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:
Sep. 02, 2003
Filed:
Oct. 23, 2000
Jonathan Stuart Lund, Ashby de la Zouch, GB;
BG Intellectual Property Limited, Reading, GB;
Abstract
A method of measuring a gas mass fraction (X) in a mass of liquid and gas flowing in direction (A) along pipeline ( ) which includes a venturi formed by throat ( ), convergent portion ( ) and divergent portion ( ). Adjacent the venturi ( ) but upstream is a flow conditioner ( ) creating a uniform mixture of gas and liquid downstream so as to reduce or avoid slip between the gas and liquid phases in the venturi. Differential pressure (DP ) is measured between a position upstream of the flow conditioner and a position intermediate the flow conditioner and venturi. Differential pressure (DP ) is measured between the throat and a position intermediate the flow conditioner and venturi. Differential pressure (DP ) is measured across the venturi. Computer ( ) calculates the gas mass fraction (X) using a formula that may take the form: X=a·(DP ) ·(DP ) ·(DP ) ·(DP −DP ) ·(DP +DP ) , in which a, b, c, d, e and f are constants.