| RE36012 |
Accelerator-based methods and apparatus for measurement-while-drilling |
William A. Loomis, Kenneth E. Stephenson, Jerome A. Truax, Wolfgang Ziegler, S. Zema Chowdhuri +6 more |
1998-12-29 |
| 5804820 |
Method for determining density of an earth formation |
Michael Evans |
1998-09-08 |
| 5635711 |
Apparatus and method for the suppression of microphonic noise in proportional counters for borehole logging-while-drilling |
W. Robert Sloan, Philip L. Kurkoski |
1997-06-03 |
| 5539225 |
Accelerator-based methods and apparatus for measurement-while-drilling |
William A. Loomis, Kenneth E. Stephenson, Jerome A. Truax, Wolfgang Ziegler, S. Zema Chowdhuri +6 more |
1996-07-23 |
| 5513528 |
Logging while drilling method and apparatus for measuring standoff as a function of angular position within a borehole |
Michael Evans, Philip L. Kurkoski, William R. Sloan, David L. Best |
1996-05-07 |
| 5473158 |
Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole |
Michael Evans, Philip L. Kurkoski, William R. Sloan, David L. Best |
1995-12-05 |
| 5250806 |
Stand-off compensated formation measurements apparatus and method |
Erik Rhein-Knudsen, Michael Evans |
1993-10-05 |
| 5023449 |
Nuclear spectroscopy signal stabilization and calibration method and apparatus |
W. Robert Sloan |
1991-06-11 |
| 4661700 |
Well logging sonde with shielded collimated window |
— |
1987-04-28 |
