Well apparatus

Details Well apparatus Well apparatus

E - Fixed Constructions

21

B

E21B 34/14 (2006.01) E21B 23/04 (2006.01)

Patent

CA 2136591

Well apparatus is disclosed in which a tool is lowered on a pipe string into a well conduit for shifting a sleeve slidably mounted within a tubular housing connected as part of the well conduit. The sleeve has vertically spaced grooves about its inner diameter, and the tool has latches which are selectively moved into and out of engagement with a selected groove in the sleeve in response to the control of the pressure of fluid within the tool. When engaged in a groove, the tool may be raised or lowered with the pipe string to raise or lower the sleeve.

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