| 12091921 |
Shock-based damping systems and mechanisms for vibration damping in downhole applications |
Vincent Kulke, Georg-Peter Ostermeyer, Hanno Reckmann, Armin Kueck |
2024-09-17 |
$71,465,000 |
| 12084924 |
Dampers for mitigation of downhole tool vibrations and vibration isolation device for downhole bottom hole assembly |
Volker Peters, Dennis Heinisch, Hanno Reckmann, Sasa Mihajlovic |
2024-09-10 |
|
| 12065922 |
Estimation of maximum load amplitudes in drilling systems using multiple independent measurements |
— |
2024-08-20 |
$95,327,000 |
| 11692404 |
Optimized placement of vibration damper tools through mode-shape tuning |
Volker Peters, Hanno Reckmann, Armin Kueck, Christian Herbig, Dennis Heinisch +3 more |
2023-07-04 |
|
| 11668179 |
Drilling evaluation based on coupled torsional vibrations |
Vincent Kulke |
2023-06-06 |
$62,025,000 |
| 11598195 |
Statistical approach to incorporate uncertainties of parameters in simulation results and stability analysis for earth drilling |
Oliver Hoehn, Armin Kueck |
2023-03-07 |
|
| 11448015 |
Dampers for mitigation of downhole tool vibrations |
— |
2022-09-20 |
$61,338,000 |
| 11434694 |
Automated spiraling detection |
Christian Herbig, Hanno Reckmann, Wojciech Emmerich, Oliver Hoehn, Christian Linke +3 more |
2022-09-06 |
$23,573,000 |
| 11288418 |
Optimal storage of load data for lifetime prediction for equipment used in a well operation |
Christian Herbig, Armin Kueck, Michael Neubert, Hanno Reckmann |
2022-03-29 |
$83,513,000 |
| 11208853 |
Dampers for mitigation of downhole tool vibrations and vibration isolation device for downhole bottom hole assembly |
Volker Peters, Dennis Heinisch, Hanno Reckmann, Sasa Mihajlovic |
2021-12-28 |
$84,509,000 |
| 11199242 |
Bit support assembly incorporating damper for high frequency torsional oscillation |
Sasa Mihajlovic |
2021-12-14 |
$13,293,000 |
| 11136834 |
Dampers for mitigation of downhole tool vibrations |
Sasa Mihajlovic |
2021-10-05 |
$25,385,000 |
| 11021945 |
Method to mitigate bit induced vibrations by intentionally modifying mode shapes of drill strings by mass or stiffness changes |
Mathias Tergeist, Hatem Oueslati, Christian Herbig, Jayesh Jain, Hanno Reckmann +1 more |
2021-06-01 |
$28,532,000 |
| 10982526 |
Estimation of maximum load amplitudes in drilling systems independent of sensor position |
— |
2021-04-20 |
$26,104,000 |
| 10830038 |
Borehole communication using vibration frequency |
Wojciech Emmerich |
2020-11-10 |
$9,387,000 |
| 10822939 |
Normalized status variables for vibration management of drill strings |
Christian Herbig, Hatem Oueslati, Hanno Reckmann, Michael Neubert |
2020-11-03 |
$4,148,000 |
| 10746013 |
Downhole test signals for identification of operational drilling parameters |
— |
2020-08-18 |
$22,892,000 |
| 10385615 |
Vibrationless moineau system |
Christian Herbig, Hanno Reckmann, Carsten Hohl, Harald Grimmer |
2019-08-20 |
$6,778,000 |
| 10380280 |
Optimal storage of load data for lifetime prediction for equipment used in a well operation |
Christian Herbig, Armin Kueck, Michael Neubert, Hanno Reckmann |
2019-08-13 |
$7,450,000 |
| 10364663 |
Downhole operational modal analysis |
Mohamed Ichaoui, Hanno Reckmann |
2019-07-30 |
$8,416,000 |
| 10036203 |
Automated spiraling detection |
Christian Herbig, Hanno Reckmann, Wojciech Emmerich, Oliver Hoehn, Christian Linke +3 more |
2018-07-31 |
$14,068,000 |
| 9976405 |
Method to mitigate bit induced vibrations by intentionally modifying mode shapes of drill strings by mass or stiffness changes |
Mathias Tergeist, Hatem Oueslati, Christian Herbig, Jayesh Jain, Hanno Reckmann +1 more |
2018-05-22 |
$9,749,000 |
| 9739906 |
System and method for defining permissible borehole curvature |
Ingo Forstner, Christian Herbig, Christian Linke |
2017-08-22 |
$7,876,000 |
| 9435187 |
Method to predict, illustrate, and select drilling parameters to avoid severe lateral vibrations |
Bernhard Meyer-Heye, Hanno Reckmann |
2016-09-06 |
$17,244,000 |
| 9394957 |
Connection of spring ends |
Roland Meier, David Scheidegger |
2016-07-19 |
|