Invention Grant
- Patent Title: Flow meter using an expanded tube section and sensitive differential pressure measurement
- Patent Title (中): 流量计使用扩张管段和敏感差压测量
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Application No.: US12017934Application Date: 2008-01-22
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Publication No.: US07658117B2Publication Date: 2010-02-09
- Inventor: Richard T. Jones
- Applicant: Richard T. Jones
- Applicant Address: US TX Houston
- Assignee: Weatherford/Lamb, Inc.
- Current Assignee: Weatherford/Lamb, Inc.
- Current Assignee Address: US TX Houston
- Agency: Patterson & Sheridan, LLP
- Main IPC: G01F1/44
- IPC: G01F1/44
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.
Public/Granted literature
- US20080178686A1 FLOW METER USING AN EXPANDED TUBE SECTION AND SENSITIVE DIFFERENTIAL PRESSURE MEASUREMENT Public/Granted day:2008-07-31
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