Data processing: measuring – calibrating – or testing – Measurement system – Speed
Reexamination Certificate
2011-05-31
2011-05-31
Khuu, Cindy Hien-Dieu (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system
Speed
Reexamination Certificate
active
07953575
ABSTRACT:
When an electrical submersible pump motor runs, rotary vibrations occur in the same direction as the rotation of the motor. This vibration can be detected by an XY vibration sensor. Depending on the rotation direction, the vibration along the X-axis will be out of phase +90 degrees or −90 degrees with the vibration in the Y-axis. To determine the rotation direction, the vibration sensor measures a vibration of an ESP pump in two axes, recording first and second vibration signals. Next, whether the first signal either leads or lags the second signal is determined by, for example, comparing correlations of the first and second signal with the second signal shifted by plus and minus one-fourth of the period of rotation. Then a direction of a rotation of the electrical submersible pump can be determined responsive to the determination of whether the first signal either leads or lags the second signal.
REFERENCES:
patent: 5038614 (1991-08-01), Bseisu et al.
patent: 5397949 (1995-03-01), Guardiani et al.
patent: 6167965 (2001-01-01), Bearden et al.
patent: 6466002 (2002-10-01), Elsner
patent: 6566774 (2003-05-01), Parmeter et al.
patent: 2004/0013222 (2004-01-01), Hikida et al.
patent: 2004/0216525 (2004-11-01), Hikida et al.
patent: 2004/0251027 (2004-12-01), Sonnier
patent: 2005/0072239 (2005-04-01), Longsdorf et al.
patent: 2009/0043530 (2009-02-01), Sittler et al.
patent: 2010/0202581 (2010-08-01), Kitajima et al.
patent: 2010/0247335 (2010-09-01), Atherton
patent: 05-033799 (1993-02-01), None
patent: WO 2006/127939 (2006-11-01), None
patent: WO 2008/152376 (2008-12-01), None
Baker Hughes Centrilift, Data Sheet, 2 pages, 2007.
Baker Hughes Incorporated
Bracewell & Giuliani LLP
Khuu Cindy Hien-Dieu
LandOfFree
Electrical submersible pump rotation sensing using an XY... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical submersible pump rotation sensing using an XY..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical submersible pump rotation sensing using an XY... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2678345