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)
06/1989
06/27/1989CA1256595A1 Formation density logging using two detectors and sources
06/26/1989EP0291506A4 Minerals and petroleum exploration using thermoluminescence.
06/21/1989EP0321198A1 Radioactive shaped charges and method for well perforating
06/21/1989EP0321197A1 Well logging using radioactive tracers
06/20/1989US4841554 X-ray scanner for inspecting articles moving therethrough
06/20/1989US4841153 Coal analysis
06/13/1989US4839913 Shadowgraph imaging using scatter and fluorescence
06/06/1989CA1255397A1 Optimized determination thermal decay time
05/1989
05/31/1989EP0318343A2 Methods and apparatus for safely handling radioactive sources in measuring-while-drilling tools
05/23/1989US4833320 High-temperature well logging instrument with plastic scintillation element
05/23/1989CA1254676A1 Method and apparatus for pulsed neutron capture measurement of borehole conditions and formation hydrogen index
05/23/1989CA1254675A1 Borehole compensation method and apparatus using variations in relative borehole
05/23/1989CA1254673A1 Gamma ray borehole logging method and apparatus having compensation for borehold attenuation effects
05/23/1989CA1254672A1 Graded shaped spatial resolution nuclear detectors
05/17/1989EP0316100A1 Analysis using neutrons
05/09/1989US4829176 Logging apparatus and method
05/03/1989EP0313716A1 Radiation dose measuring method and apparatus with nuclide discrimination function
05/02/1989CA1253634A1 Method and tool for neutron lifetime logging
04/1989
04/26/1989EP0312851A1 X-ray scanning system
04/25/1989US4825073 Method for determining depth of penetration of radioactive tracers in formation fractures
04/25/1989US4825071 Gamma ray borehole logging method and apparatus having compensation for borehole attenuation effects
04/12/1989EP0311177A2 System for examining a body with a radiance source
04/11/1989US4820919 Method of determining the density of substrata
03/1989
03/28/1989US4817121 Apparatus for checking baggage with x-rays
03/28/1989US4816674 Determining a formation porosity from neutron logging information
03/21/1989US4814611 Apparatus for measuring borehole-compensated densities and lithology-dependent factors using one or more detectors
03/21/1989US4814610 Method for more accurately determining thermal neutron decay time constants
03/21/1989US4814609 Methods and apparatus for safely measuring downhole conditions and formation characteristics while drilling a borehole
03/14/1989CA1251289A1 Collimated thermal neutron porosity tool
03/08/1989CN1003542B X-射线扫描仪 X- ray scanners
03/07/1989US4811373 For measuring bone contact
03/07/1989US4810876 Logging apparatus and method for determining absolute elemental concentrations of subsurface formations
03/07/1989US4810459 Method and apparatus for determining true formation porosity from measurement-while-drilling neutron porosity measurement devices
02/1989
02/28/1989US4808838 Thermal neutron detector system
02/28/1989US4808368 High voltage supply for neutron tubes in well logging applications
02/21/1989CA1250374A1 Method and apparatus for formation logging using position sensitive neutron detectors
02/14/1989CA1250060A1 Method and apparatus for differentiating low porosity limestones from high porosity gas sands
02/14/1989CA1250059A1 Method and apparatus for dual-spaced fast/epithermal neutron porosity measurements
02/14/1989CA1250058A1 Method and apparatus for logging a borehole employing dual radiation detectors
02/14/1989CA1250057A1 Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well
02/08/1989CN1030983A Method of monitoring a hidden coal-rock interface and a transmitter for performing this method
01/1989
01/18/1989EP0299823A2 Determining a formation porosity from neutron logging information
01/17/1989US4799247 X-ray imaging particularly adapted for low Z materials
01/04/1989EP0297249A1 Composite cavity structure for an explosive detection system
01/03/1989US4794792 Method for determining formation characteristics with enhanced vertical resolution
12/1988
12/28/1988EP0296894A2 Method and apparatus for determining the grade of a rare metal in a geological formation
12/28/1988CA1247756A Quantative evaluation of uranium ore zones
12/21/1988EP0295429A2 Explosive detection system
