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.
Patent No.:
Date of Patent:
Nov. 25, 2008
Filed:
Jul. 20, 2006
Bentley N. Scott, Garland, TX (US);
Bentley N. Scott, Garland, TX (US);
Phase Dynamics, Inc., Richardson, TX (US);
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.