Well tool

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E - Fixed Constructions

21

B

166/42

E21B 34/14 (2006.01) E21B 23/02 (2006.01) E21B 23/08 (2006.01) E21B 34/10 (2006.01) E21B 34/00 (2006.01)

Patent

CA 1164795

WELL TOOL Abstract of the Disclosure A valve for landing in a landing nipple which landing nipple includes an actuator for the valve with the valve including radially expansible locking means for locking the valve to the landing nipple and to the actuator. This invention relates to locking mandrels for locking equipment in landing nipples and more particularly to a valve which may be locked in a landing nipple and have its actuator locked to an operator in the landing nipple. In United States Patent No. 4,378,931, issued April 5, 1983, there is shown a valve having provisions for a second- ary valve.

386510

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