| 9556679 |
Rotary steerable assembly inhibiting counterclockwise whirl during directional drilling |
Elaine Larronde, Daryl Stroud, Jeff Johnson, Mike Spencer |
2017-01-31 |
| 8881844 |
Directional drilling control using periodic perturbation of the drill bit |
Steven Reid Farley, Roger P. Bartel, Charles Lee Mauldin, Robert Anthony Aiello |
2014-11-11 |
| 8191628 |
Method and apparatus for transmitting sensor response data and power through a mud motor |
Christopher Konschuh, Larry W. Thompson, Macmillan M. Wisler |
2012-06-05 |
| 8011425 |
Transmitting sensor response data and power through a mud motor |
Christopher Konschuh, Larry W. Thompson, Macmillan M. Wisler |
2011-09-06 |
| 7894302 |
Drilling system comprising a plurality of borehole telemetry systems |
Robert Anthony Aiello, John Martin, Steven Reid Farley, Kirk Towns |
2011-02-22 |
| 7503408 |
Steering assembly and steering component |
Colin Walker |
2009-03-17 |
| 7445060 |
Steerable drill bit arrangement |
Daryl Richard Henry Stroud |
2008-11-04 |
| 7303007 |
Method and apparatus for transmitting sensor response data and power through a mud motor |
Christopher Konschuh, Larry W. Thompson, Macmillan M. Wisler |
2007-12-04 |
| 6825659 |
Method and apparatus for nuclear magnetic resonance measuring while drilling |
Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more |
2004-11-30 |
| 6585061 |
Calculating directional drilling tool face offsets |
Paul Radzinski, Jian-Qun Wu |
2003-07-01 |
| 6583621 |
Method and apparatus for nuclear magnetic resonance measuring while drilling |
Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more |
2003-06-24 |
| 6362619 |
Method and apparatus for nuclear magnetic resonance measuring while drilling |
Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more |
2002-03-26 |
| 6268726 |
Method and apparatus for nuclear magnetic resonance measuring while drilling |
Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more |
2001-07-31 |
| 4790393 |
Valve for drilling fluid telemetry systems |
Manmohan S. Kalsi, M. Vikram Rao |
1988-12-13 |
| 4630244 |
Rotary acting shear valve for drilling fluid telemetry systems |
— |
1986-12-16 |
| 4531579 |
Valve latch device for drilling fluid telemetry systems |
Robert G. Hoos |
1985-07-30 |