Patent · US Active

Dampers for mitigation of downhole tool vibrations

US11136834B2 · kind B2 · utility

2Cited by

19References

20Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Andreas Hohl · Hannover, DE
Sasa Mihajlovic · Hannover, DE

Key dates

Filing date	Mar 14, 2019
Grant date	Oct 5, 2021
Priority date	—
Expiry date	Mar 14, 2039

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B17/073
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

Systems and methods for damping torsional oscillations of downhole systems are described. The systems include a damping system configured on the downhole system. The damping system includes a first element and a second element in frictional contact with the first element. The second element moves relative to the first element with a velocity that is a sum of a periodic velocity fluctuation having an amplitude and a mean velocity, wherein the mean velocity is lower than the amplitude of the periodic velocity fluctuation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.