发明申请
- 专利标题： METHODS AND APPARATUS FOR MEASURING RETURN FLOW IN A WELL
- 专利标题（中）： 用于测量回流的方法和装置
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申请号： US12936995申请日： 2009-04-02
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公开(公告)号： US20110094741A1公开(公告)日： 2011-04-28
- 发明人: Pierre Vigneaux , Dominique Guillot
- 申请人： Pierre Vigneaux , Dominique Guillot
- 申请人地址： VG Torola
- 专利权人： PRAD RESEARCH AND DEVELOPMENT LIMITED.
- 当前专利权人： PRAD RESEARCH AND DEVELOPMENT LIMITED.
- 当前专利权人地址： VG Torola
- 优先权： EP08290372.5 20080415
- 国际申请： PCT/EP2009/002398 WO 20090402
- 主分类号： E21B47/12
- IPC分类号： E21B47/12 ; E21B47/10
摘要：
The invention provides apparatus for use in a wellbore (32) made of a casing (30) and an annular (33) with a fluid within, comprising: a reel (40) of wound optic fiber line (10) fixed to an object (20) within the casing, and a light transmitter/receiver device (12) able to generate a signal through the optic fiber line and to measure a change of said signal; wherein the optic fiber line is: (a) on a first position fixed to a reference point (4) linked to the light transmitter/receiver device, and is (b) on a second position unwound from the reel; wherein the light transmitter/receiver device is able to measure the change of said signal when occurring at the second position; and the apparatus having a system able to measure the flow rate of the fluid exiting the annular at the surface level Q.
公开/授权文献
- US08517096B2 Methods and apparatus for measuring return flow in a well 公开/授权日：2013-08-27
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