The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2020
Filed:
Dec. 09, 2016
Downhole drilling methods and systems with top drive motor torque commands based on a dynamics model
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Yiming Zhao, Houston, TX (US);
Jason D. Dykstra, Spring, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/04 (2006.01); E21B 44/00 (2006.01); G05B 19/042 (2006.01);
U.S. Cl.
CPC ...
E21B 44/04 (2013.01); E21B 44/00 (2013.01); G05B 19/042 (2013.01); G05B 2219/45129 (2013.01);
Abstract
A drilling system includes a top drive having a motor with a rotating shaft and an adjustable torque. The drilling system also includes a connector that couples the rotating shaft to a drillstring. The drillstring system also includes a controller that provides torque commands to the motor, wherein the torque commands are based at least in part on a dynamics model and operate to dampen vibrations due to torsional wave propagation along the drillstring.