| 12158066 |
Autodriller contextual scaling |
Nathaniel Wicks, Jian Wu |
2024-12-03 |
$49,395,000 |
| 12091958 |
Drilling system control for reducing stick-slip by calculating and reducing energy of upgoing rotational waves in a drillstring |
— |
2024-09-17 |
$26,792,000 |
| 11914403 |
Changing set points in a resonant system |
John Cook, Steven Antony Gahlings |
2024-02-27 |
$38,487,000 |
| 11814942 |
Optimizing algorithm for controlling drill string driver |
Nathaniel Wicks, Jian Wu |
2023-11-14 |
$32,302,000 |
| 11773710 |
Systems and methods to determine rotational oscillation of a drill string |
Adam Bowler |
2023-10-03 |
$32,771,000 |
| 11566509 |
Methods of drilling using mixed proportional integral derivative control |
— |
2023-01-31 |
$157,344,000 |
| 11422999 |
System and method for using data with operation context |
Shunfeng Zheng |
2022-08-23 |
$60,900,000 |
| 11346206 |
Prognostic health monitoring of downhole tools |
Adam Bowler, Mauro Caresta |
2022-05-31 |
$72,812,000 |
| 11261724 |
Drill bit distance to hole bottom measurement |
Shunfeng Zheng, Jacques Orban, Gokturk Tunc |
2022-03-01 |
$80,417,000 |
| 11136884 |
Well construction using downhole communication and/or data |
Shunfeng Zheng, Mochammad Faisal Wingky |
2021-10-05 |
$75,849,000 |
| 11066918 |
Methods and systems for use with a positive displacement motor |
— |
2021-07-20 |
$35,691,000 |
| 10975680 |
System and method for mitigating a mud motor stall |
Samba Ba |
2021-04-13 |
$75,453,000 |
| 10927658 |
Drilling system control for reducing stick-slip by calculating and reducing energy of upgoing rotational waves in a drillstring |
— |
2021-02-23 |
$117,569,000 |
| 10920584 |
Detection of influx and loss of circulation |
Oney Erge, Ines De Mata Cecilio, Richard Dearden, Jonathan Dunlop, Walter David Aldred +2 more |
2021-02-16 |
$33,097,000 |
| 10895142 |
Controlling drill string rotation |
Nathaniel Wicks, Shunfeng Zheng |
2021-01-19 |
$79,727,000 |
| 10883356 |
Automated sliding drilling |
Rustam Isangulov, Ginger Hildebrand |
2021-01-05 |
$67,972,000 |
| 10831218 |
Changing set points in a resonant system |
John Cook, Steven Antony Gahlings |
2020-11-10 |
$67,447,000 |
| 10711592 |
Downhole tool for measuring angular position |
— |
2020-07-14 |
$35,635,000 |
| 10689967 |
Rotational oscillation control using weight |
Nathaniel Wicks |
2020-06-23 |
$26,424,000 |
| 10612989 |
Method and apparatus for automated drilling rig sheave friction calibration |
— |
2020-04-07 |
$17,491,000 |
| 10422188 |
Pipe tracking system for drilling rigs |
Shunfeng Zheng, Christopher C. Bogath, Gokturk Tunc, Jacques Orban |
2019-09-24 |
$24,460,000 |
| 10409300 |
Changing set points in a resonant system |
John Cook, Steven Antony Gahlings |
2019-09-10 |
$28,709,000 |
| 10400522 |
Drill string with bottom hole assembly transition section having increasing external diameter and method of use |
— |
2019-09-03 |
$25,066,000 |
| 10392921 |
Downhole tool for measuring accelerations |
— |
2019-08-27 |
$12,718,000 |
| 9797235 |
Drilling optimization with a downhole motor |
Maurice Ringer, Michael Paul Barrett, Walter David Aldred, Ashley Bernard Johnson, Gokturk Tunc +1 more |
2017-10-24 |
$32,486,000 |
