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. 19, 2013
Filed:
May. 28, 2009
Mehmet Deniz Ertas, Bethlehem, PA (US);
Erika A. O. Biediger, Houston, TX (US);
Shankar Sundararaman, Houston, TX (US);
Jeffrey R. Bailey, Houston, TX (US);
Vishwas Gupta, Sugar Land, TX (US);
Swarupa Soma Bangaru, Pittstown, NJ (US);
Mehmet Deniz Ertas, Bethlehem, PA (US);
Erika A. O. Biediger, Houston, TX (US);
Shankar Sundararaman, Houston, TX (US);
Jeffrey R. Bailey, Houston, TX (US);
Vishwas Gupta, Sugar Land, TX (US);
Narasimha-Rao V. Bangaru, Pittstown, NJ (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Methods and systems of reducing drilling vibrations include generation a vibration performance index using at least one frequency-domain model having a velocity-dependent friction relationship. The vibration performance index may be used to aid in the design or manufacture of a drill tool assembly. Additionally or alternatively, the vibration performance index may inform drilling operations to reduce vibrations.