Patent · US Active

Distributed sensors-controller for active vibration damping from surface

US8042623B2 · kind B2 · utility

13Cited by

4References

25Claims

0Family size

Assignee

Baker Hughes Holdings LLC · US

Inventors

Lars Quernheim · Sulingen, DE
Dmitriy Dashevskiy · Bad Doberan, DE
John D. Macpherson · Spring, US

Key dates

Filing date	Mar 17, 2008
Grant date	Oct 25, 2011
Priority date	—
Expiry date	Aug 6, 2028

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B44/00
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus for controlling a vibration of a drill string, the apparatus including: a plurality of sensors in operable communication with the drill string; and a controller in operable communication with the plurality of sensors, the controller connectable to a drill string motivator and capable of outputting a signal to the drill string motivator to control the vibration of the drill string.

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