12/15/1988WO1988008143A3 Method and apparatus for evaluating the rare metal content of a natural geological formation
12/13/1988CA1246731A1 Method for estimating formation characteristics of exposed bottomhole formation
11/1988
11/29/1988US4788704 X-ray scanner & detector signal processing system
11/29/1988US4788424 Method and apparatus for determining partitioning of borehole and formation constituents
11/23/1988EP0291506A1 Minerals and petroleum exploration using thermoluminescence
11/22/1988US4786796 Determining the density of a subsurface geological formation
11/15/1988US4784691 Dry cement composition
11/08/1988US4783794 Baggage inspection system
10/1988
10/25/1988CA1243783A1 Well logging tool with an accelerator neutron source
10/20/1988WO1988008143A2 Method and apparatus for evaluating the rare metal content of a natural geological formation
10/19/1988CN87107286A Method and apparatus for detecting counterfeit articles
10/12/1988EP0286393A2 Imaging system
09/1988
09/28/1988EP0283765A1 X-ray scanning system
09/28/1988CN87210797U Fast oxygen measurement equipment on ground
09/21/1988CN88101914A Methods and apparatus for safely meaasuring downhole conditions and formation characteristics while drilling borehole
09/14/1988EP0282402A2 Methods and apparatus for safely measuring downhole conditions and formation characteristics while drilling a borehole
09/06/1988US4769541 Spectrometric gamma diagraphy system for the determination of the geological parameters of a rock
08/1988
08/24/1988EP0279111A1 Methods for utilizing radiation decay curves and for determining thermal neutron decay-time constants
08/23/1988US4766543 Well logging direct memory access system and method
08/23/1988US4765655 Radioisotope marking of art objects in view of their rapid identification
08/16/1988US4764677 Well logging detector
07/1988
07/28/1988DE3701454A1 Fluoroscopy device
07/27/1988EP0275446A1 X-ray radiation detector
07/26/1988US4760252 Well logging tool with an accelerator neutron source
07/20/1988EP0274522A1 Bone densitometer
07/19/1988US4759047 Baggage inspection system
07/19/1988CA1239484A1 Aperture measuring system for cord reinforced tire fabric
07/12/1988US4756866 Nitrogen detection
07/05/1988US4756015 X-ray scanner
07/02/1988WO1988005116A1 Method and pick-up for checking of hidden boundary coal-rock
06/1988
06/22/1988EP0271723A1 X-ray scanning system
06/15/1988EP0271245A2 Method and apparatus for detecting counterfeit articles
06/07/1988US4749859 Nuclear well logging data acquistion system and method
05/1988
05/24/1988US4746801 Method and apparatus for differentiating low porosity limestones from high porosity gas sands
05/17/1988CA1236934A1 Method for quality control of counting logs
05/11/1988EP0267075A2 Method for determining formation characteristics with enhanced vertical resolution
05/10/1988US4743755 Well logging apparatus
05/03/1988US4742340 Method and apparatus for detecting counterfeit articles
05/03/1988CA1236226A1 High resolution scintillation crystal
04/1988
04/20/1988CN86106957A Device for measure of under ground water flow direction and flow rate in a single well by isotope atomic tracing in an electro-dissociation chamber
04/20/1988CN85107800B Apparatus and operation for detecting rn and its daughter in the soil
04/19/1988CA1235530A1 Behind casing water flow
04/12/1988US4737636 Simultaneous neutron lifetime and oxygen activation and fluid sampling methods and apparatus to locate fluid flow in a cased well borehole
04/05/1988US4736401 For examining objects on a conveyor
03/1988
03/30/1988EP0261984A2 Three-dimensional visual screening system
03/24/1988DE3708843A1 X-ray testing device
03/15/1988US4731531 Method of logging a well using a non-radioactive material irradiated into an isotope exhibiting a detectable characteristic
03/10/1988WO1988001788A1 Improved nitrogen detection
03/09/1988EP0259225A2 Logging apparatus and method for determining absolute elemental concentrations of subsurface formations
03/08/1988US4730263 Method and device for measuring gamma radiation
02/1988
02/10/1988CN86208769U Filter for locating goldmine in portable x-ray fluorometer
01/1988
01/28/1988WO1988000697A1 Bone densitometer
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