| Patents for G01V 5 - Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity (5,830) |
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| 01/26/1988 | US4722096 Apparatus for transradiating objects on a conveyor path |
| 01/26/1988 | US4721853 Thermal decay time logging method and apparatus |
| 01/20/1988 | EP0253060A1 X-ray scanning system |
| 01/05/1988 | US4717825 Method and apparatus for anomalous radioactive deposition compensation in spectral gamma ray well logging |
| 12/23/1987 | CN86104175A Device for measuring flow speed and direction of underground water in ionization chamber isolope-tracing single well |
| 12/17/1987 | WO1987007733A1 A well logging tool with an accelerator neutron source |
| 12/16/1987 | CN86104825A Well lagging tool with accelerator neutron source |
| 12/12/1987 | CN86210206U Quick disassemble mechanism for strong radioactive source of well testing instrument |
| 12/08/1987 | US4712007 Measuring earth formation characteristics |
| 12/02/1987 | EP0247491A1 X-ray scanning system |
| 11/24/1987 | US4707887 Apparatus for detecting foreign bodies, such as pieces of metal or the like, in textile fiber bales |
| 11/10/1987 | US4706267 Defect detector for cord reinforced tire fabric |
| 11/10/1987 | US4705944 Formation density logging while drilling |
| 10/13/1987 | US4700300 Indicating barehole rugosity as a function of the difference between shallow and deep log indices |
| 10/13/1987 | US4700070 Radon gas detection apparatus and method |
| 10/07/1987 | EP0240372A1 Thermal decay time logging method and apparatus |
| 10/07/1987 | EP0239689A2 Aperture measuring system for cord reinforced tyre fabric |
| 10/06/1987 | US4698501 System for simultaneous gamma-gamma formation density logging while drilling |
| 10/06/1987 | US4698500 Detecting gamma radiation as function of depth |
| 10/06/1987 | US4698499 Quantitative evaluation of uranium ore zones |
| 10/06/1987 | US4697650 Method for estimating formation characteristics of the exposed bottomhole formation |
| 09/29/1987 | US4697078 Method for quality control of counting logs |
| 09/16/1987 | EP0236613A1 Detection of water flow outside a well casing |
| 09/15/1987 | US4694166 Logging device having bimetallic insulating flask |
| 09/15/1987 | CA1226974A1 Directional epithermal neutron detector |
| 09/15/1987 | CA1226973A1 Neutron generator ion source pulser |
| 09/15/1987 | CA1226972A1 Nuclear detector system with reduced dead-time processor circuit |
| 09/08/1987 | US4692617 Method and system for neutron lifetime logging |
| 09/02/1987 | EP0234731A1 Method of logging a well using a non-radioactive material irradiated into an isotope |
| 09/02/1987 | EP0234080A2 Defect detector for cord reinforced tyre fabric |
| 09/01/1987 | US4691102 For use in logging downhill earth formations |
| 09/01/1987 | CA1226377A1 Borehole compensated oxygen activation nuclear well logging |
| 08/26/1987 | CN86108715A Methods and apparatus for borehole gamma-ray spectroscopy and like measurements |
| 08/18/1987 | CA1225754A1 Epithermal neutron porosity measurement |
| 08/18/1987 | CA1225753A1 Gamma ray measurement of earth formation properties using a position sensitive scintillation detector |
| 08/18/1987 | CA1225752A1 Gamma ray measurement of earth formation properties using a position sensitive scintillation detector |
| 08/12/1987 | EP0231693A1 Methods and apparatus for borehole gamma-ray spectroscopy and like measurements |
| 08/05/1987 | EP0230443A1 X-ray detection apparatus |
| 08/04/1987 | CA1225165A1 Epithermal neutron detector and logging method using it |
| 07/30/1987 | WO1987004528A1 Minerals and petroleum exploration using thermoluminescence |
| 07/07/1987 | CA1223977A1 Multi-function natural gamma ray logging system |
| 07/01/1987 | EP0227497A1 Method for detecting explosives |
| 07/01/1987 | EP0227216A1 Coal analysis system and gamma-ray detector |
| 06/30/1987 | CA1223675A1 Probe for insertion into drill holes for the purpose of locating mineral deposits |
| 06/03/1987 | EP0224351A1 A gamma-ray logging system |
| 06/02/1987 | CA1222577A1 Borehole gamma ray logging detector and system |
| 05/26/1987 | US4668863 Neutron logging time spectral data acquisition system and method |
