measuring neutron characteristics of material surrounding a borehole
02/02/1982US4313317 Borehole logging tool cryostat
01/1982
01/26/1982US4312192 Borehole logging tool cryostat
01/19/1982US4311912 Neutron accelerator tube having improved target section
01/12/1982US4310887 Verification and calibration of well logs and reconstruction of logs
01/12/1982US4310765 Neutron accelerator tube having improved ionization section
01/06/1982EP0043313A2 Method and apparatus for measuring gamma radiation in a borehole
12/1981
12/29/1981CA1115427A1 Method and apparatus for measuring underground fluid flow characteristics
12/22/1981USRE30827 Process and device for the determination of the characteristics of the geological formations traversed by a borehole
12/15/1981CA1114523A1 Simultaneous thermal neutron decay time and porosity logging system
12/10/1981WO1981003594A1 Image analysis system
12/08/1981CA1114073A1 Assaying for uranium-bearing ore
11/1981
11/24/1981US4302669 Neutron thermalization time logging
11/10/1981US4300043 Stabilized radioactive logging method and apparatus
11/04/1981EP0039108A1 Apparatus for inspecting hand-held articles and persons carrying same
10/1981
10/27/1981US4297580 X-ray optical system for article inspection, with components disposed on parallel axes
10/27/1981US4297575 Simultaneous gamma ray measurement of formation bulk density and casing thickness
10/27/1981US4297574 For use in exploring for uranium
09/1981
09/29/1981US4292518 Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
09/08/1981US4288696 Well logging neutron generator control system
09/02/1981EP0034800A1 Prospecting cable
09/01/1981US4287415 By irradiation with high energy neutrons
08/1981
08/25/1981US4286150 Neutron-neutron logging
08/18/1981US4284886 Random pulsing of neutron source for inelastic neutron scattering gamma ray spectroscopy
08/11/1981US4283624 Epithermal neutron decay logging
08/04/1981US4282440 Neutron accelerator tube having improved ionization section
08/04/1981US4281712 Minimizing clay and shale damage in a log-inject-log procedure
07/1981
07/29/1981EP0032527A1 Method and apparatus for nuclear well logging
07/28/1981CA1106079A1 Method of measuring horizontal fluid flow in cased off subsurface formations with manganese compensation
07/21/1981US4280048 For detecting uranium in ore
06/1981
06/30/1981CA1104270A1 Thermoluminescent dosimeter system
06/30/1981CA1104269A1 Neutron activation probe
06/30/1981CA1104268A1 Neutron activation probe
06/23/1981CA1103814A1 Earth formation porosity log using measurement of fast neutron energy spectrum
06/02/1981US4271356 Method and apparatus for natural gamma ray spectrum analysis using microprocessor stripper
05/1981
05/19/1981US4268749 Method for directly monitoring the output of a neutron source in a borehole logging system
05/19/1981US4268748 Field method for detecting deposits containing uranium or thorium
05/12/1981US4267447 Methods and apparatus for measuring thermal neutron decay characteristics of earth formations
05/12/1981US4267446 Dual scintillation detector for determining grade of uranium ore
05/12/1981US4267445 Uranium prospecting method
05/05/1981US4266126 Pulsed radiation decay logging
04/1981
04/28/1981US4264823 Well logging digital neutron generator control system
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