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:
Mar. 10, 2015
Filed:
Aug. 06, 2010
Mehmet Deniz Ertas, Bethlehem, PA (US);
Jeffrey R. Bailey, Houston, TX (US);
Damian N. Burch, Missouri City, TX (US);
Lei Wang, Sugar Land, TX (US);
Paul E. Pastusek, The Woodlands, TX (US);
Shankar Sundararaman, Houston, TX (US);
Mehmet Deniz Ertas, Bethlehem, PA (US);
Jeffrey R. Bailey, Houston, TX (US);
Damian N. Burch, Missouri City, TX (US);
Lei Wang, Sugar Land, TX (US);
Paul E. Pastusek, The Woodlands, TX (US);
Shankar Sundararaman, Houston, TX (US);
ExxonMobil Upstream Research Company, Houston, TX (US);
Abstract
Method to estimate severity of downhole vibration for a drill tool assembly, including: identifying a dataset comprising selected drill tool assembly parameters; selecting a reference level of downhole vibration amplitude for the drill tool assembly; identifying a surface drilling parameter and calculating a reference surface vibration attribute for the selected reference level of downhole vibration amplitude; determining a surface parameter vibration attribute derived from at least one surface measurement or observation obtained in a drilling operation, the determined surface parameter vibration attribute corresponding to the identified surface drilling parameter; and estimating a downhole vibration severity indicator by evaluating the determined surface parameter vibration attribute with respect to the identified reference surface vibration attribute.