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.

Date of Patent:
Feb. 20, 2024

Filed:

Dec. 19, 2020
Applicant:

Scientific Drilling International, Inc., Houston, TX (US);

Inventors:

Marco Volgmann, Braunschweig, DE;

William E. Denzel, Templeton, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 15/14 (2006.01); F16F 15/173 (2006.01); E21B 47/017 (2012.01); E21B 17/07 (2006.01);
U.S. Cl.
CPC ...
E21B 47/017 (2020.05); E21B 17/073 (2013.01); F16F 15/145 (2013.01); F16F 15/173 (2013.01);
Abstract

A vibration damping device for use with downhole electronics may comprise: a device housing mechanically coupled to the downhole electronics and defining a receptacle; and an inertia element movably supported in the receptacle; wherein the volume of the receptacle is greater than the volume of the inertia element so as to define an interstitial volume therebetween and wherein the interstitial volume is occupied by a fluid or an elastomer. A method for tuning a downhole torsional damping device to match a desired downhole electronics may comprise a) calculating a set of natural frequencies and mode shapes for the downhole electronics, b) selecting a desired frequency from the calculated natural frequencies, c) tuning the damping device characteristics to match the selected frequency, d) using the mode shapes to place the damping device. The mode shapes may include antinodes and step d) includes positioning a damping device at an antinode.


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