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Class Information
Number: 376/166
Name: Induced nuclear reactions: processes, systems, and elements > Nuclear transmutation (e.g., by means of particle or wave energy) > By neutron bombardment > Neutron activation analysis > Subterranean > Specific nuclides > Oxygen, carbon
Description: Subject matter wherein the recited nucleus is either oxygen or carbon.










Patents under this class:

Patent Number Title Of Patent Date Issued
7732772 System and method for detecting explosive materials Jun. 8, 2010
7430479 System and method for analyzing content data Sep. 30, 2008
6909764 Method and apparatus for high-energy generation and for inducing nuclear reactions Jun. 21, 2005
5373538 System for the detection of substances and in particular explosives by the neutron irradiation thereof Dec. 13, 1994
5343041 Method and apparatus for determining the physical characteristics of a water flow Aug. 30, 1994
5313504 Neutron and photon monitor for subsurface surveying May. 17, 1994
5219518 Nuclear oxygen activation method and apparatus for detecting and quantifying water flow Jun. 15, 1993
5098640 Apparatus and method for detecting contraband using fast neutron activation Mar. 24, 1992
5094808 Oxygen activation downhole tool Mar. 10, 1992
5076993 Contraband detection system using direct imaging pulsed fast neutrons Dec. 31, 1991
5008067 Method of downhole neutron monitoring Apr. 16, 1991
4795903 Analysis of fluids Jan. 3, 1989
4737636 Simultaneous neutron lifetime and oxygen activation and fluid sampling methods and apparatus to locate fluid flow in a cased well borehole Apr. 12, 1988
4574193 Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well Mar. 4, 1986
4501964 Borehole compensated oxygen activation nuclear well logging Feb. 26, 1985
4287415 Measurement of flowing water salinity within or behind wellbore casing Sep. 1, 1981
4233508 Water injection profiling Nov. 11, 1980
4189638 Water injection profiling by nuclear logging Feb. 19, 1980
4136279 Method and apparatus for pulsed neutron spectral analysis using spectral stripping Jan. 23, 1979
4076980 Radioactive well logging to measure earth formation fluid permeability by electrohydraulic induced flow of radiation activated fluids Feb. 28, 1978
4071757 Detection of behind casing water flow at an angle to the axis of a well borehole Jan. 31, 1978
4057720 Behind casing fluid flow detection in producing wells using gas lift Nov. 8, 1977
4047028 Resolution of through tubing fluid flow and behind casing fluid flow in multiple completion wells Sep. 6, 1977
4035640 Behind casing water flow detection using pulsed neutron oxygen activation Jul. 12, 1977
4032778 Behind casing water volume flow rate measurement using gamma ray spectral degradation Jun. 28, 1977
4032779 Behind casing water volume flow rate measurement using concentric gamma ray detectors Jun. 28, 1977
4032781 Well fluid production profiling using an oxygen activation flow meter Jun. 28, 1977
4032780 Behind casing water flow detection using continuous oxygen activation Jun. 28, 1977
4028546 Behind well casing water flow detection system Jun. 7, 1977
3993904 Low-cost but accurate radioactive logging for determining water saturations in a reservoir Nov. 23, 1976
3943362 Simultaneous oxygen and silicon neutron activation well log using pulsed neutron source Mar. 9, 1976











 
 
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