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:
Nov. 03, 2020
Filed:
Jun. 23, 2017
Andreas Hohl, Hannover, DE;
Christian Herbig, Celle, DE;
Hatem Oueslati, Hannover, DE;
Hanno Reckmann, Nienhagen, DE;
Michael Neubert, Braunschweig, DE;
Andreas Hohl, Hannover, DE;
Christian Herbig, Celle, DE;
Hatem Oueslati, Hannover, DE;
Hanno Reckmann, Nienhagen, DE;
Michael Neubert, Braunschweig, DE;
BAKER HUGHES, A GE COMPANY, LLC, Houston, TX (US);
Abstract
Unwanted oscillations of a drill string while a borehole is being drilled are limited by adjusting a drilling parameter. Measurements related to oscillations of the drill string can be extrapolated by calculation to a position of interest along the drill string using a mode identified from one or more determined modes and a stability criterion that models the drill string. The stability criterion includes a specific modal damping for each of the one or more determined modes. The position of interest may correspond to a location of a tool or component that may be damaged by the unwanted oscillations. If the tool or component can be damaged by the oscillations as calculated, then the drilling parameter is adjusted to limit those oscillations.