Wells – Packers or plugs – With central conduit and fluid port to space outside
Patent
1989-11-15
1991-05-28
Kisliuk, Bruce M.
Wells
Packers or plugs
With central conduit and fluid port to space outside
166 651, 166187, 166188, 166145, 166151, 166 66, E21B 2306, E21B 33127
Patent
active
050185748
ABSTRACT:
Wellbore fluid flow rates and other fluid properties may be measured by a tool which is insertable in the wellbore on the end of a tubing string and includes an instrument section and an inflatable packer disposed on the tool for inflation by conducting pressure fluid down the tubing string to the packer. A control valve disposed on the tool is hydraulically shiftable between first and second positions for conducting fluid from the tubing string to the packer and from the packer to the exterior of the tool. The valve 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 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 is interposed in the tool between the packer and the instrument section.
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Wade et al., "Production Logging-The Key to Optimum Well Performance", Journal of Petroleum Technology, Feb. 1965, pp. 137-144.
Atlantic Richfield Company
Kisliuk Bruce M.
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