Data processing: measuring – calibrating – or testing – Calibration or correction system – Fluid or fluid flow measurement
Reexamination Certificate
2006-07-20
2008-11-25
Nghiem, Michael P. (Department: 2863)
Data processing: measuring, calibrating, or testing
Calibration or correction system
Fluid or fluid flow measurement
Reexamination Certificate
active
07457714
ABSTRACT:
Systems and methods for determining the fraction of a first phase of a multiphase fluid flow stream, such as the amount of water in crude petroleum oil flowing from a production well or container. An electrical property, such as permittivity, and a physical property, such as density, are used as the basis of the improved characterization. The method is particularly well-suited to reduce salinity-dependent uncertainties for wells experiencing high water cuts. A time series of measurements is collected, and the extrema of the observed values are used to generate a hindsight auto-calibration and correction to the other values using knowledge of the degree of uncertainty in the measurements caused by variable salinity and variable phase state of the multiphase fluid. The hindsight auto-calibration and corrections thus permit more accurate measurements of the instantaneous and the cumulative amounts of each phase in the multiphase fluid flow stream.
REFERENCES:
patent: 5259239 (1993-11-01), Gaisford
patent: 5260667 (1993-11-01), Garcia-Golding et al.
patent: 5576974 (1996-11-01), Marrelli et al.
patent: 5654502 (1997-08-01), Dutton
patent: 6234030 (2001-05-01), Butler
patent: 6318156 (2001-11-01), Dutton et al.
patent: 6327914 (2001-12-01), Dutton
patent: 2003/0011386 (2003-01-01), Xie et al.
patent: 2004/0129874 (2004-07-01), Torgersen et al.
patent: 2005/0081643 (2005-04-01), Mattar et al.
patent: 2007/0157708 (2007-07-01), Scott
patent: 2007/0239402 (2007-10-01), Scott
patent: WO 00/77739 (2000-12-01), None
Dutton, Robert E., “Automatic Well Test System and Method of Operating the Same”, PCT/US96/20890, Dec. 23, 1996, WO 97/24615, Jul. 10, 1997.
Mohajer, Kim et al, “Device for Determining Compositiion of a Fluid Mixture”, PCT/US05/015341, Mar. 5, 2005, WO 2005/109012A1 Nov. 17, 2005.
Groover & Associates
Khuu Cindy H
Nghiem Michael P.
Phase Dynamics Inc.
LandOfFree
Autocalibrated multiphase fluid characterization using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Autocalibrated multiphase fluid characterization using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Autocalibrated multiphase fluid characterization using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4020190