SHEAR TYPE CIRCULATION VALVE AND SWIVEL WITH OPEN PORT RECIPROCATING FEATURE

摘要

A tool and associated method allows a liner top to be dressed. Then while maintaining a lateral port (72) closed the tool can be used to circulate while being rotated and reciprocated. The tool features discrete j-slot mechanisms. The upper j-slot (44, 56) allows the lateral port (72) to initially open while the lower j-slot (42, 100) keeps the lateral port (72) open despite movement of the tool in opposed directions in the hole due to a barrier (114) to the pin in the lower j-slot (42, 100). When enough weight is set or the barrier is otherwise removed, the lateral port (72) can be closed and the test packer set down weight with the lateral port (72) can be reopened and circulation and swiveling on a bearing can occur even if the packer is temporarily actuated from the setting down motion that reopened the lateral port (72).