| Patent | Date |
|---|
Oxygen activation method for quantitative water flow measurements within and behind well bore casing
Grant 5,461,909 - Arnold October 31, 1 | 1995-10-31 |
Tracer injection method
Grant 4,861,986 - Arnold August 29, 1 | 1989-08-29 |
Multi-function natural gamma ray logging system
Grant 4,585,939 - Arnold , et al. April 29, 1 | 1986-04-29 |
Method for logging fluid flow rate, water fraction, and/or salinity of water flowing into a well
Grant 4,574,193 - Arnold , et al. March 4, 1 | 1986-03-04 |
Borehole compensated density logs corrected for naturally occurring gamma rays
Grant 4,529,877 - Arnold July 16, 1 | 1985-07-16 |
Method for monitoring drilling materials for gamma ray activity
Grant 4,493,998 - Smith, Jr. , et al. January 15, 1 | 1985-01-15 |
Natural gamma ray logging with borehole effect compensation
Grant 4,439,676 - Smith, Jr. , et al. March 27, 1 | 1984-03-27 |
Method for simultaneous measurement of borehole and formation neutron lifetimes
Grant 4,424,444 - Smith, Jr. , et al. January 3, 1 | 1984-01-03 |
Detection of impurities in a fluid containing free gas using nuclear techniques
Grant 4,365,154 - Arnold , et al. December 21, 1 | 1982-12-21 |
Measurement of salt content in petroleum flow lines
Grant 4,352,288 - Paap , et al. October 5, 1 | 1982-10-05 |
Simultaneous gamma ray measurement of formation bulk density and casing thickness
Grant 4,297,575 - Smith, Jr. , et al. October 27, 1 | 1981-10-27 |
Multiphase fluid flow meter (D#76,244)
Grant 4,282,760 - Pitts, Jr. , et al. August 11, 1 | 1981-08-11 |
Water injection profiling
Grant 4,233,508 - Arnold November 11, 1 | 1980-11-11 |
Method and apparatus for measuring underground fluid flow characteristics
Grant 4,228,350 - Paap , et al. October 14, 1 | 1980-10-14 |
Measuring oil and water cuts in a multiphase flowstream with elimination of the effects of gas in determining the liquid cuts
Grant 4,200,789 - Arnold , et al. April 29, 1 | 1980-04-29 |
Water injection profiling by nuclear logging
Grant 4,189,638 - Arnold February 19, 1 | 1980-02-19 |
Method and apparatus for measuring azimuth and speed of horizontal fluid flow by a borehole
Grant 4,169,979 - Arnold , et al. October 2, 1 | 1979-10-02 |
Multiphase fluid flow meter
Grant 4,144,754 - Pitts, Jr. , et al. March 20, 1 | 1979-03-20 |
Method of measuring horizontal fluid flow in cased off subsurface formations with manganese compensation
Grant 4,137,452 - Paap , et al. January 30, 1 | 1979-01-30 |
Acoustic-nuclear permeability logging system
Grant 4,102,185 - Dowling , et al. July 25, 1 | 1978-07-25 |
Radioactive well logging to measure earth formation fluid permeability by electrohydraulic induced flow of radiation activated fluids
Grant 4,076,980 - Arnold , et al. February 28, 1 | 1978-02-28 |
Detection of behind casing water flow at an angle to the axis of a well borehole
Grant 4,071,757 - Arnold , et al. January 31, 1 | 1978-01-31 |
Behind casing fluid flow detection in producing wells using gas lift
Grant 4,057,720 - Paap , et al. November 8, 1 | 1977-11-08 |
Method of measuring horizontal flow speed of fluids in earth formations penetrated by a wellborehole
Grant 4,051,368 - Arnold , et al. September 27, 1 | 1977-09-27 |
Well fluid production profiling using an oxygen activation flow meter
Grant 4,032,781 - Arnold June 28, 1 | 1977-06-28 |
Behind casing water volume flow rate measurement using gamma ray spectral degradation
Grant 4,032,778 - Paap , et al. June 28, 1 | 1977-06-28 |
Behind casing water volume flow rate measurement using concentric gamma ray detectors
Grant 4,032,779 - Arnold , et al. June 28, 1 | 1977-06-28 |
Behind casing water flow detection using continuous oxygen activation
Grant 4,032,780 - Paap , et al. June 28, 1 | 1977-06-28 |
Simultaneous thermal neutron lifetime and boron content well log
Grant 4,002,904 - Smith, Jr. , et al. January 11, 1 | 1977-01-11 |
Three frequency modulated combination thermal neutron lifetime log and porosity
Grant 3,979,300 - Paap , et al. September 7, 1 | 1976-09-07 |
Method for determining thermal neutron decay times of earth formations
Grant 3,940,611 - Arnold February 24, 1 | 1976-02-24 |
Radiological Well Logging Methods And Apparatus For Reducing The Effect Of Activation From The Detector Crystal
Grant 3,842,264 - Arnold , et al. * October 15, 1 | 1974-10-15 |
Pulsed Neutron Logging Systems For Detecting Gas Zones
Grant 3,780,301 - Smith, Jr. , et al. December 18, 1 | 1973-12-18 |
Pulsed Neutron Logging With Background Compensation
Grant 3,780,303 - Smith, Jr. , et al. December 18, 1 | 1973-12-18 |
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