| 05/13/1987 | EP0221323A1 Apparatus for luggage inspection |
| 05/12/1987 | CA1221771A1 Process and device for the acquisition of data concerning the organic or mineral materials content of geological formations |
| 05/05/1987 | CA1221476A1 Probe for insertion into drill holes for the purpose of locating mineral deposits |
| 04/29/1987 | EP0220047A2 Borehole logging equipment |
| 04/28/1987 | US4661701 Methods and apparatus for borehole-corrected spectral analysis of earth formations |
| 04/28/1987 | US4661700 Well logging sonde with shielded collimated window |
| 04/22/1987 | CN86106539A Improvements in or relating to logging equipment |
| 04/21/1987 | US4658601 Cryogenic cell |
| 04/21/1987 | CA1220878A1 Method and apparatus for gamma ray well logging |
| 04/15/1987 | EP0218240A2 Nitrogen detection |
| 04/08/1987 | CN85107160A Method and device for measuring velocity and direction of underflow using tracing isotope for single well by heat released light |
| 04/07/1987 | US4656354 Method for induced gamma ray logging |
| 03/10/1987 | CA1219083A1 Method and apparatus for gamma ray well logging |
| 02/25/1987 | CN86106827A Quantitative determination by elemental logging of subsurface formation properties |
| 02/24/1987 | US4645927 Clay type and volume evaluation |
| 02/24/1987 | US4645926 Method for induced gamma ray logging |
| 02/18/1987 | CN86201156U X-ray scanner |
| 02/10/1987 | US4642460 Technique for locating injected gas in oil bearing formations behind casing |
| 02/10/1987 | CA1217881A Gain stabilized natural gamma ray detection of casing thickness in a borehole |
| 02/03/1987 | US4641028 Neutron logging tool |
| 01/27/1987 | US4639941 Radiography |
| 01/27/1987 | US4639596 Petroleum reservoir flooding method |
| 01/20/1987 | US4638164 High resolution scintillation crystal |
| 01/20/1987 | US4638161 Epithermal neutron porosity measurement |
| 01/20/1987 | US4638159 Graded shaped spatial resolution nuclear detectors |
| 01/20/1987 | US4638158 Gamma ray measurement of earth formation properties using a position sensitive scintillation detector |
| 01/14/1987 | CN85105548A Methods and apparatus for measuring thermal neutron decay characteristics of earth formations |
| 01/13/1987 | CA1216681A1 Formation density logging while drilling |
| 01/06/1987 | US4634863 Nuclear detector system with reduced dead-time processor circuit |
| 01/06/1987 | CA1216377A1 System and method for subsurface neutron logging |
| 12/31/1986 | WO1986007638A1 X-ray detection apparatus |
| 12/30/1986 | EP0206867A1 Well logging sonde |
| 12/30/1986 | EP0206593A1 Borehole compensation method and apparatus |
| 12/23/1986 | US4631405 Method and apparatus for dual-spaced fast/epithermal neutron porosity measurements |
| 12/17/1986 | EP0205241A1 Tool for neutron lifetime logging |
| 12/16/1986 | US4629888 Well logging tool for hot well bores |
| 12/09/1986 | US4628202 Method and apparatus for gamma ray well logging |
| 12/03/1986 | EP0203690A1 Method and tool for neutron lifetime logging |
| 12/03/1986 | CN85107859A X-射线扫描仪 X- ray scanners |
| 11/25/1986 | US4625111 Method and apparatus for pulsed neutron capture measurement of borehole conditions and formation hydrogen index |
| 11/25/1986 | US4625110 Epithermal neutron porosity measurement |
| 10/22/1986 | EP0198615A1 Gamma ray borehole logging |
| 10/22/1986 | EP0198276A1 X-ray scanning system |
| 10/21/1986 | US4618765 Gamma ray measurement of earth formation properties using a position sensitive scintillation detector |
| 10/21/1986 | US4617825 Well logging analysis methods for use in complex lithology reservoirs |
| 10/14/1986 | CA1212782A1 Method for identifying complex lithologies in a subsurface formation |
| 10/14/1986 | CA1212604A1 Method for monitoring potassium chloride concentration in drilling fluid |
| 10/01/1986 | CN85107860A X-rays scanner |
| 09/17/1986 | EP0194933A1 Method and apparatus for airborne mapping of a zone emitting gamma rays |
| 09/17/1986 | EP0194477A1 X-ray scanning system |
| 09/16/1986 | US4612439 Method and apparatus for natural gamma ray well logging |
| 09/10/1986 | EP0194027A1 Pulsed neutron measurements in boreholes |
| 09/10/1986 | EP0193786A1 Device for irradiating containers |