Method and apparatus for recompleting wells with coil tubing
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United States of America Patent
Stats
-
Jul 4, 1989
Grant Date -
N/A
app pub date -
Jun 13, 1988
filing date -
Jun 13, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for recompleting an oil and/gas well inside of an existing well tubing in a well by supporting a coil tubing in the well tubing from a hanger assembly. A hydraulically actuated safety valve is connected in the coil tubing for controlling fluid flow through the coil tubing and is controlled by a hydraulic line connected to the safety valve and extending to the well surface outside of the coil tubing and inside of the well tubing. Packing is provided between the coil tubing and the well tubing and may include a well packer and/or annular safety valve. Gas lift mandrels may be connected to the coil tubing above the packoff.
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