Flow meter using an expanded tube section and sensitive...

Details Flow meter using an expanded tube section and sensitive... Flow meter using an expanded tube section and sensitive...

2006-09-19

2006-09-19

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Using differential pressure

C073S861640

Reexamination Certificate

active

07107860

ABSTRACT:
A method and apparatus for measuring the flow rate of a fluid within tubing disposed within a downhole wellbore. The present invention provides an inverse Venturi meter inserted within tubing with an enlarged inner diameter portion. Pressure differential is measured between the enlarged inner diameter portion and another portion of the inverse Venturi meter. Flow rate is determined from the pressure differential and the density of the fluid.

REFERENCES:
patent: 4856344 (1989-08-01), Hunt
patent: 5736650 (1998-04-01), Hiron et al.
patent: 5808188 (1998-09-01), Chriswell et al.
patent: 6612187 (2003-09-01), Lund
patent: 6898986 (2005-05-01), Daniel et al.
patent: 6912895 (2005-07-01), Jaeger
patent: 1210710 (1970-10-01), None

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