Selectively operable ball valve and production packer system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 6, 1990
Issued Date -
N/A
app pub date -
Apr 28, 1989
filing date -
Mar 30, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for installing and removing a production packer and ball valve apparatus in a well casing. The packer apparatus and valve apparatus are transported into a casing with an on/off overshot connected to a string of tubing. The packer is set by tubing manipulation independent of operation of the valve and the on/off connector and is resettable and can be disabled by a straight upward pull on the tubing string. The valve apparatus is selectively operable by rotary manipulation of the tubing string through the disengageable overshot and utilizes rotary motion to rotate a ball valve element between open and closed positions of the ball valve. In one form of the invention, the overshot is rotatably disengageable from the ball valve while the ball valve is operated by rotation of the string of pipe. The ball valve apparatus is capable of withstanding pressure in opposite directions.
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