E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 49/08 (2006.01) E21B 17/06 (2006.01) E21B 23/06 (2006.01) E21B 33/127 (2006.01) E21B 47/10 (2006.01)
Patent
CA 2045537
2045537 9107567 PCTABS00005 Wellbore fluid flow rates and other fluid properties may be measured by a tool (10) which is insertable in the well bore on the end of a tubing string (14) and includes an instrument section (116) and an inflatable packer (140) disposed on the tool for inflation by conducting pressure fluid down the tubing string to the packer. A control valve (58) disposed on the tool is hydraulically shiftable between first and second positions for conducting fluid from the tubing string (14) to the packer (140) and from the packer (140) the exterior of the tool. The valve (58) may be actuated by fluid conducted down the tubing string. The tool includes housing parts having respective cavities for conducting wellbore fluid through a flowmeter (124) and for containing instrument circuit enclosures disposed therein. Pressure fluid bypasses the cavities through elongated passages formed in the tool housing parts along or adjacent to the outer periphery of the housing parts. A frangible coupling (153) is interposed in the tool between the packer and the instrument section.
Atlantic Richfield Company
Ridout & Maybee Llp
LandOfFree
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