| Patent | Date |
|---|
Retrievable, formation resistivity tool, having a slotted collar
Grant 6,483,310 - Meador November 19, 2 | 2002-11-19 |
Method and apparatus for logging-while-drilling with improved performance through cancellation of systemic errors through combination of signals, utilization of dedicated transmitter drivers, and utilization of selected reference signals
Grant 5,402,068 - Meador , et al. * March 28, 1 | 1995-03-28 |
High sensitivity well logging system having dual transmitter antennas and intermediate series resonant
Grant 5,081,419 - Meador , et al. January 14, 1 | 1992-01-14 |
Drill stem logging with electromagnetic waves and electrostatically-shielded and inductively-coupled transmitter and receiver elements
Grant 4,785,247 - Meador , et al. November 15, 1 | 1988-11-15 |
System for monitoring formation spontaneous potential and polarization constant while drilling
Grant 4,625,173 - Wisler , et al. November 25, 1 | 1986-11-25 |
Dielectric well logging system with at least three transmitter coils and at least two receiver coils for determining resistivity and dielectric constant of a subsurface formation adjacent a fluid invaded zone of the formation
Grant 4,609,873 - Cox , et al. September 2, 1 | 1986-09-02 |
Transformer cable connector
Grant 4,605,268 - Meador August 12, 1 | 1986-08-12 |
Electrical resistivity measurement of a flowing drilling fluid using eddy currents generated therein
Grant 4,536,713 - Davis , et al. August 20, 1 | 1985-08-20 |
Dielectric well logging system with electrostatically shielded coils
Grant 4,514,693 - Meador April 30, 1 | 1985-04-30 |
Crude oil production stream analyzer
Grant 4,458,524 - Meador , et al. July 10, 1 | 1984-07-10 |
Logging tool and method for measuring resistivity of different radial zones at a common depth of measurement
Grant 4,451,789 - Meador May 29, 1 | 1984-05-29 |
Electromagnetic wave logging dipmeter
Grant 4,422,043 - Meador December 20, 1 | 1983-12-20 |
Measurement of salt content in petroleum flow lines
Grant 4,352,288 - Paap , et al. October 5, 1 | 1982-10-05 |
Dielectric well logging with radially oriented coils
Grant 4,319,191 - Meador , et al. March 9, 1 | 1982-03-09 |
Electromagnetic wave propagation well logging utilizing multiple phase shift measurement
Grant 4,107,597 - Meador , et al. August 15, 1 | 1978-08-15 |
Electromagnetic wave logging system for determining resistivity and dielectric constant of earth formations
Grant 4,107,598 - Meador , et al. August 15, 1 | 1978-08-15 |
Radio frequency resistivity and dielectric constant well logging utilizing phase shift measurement
Grant 4,012,689 - Cox , et al. March 15, 1 | 1977-03-15 |
Dielectric induction logging system for obtaining water and residual oil saturation of earth formations
Grant 4,009,434 - McKinlay , et al. February 22, 1 | 1977-02-22 |
Combination radio frequency dielectric and conventional induction logging system
Grant 3,982,176 - Meador September 21, 1 | 1976-09-21 |
Dual radio frequency apparatus for determining electromagnetic characteristics of earth formations using constant flux field generators
Grant 3,893,020 - Meador , et al. July 1, 1 | 1975-07-01 |
Dual radio frequency method for determining dielectric and conductivity properties of earth formations using normalized measurements
Grant 3,893,021 - Meador , et al. July 1, 1 | 1975-07-01 |
Dual radio frequency measurement of dielectric constant and resistivity of borehole media
Grant 3,891,916 - Meador , et al. June 24, 1 | 1975-06-24 |
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