F Type Lock Cylinder Mandrel Slickline Wireline Nickel Alloy

F Type Lock Cylinder Mandrel Slickline Wireline Nickel Alloy

F  Lock Mandrel Wireline Running Tool

Overview:

F-type lock cylinder is a kind of downhole device which is seated in the preset mandrel (seated joint) and used to control the flow rate downhole, such as plug, downhole safety valve, downhole choke, packer sleeve, etc. It can be selected to sit in the working cylinder at a predetermined position according to needs.

The commonly used technical parameters:

Specification: 2.75 ";

Internal fishing neck: 3 ";

Applicable seating joint specification: Baker-F type 2.75 ".

See attached drawings for detailed technical parameters.

Structural characteristics:

F-type lock cylinder is composed of inner fishing neck, positioning claw, supporting sleeve, spring, positioning claw sleeve, etc. When the F-shaped lock cylinder goes down, the positioning claw is retracted and will not sit still; When descending to the preset position, the F-shaped lock cylinder cannot move down, and the shear pin of the GS fishing tool is shaken down, and the GS fishing tool is lifted up, and the lock cylinder key will be opened under the action of the supporting sleeve and the spring; Continue to lift the fishing tool to make the positioning claw fully open. When F-type lock core is recovered, lower GS fishing tool and M-type probe rod, and M-type probe rod pushes down the supporting sleeve to make the positioning claw in a suspended state, lift the fishing tool, and then pull out the lock core after the positioning claw is recovered.

Matters needing attention:

1. Before each trip, check whether the mandrel can move freely, and the lock cylinder key can shrink freely without jamming.

2. Check the seal assembly to ensure that it is intact.